893INTELLIGENT TRANSPORTATION SYSTEMS MATERIALS

893.01General

The following are the requirements for Intelligent Transportation Systems (ITS). These requirements may be supplemented or amended by the requirements given elsewhere in the proposal, on the Plans, and on the details in the Special and Standard Highway Drawings. Requirements as specified within these Specifications shall comply with the latest applicable editions of the National Electrical Code (NEC) (a.k.a. NFPA 70), the American Society of Testing and Materials (ASTM), the American National Standards Institute (ANSI), National Electrical Manufacturers Association (NEMA), National Fire Protection Association (NFPA), National Electrical Safety Code (NESC) (a.k.a. ANSI/IEEE C2), the Underwriter’s Laboratory Incorporated (UL), International Organization for Standardization (ISO), Telecommunications Industry Association (TIA), the International Telecommunications Union (ITU), Institute of Electrical and Electronics Engineers (IEEE), Electronic Industries Alliance (EIA), the National Transportation Communications for ITS Protocol (NTCIP), and the applicable standards, specifications, and regulations of ALDOT. In case of conflict with cited Standard Publications and the Specifications, the requirements of the Specifications shall govern.

All ITS devices and equipment shall be fully compatible and integrated with the current version of: “ ALDOT’s Intelligent Transportation Systems software applications” (also known as ALDOT’s Advanced Transportation Management System or “ALGo ATMS”); ALDOT’s ITS communications network; and, ALDOT’s communication network management system. All items that are required to complete the installation and ensure a fully functional and operational system shall be supplied by the Contractor. Items required but not listed shall be at no direct pay. All components supplied by the Contractor are the responsibility of the Contractor.

893.02Fiber Optic Cable

Each fiber optic cable shall meet all the following criteria:

Standardization ISO 9001.

(ANSI/ICEAS-87-640) “Standard for Optical Fiber Outside Plant Communications Cable” (a.k.a. TIA-472D000) and United States Department of Agriculture (USDA) Rural Utilities Service (RUS) 7 Code of Federal Regulations (CFR) 1755.900.

in accordance with, the following tests: Telcordia GR-20 “Generic Requirements for Optical Fiber and Optical Fiber Cable” ASTM-D1248, Type II, Class C, Category 4, Grade 4 “Standard Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable” ASTM-D1603 “Standard Test Method for Carbon Black in Olefin Plastics” ASTM-D3895 “Standard Test Method for Oxidative -Induction Time of Polyolefins by Differential Scanning Calorimetry”

Fiber Optic Cable

ASTM-D4565 “Standard Test Methods for Physical and Environmental Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable”.

and in accordance with the most current ANSI/TIA/EIA -455 “General Requirements for Standard Test Procedure for Optical Fibers, Cables, Transducers, Sensors, Connecting and Terminating Devices, and other Fiber Optic Components” . Th e Fiber Optic Test Procedures (FOTPs) addenda, as they are applicable to the required fiber optic cable, are as follows: ANSI/TIA/EIA-455-3 “FOTP-3 Procedure to Measure Temperature Cycling Effects on Optical Fiber Units, Optical Fiber, and Other Passive Fiber Components” ANSI/TIA/EIA-455-25 “FOTP-25 Impact Testing of Optical Fiber Cables” ANSI/TIA/EIA-455-28 “FOTP-28 Measuring Dynamic Strength and Fatigue Parameters of Optical Fibers by Tension” ANSI/TIA/EIA-455-31 “FOTP-31 Proof Testing Optical Fibers by Tension” ANSI/TIA/EIA-455-33 “FOTP-33 Optical Fiber Cable Tensile Loading and Bending Test” ANSI/TIA/EIA-455-37 “FOTP-37 Low or High Temperature Bend Test for Fiber Optic Cable” ANSI/TIA/EIA-455-41 “FOTP-41 Compression Loading Resistance of Optical Fiber Cables” ANSI/TIA/EIA-455-62 “FOTP-62 Optical Fibres - Part 1-47: Measurement Methods and Test Procedures - Macrobending Loss” ANSI/TIA/EIA-455-78 “FOTP-78 Optical Fibres - Part 1-40: Measurement Methods and Test Procedures - Attenuation” ANSI/TIA/EIA-455-80 “FOTP-80 Optical Fibres - Part 1-44: Measurement Methods and Test Procedures - Cut-Off Wavelength” ANSI/TIA/EIA-455-81 “FOTP-81 Compound Flow (Drip) Test for Filled Fiber Optic Cable” ANSI/TIA/EIA-455-82 “FOTP-82 Fluid Penetration Test for Fluid-Blocked Fiber Optic Cable” ANSI/TIA/EIA-455-104 “FOTP-104 Fiber Optic Cable Cyclic Flexing Test” ANSI/TIA/EIA-455-113 “FOTP-113 Polarization -Mode Dispersion Measurement for Single-Mode Optical Fibers by the Fixed Analyzer Method” ANSI/TIA/EIA-455-175 “FOTP-175 Optical Fibres - Part 1-42: Measurement Methods and Test Procedures - Chromatic Dispersion” ANSI/TIA/EIA-455-176 “FOTP-176 Optical Fibres - Part 1-20: Measurement Methods and Test Procedures - Fibre Geometry” ANSI/TIA/EIA-455-181 “FOTP-181 Lightning Damage Susceptibility Test for Fiber Optic Cables with Metallic Components” ANSI/TIA/EIA-455-191 “FOTP-191 Optical Fibres - Part 1-45: Measurement Methods and Test Procedures - Mode Field Diameter”

These industry standards listed above shall be of the most current active version. If a standard is withdrawn by the authorizing organization, then the superseding standard(s) shall apply. All fiber optic cable supplied and utilized on this project shall be from a single (o ne) United States (U.S.) resident manufacturer who can demonstrate that said manufacturer is regularly, and for a minimum of five (5) previous years (continuous), engaged in the production of each, every and all specified fiber optic cable(s) herein and sh all warrant that said cable(s) shall be produced utilizing the manufacturing processes for said cable(s) noted within this Specification.

Fiber Optic Cable

All fiber optic cable(s) supplied and utilized shall be manufactured from U.S. made components only, with the exceptio n of aramid yarn. The Contractor shall notify the Engineer of the use of foreign aramid yarns at submittal. In the event that U.S. resident manufactured fiber optic cable is readily unavailable due to excessive lead time, as specified by the Construction Engineer, for production, the Contractor may submit, with or prior to the material submittals, a Non-U.S. based cable manufacturer cable meeting requirements to the Engineer for consideration of acceptance. The Contractor shall submit to the Engineer letters from U.S. based manufacturers documenting the excessive lead time.

Each optical fiber shall be glass and consist of a doped silica core surrounded by concentric silica cladding. All fibers shall be sufficiently free of surface imperfections and inclusions to meet the optical, mechanical and environmental requirements as specified within the Specifications. The coating shall be dual layered, ultraviolet (UV) cured acrylate. The coating shall be mechanically or chemically strippable without damaging the fiber. The required optical fiber grade shall reflect the maximum individual fiber attenuation, to guarantee the required performance of every fiber in the cable. Only single-mode all-dielectric fiber optic cables shall be used unless otherwise specified on the Plans. Optical fiber shall also meet the following criteria: PARAMETERS SINGLE-MODE VALUES Standards International Telecommunication Union (ITU)-T G.652.D International Electrotechnical Commission (IEC) 60793-2-50 Type B.1.3 Dispersion unshifted single-mode TIA 492-CAAB Type Step Index Core Diameter 8.3 µm (Nominal) Proof Tensile Test 100 kpsi {0.69 GN/m² or 0.69 GPa} Operating Temperature Range -40°F to 158°F {-40°C to 70°C} OPTICAL SPECIFICATIONS Attenuation (Maximum): @ 1310 nm-1625 nm (SM) @ 1550 nm (SM)

≤ 0.4 dB/km ≤ 0.3 dB/km Cut-Off Wavelength (λcc) λcc ≤ 1260 nm Mode Field Diameter (MFD): Nominal range @ 1310 nm

(8.6 µm – 9.5 µm) ± 0.6 µm Dispersion (Maximum): @ 1285 nm – 1330 nm @ 1550 nm

≤ 3.3 ps/(nm•km) ≤ 18 ps/(nm•km) Chromatic Dispersion, Zero Dispersion (λo) 1300 nm ≤ λo ≤ 1324 nm Wavelength Zero Dispersion Slope (So) So ≤ 0.092 ps/(nm²•km) GLASS GEOMETRY Cladding Diameter 125.0 µm ± 1.0 µm Core to Cladding Offset ≤ 0.8 µm Cladding Non-Circularity ≤ 1.0% COATING GEOMETRY Coating Diameter (OSP) 250 µm ± 15 µm

Cable markings shall be indent printing with white characters on the outer jacket. The characters shall be approximately 3 mm in height and spaced to produce good legibility. The cable

Fiber Optic Cable

shall be sequentially marked at 3 feet {0.91 m} intervals maximum. The length marks will not run through zero on any length of cable. The leng th markings are to be in feet. The maximum variance between the actual cable length and marked cable length is ± 1%. Each length of cable shall be marked with the following legend: “(Mfg. name) OPTICAL CABLE (Cable Description) (Mfg. month and year) (telecommunications headset symbol) ALDOT XXXF” where “XXX” denotes the number of fibers within the cable.

Note: Special marking of “ALDOT XXXF” is not required if the individual reel cable length is less than 6,300 feet {1,920 meters}.

No re-marking of cables is allowed without prior approval by the Engineer.

Buffer tubes and individual optical fibers within those buffer tubes shall adhere to ANSI/TIA/EIA- 598-C “Optical Fiber Cable Color Coding” as follows: 1 = Blue (BL) 2 = Orange (OR) 3 = Green (GR) 4 = Brown (BR) 5 = Slate (SL) 6 = White (WH) 7 = Red (RD) 8 = Black (BK) 9 = Yellow (YL) 10 = Violet (VI) 11 = Rose (RS) 12 = Aqua (AQ) where legend for above is: “fiber/tube number = color code (abbreviation)”. For cables containing more than 12 buffer tubes, use the color code shown above for tubes 1 through 12, and use stripes or tracers in conjunction with the standard color code for tubes 13 through 24. The colors shall be stable during temperature cycling and not subject to fading or smearing onto each other or into the gel-filling/water blocking material. Ensure colors do not cause fibers to stick together.

All optical fiber cables shall be outside plant cable and loose tube. Fiber cable shall contain the fiber count as shown on the Plans with 6 or 12 fibers per buffer tube as allowed for cable type (trunk, drop, etc.). A layer of aramid yarns, along with a t least one ripcord, shall be applied over the buffer tube bundle, producing the cable core. The cable core interstices and buffer tubes interstices shall be protected from water intrusion by water blocking material. Water blocking material shall be gel or dry; and, be designed to prevent the ingress of water. Water blocking material shall be non -hygroscopic, non -nutritive to fungus, electrically non-conductive, and homogeneous. Water blocking material shall also be free from dirt and foreign matter and readily removable with conventional non-toxic solvents. Cable jacket shall be a circular extrusion medium density polyethylene (MDPE) of 1.3 mm minimum thickness with no bubbles or blisters and shall be suited for conduit, duct, direct burial and aerial lashing. Jacketing material shall be directly applied over the central tensile strength members and water blocking material. The buffer tubes shall have a 2.5 mm outer diameter. Each tube shall have water blocking

material as specified above. Buffer tubes shall be wrapped around the central strength member in

reverse oscillation manner (a.k.a. S-Z spanning) so that the cable may be broken into and fibers

selectively broken out without having to cut the entire cable.

The cable shall be packaged wound on spools or reels. Each package shall contain only one

continuous length of cable. The packaging shall be as to prevent damage to the cable during shipping

and handling.

When the cable length creates a reel weight exceeding 800 lbs. {362.87 kg}, the manufacturer

shall be required to supply the cable on a large wooden reel and the reel shall be lagged with wooden

staves. The cable shall be covered with a thermal wrap. The outer end of the cable shall be securely

fastened to the reel head so as to prevent the cable from becoming loose in transit. The inner end

of the cable shall project a minimum of 10 feet {3.0 m} into a slot in the side of the reel or into

housing on the inner slot of the drum, in such a manner to make it available for testing. An arbor

hole of 1.5 inch {3.8 cm} minimum is required.

Test tails shall be at least 6.5 feet {2.0 m} and accessible from the outside of the reel. The inner

end shall be fastened so as to prevent the cable from becoming loose during shipping and installation.

Fiber Optic Cable

855

End seals shall be applied to each end of the cable to prevent moisture from entering the cable. Reels

shall be permanently marked with an identification number that can be used by the manufacturer to

trace the manufacturing history of the cable and the fiber.

Each reel shall be plainly marked to indicate the direction in which it should be rolled to prevent

loosening of the cable on the reel.

Documentation shall accompany each reel. The documentation shall indicate the attenuation of

each cable fiber in dB/km. The attenuation shall be measured at 1310 nm and 1550 nm for single-

mode.

Each reel shall have stenciled on the reel or a weatherproof reel tag firmly attached identifying

(at a minimum) the following:

• Name of Cable Manufacturer and Address

• Type Fiber Optic Cable

• Number of Fibers

• Length of Cable (ft/m)

• Reel Number

• Direction of Rotation

• “DO NOT LAY REEL ON SIDE”

A cable reel data sheet (a.k.a. manufacturer’s certified test report) shall accompany each cable

reel. The following information (at a minimum) shall be included:

• Name of Cable Manufacturer and Address

• Cable Number

• Reel Number

• Year of Manufacture

• Factory Order Number

• Customer Purchase Order Number

• Type Fiber Optic Cable

• Number of Fibers

• Measured Attenuation of Each Fiber (for lengths > 1000 m)

• Ordered Length (ft/m)

• Actual Shipped Length (ft/m)

This cable reel tag and data sheet are to be delivered to the Engineer as defined in the

Construction Section of this Specification.

All optical fiber trunk cables shall be outdoor rated cable (non-plenum) and loose tube. Trunk

cable shall contain the fiber count with 12 fibers per buffer tube as shown on the Plans.

Trunk fiber cable shall have a maximum pulling tension rating of 600 lbf {2700 N} or as

recommended by the manufacturer. Trunk cable must be able to withstand a minimum bending radius

of 10 times the cable diameter under no load and 20 times the cable diameter under load without

affecting the performance characteristics of the cable. Maximum pulling tension shall be 600 lbf {2700

N} during installation (short-term) and 180 lbf {810 N} long-term installed or as recommended by

manufacturer.

All optical fiber drop cables shall be outdoor rated cable (non-plenum) and loose tube. Fiber drop

cable shall contain the fiber count of 6 or 12 fibers per buffer tube as shown on the Plans.

In addition to the GENERAL requirements previously listed, each drop cable shall also meet the

requirements of ANSI/ICEAS-110-717, “Standard for Optical Fiber Drop Cable” (a.k.a. ANSI/TIA-

472F000).

Drop cable shall be sheathed with flame retardant polyvinyl chloride (PVC) and shall be an all-

dielectric manufacturing. The nominal jacket thickness shall be 1.4 mm and shall be applied directly

over the tensile strength member(s). The PVC jacket shall contain carbon black to provide ultra-violet

the NEC Section 770 for Non-Plenum Applications – Applicable Flame Tests: ANSI/UL 1666 and shall be

rated OFNR (optical fiber nonconductive riser).

893.03Fiber Distribution Units (FDU), Connectors, and Fan-Out Kit

856

Drop cable with 12 fibers or less shall be a single buffer tube with a maximum pulling tension

rating of 300 lbf {1350 N} during installation (short-term) and 90 lbf {400 N} long-term installed or as

recommended by manufacturer. Drop cable with more than 12 fibers shall have multiple buffer tubes

of 12 with a maximum pulling tension of 600 lbf {2700 N} during installation (short-term) and 180 lbf

{810 N} long-term installed. The buffer tubes shall have a 2.5 mm outer diameter. Each tube shall be

dry with either water blocking yarn, powder, or liner. Buffer tubes shall be wrapped around the central

strength member in a reverse oscillation manner (a.k.a. S-Z spanning) so that the cable may be broken

into and fibers selectively broken out without having to cut the entire cable.

All optical fiber armored cables shall be outdoor rated cable (non-plenum) and loose tube.

Armored cable shall contain the fiber count with 12 fibers per buffer tube as shown on the Plans.

Armored cable shall also contain a corrugated steel tape armor located between two MDPE jackets

(i.e., double-jacketed).

Armored fiber cable shall have a maximum pulling tension rating of 600 lbf {2700 N} or as

recommended by manufacturer. Armored cable must be able to withstand a minimum bending radius

of 10 times the cable diameter under no load and 20 times cable diameter under load without affecting

the performance characteristics of the cable. Maximum pulling tension shall be 600 lbf {2700 N} during

installation (short-term) and 180 lbf {810 N} long-term installed or as recommended by manufacturer.

Armored fiber optic cable with messenger wire manufactured within the cable shall NOT be

allowed for aerial cable. Similarly, no metallic central strength member serving as a messenger wire

shall be allowed for aerial cable. Aerial fiber optic cable may be armored or not armored.

Aerial Slack Bracket (a.k.a. snowshoes) shall be used for the management of aerial fiber optic

cable slack storage loops (a.k.a. maintenance coils). The aerial slack bracket shall protect the

minimum bending radius of the fiber optic cable.

The aerial slack bracket shall be nonconductive, polymer based, ultra-violet (UV) treated plastic,

rated twenty-years in the outdoor environment. Stainless steel hardware shall be used for attaching

this aerial slack bracket to the messenger wire. Predrilled holes shall be included along the bracket

for securing the fiber optic cable to the bracket.

All fiber optic cabling shall be labeled with a unique identification in a permanent and consistent

manner that is approved by the Engineer prior to installing fiber cable. The Engineer shall provide

the Contractor with the identifications to be used.

All fiber cable tags shall be of a material designed for long term permanent labeling of fiber

optic cables and shall be marked with permanent ink on non-metal types or embossed lettering on

metal tags. Metal tags shall be manufactured of stainless steel. Non-metallic tags shall be

nonconductive, polymer based, ultra-violet (UV) resistant, rated twenty-years in the outdoor

environment, and durable to extreme weather conditions. Cable tag and label materials shall be

approved by the Engineer.

Aerial fiber optic cable tag shall be nonconductive, polymer based, ultra-violet (UV) resistant,

rated twenty-years in the outdoor environment, and durable to extreme weather conditions.

Aerially-mounted fiber optic cable shall be marked with a yellow retroreflective tag with black

print containing the graphic system as shown on the Plans. The tags shall make the cable identifiable

as ALDOT fiber when viewed from ground level. The black on yellow graphic system shall not fade,

peel or chip.

See corresponding Construction Section for fiber optic cable label “proof check” sample and

approval requirements.

Fiber Distribution Units (FDU), Connectors, and Fan-Out Kit

The following material specifications covers Fiber Distribution hardware requirements from the

headend and hub, primary fiber distribution unit (PFDU) to secondary fiber distribution unit (SFDU)

Fiber Distribution Units (FDU), Connectors, and Fan-Out Kit

857

which are utilized within the individual cabinets and communication closets within buildings or within

hub buildings.

Fiber Optic Connectors shall be Type SC for single-mode applications unless specified otherwise

on the Plans or in these Specifications; and, shall meet the requirements of TIA/EIA-604, “Fiber Optic

Connector Intermateability Standards (FOCIS)” along with the associated test document addendum

FOCUS-3. Fiber optic connectors shall be Telcordia GR-326 certified and must meet applicable

TIA/EIA-4750000, IEC 61754, and JIS C5973 standards.

Connector and adapter plug bodies for single-mode fiber optic cable shall be blue in accordance

with color coding requirements of TIA/EIA-568-C.3 “Optical Fiber Cabling Components Standard”.

Fiber optic connectors shall not exceed 0.50 dB insertion loss per connector pair across a single

fiber regardless of whether field or factory, mechanical or heat cure epoxy terminated.

Primary Fiber Distribution Unit (PFDU) shall be utilized within the primary hub and headend facility

that is in support of the hub distribution system and the primary network. This point in the system

allows the distribution of signals directly to the network electronics via a jumper/patchcord cable

management system.

patchcord method of connectivity to other outbound cables and network electronics. PFDU

may also use pre-terminated factory connector build-outs (Pre-terminated Connector

Assemblies) with adapter ports preinstalled as an alternative method.

typical dimension of approximately 8 inches {203.2 mm} high (i.e., 4-U), by 19 inches {482.6

mm} wide by 18 inches {457.2 mm} deep.

splices.

Secondary Fiber Distribution Unit (SFDU) shall be wall mounted or 1U as required by cabinet for

device to be installed. Mounting shall use brackets and/or backer plates; no exterior wall penetrations

shall be allowed. SFDU shall be small enough to fit in limited area or wall space.

Assemblies) with adapter ports preinstalled.

Fan-Out Kits shall be used on all loose tube and central core fiber optic cable at each terminal end

when cable end is to be terminated. The fan-out kit can be an individual buffer tube kit, a multiple

buffer tube kit, or spider design kit. All fan-out kits shall have a minimum of 24 inch {61 cm} of tubing,

measured from cable end to the back of the connector body, covering each fiber when installation is

complete. Fan-out kits shall be rated for outdoor use within a temperature range of -40°F to 158°F {-

40°C to 70°C}.

Only one type of fan-out kit may be used on any one project.

Heat Cure Epoxy Connectors shall be ceramic ferrule, nickel plated zinc connector body (composite

connector body for corrosive atmospheres), 125μm diameter fiber, with the fiber permanently secured

893.04Network Devices

858

within the ferrule with epoxy (heat epoxy cured or air dried) as specified by the connector and/or the

epoxy manufacturer. The operating temperature shall be between 40°F to 167°F {40°C to 75°C}.

Mechanical Connectors shall be high-precision ceramic ferrule connectors with guaranteed

insertion loss 0.2 dB typical/0.5 dB maximum per connector pair for single-mode. Cleaver, mating tool

and mechanical connector shall be of the same manufacturer and specified to be compatible. Mating

tool to install the mechanical connector shall be handheld operated and provide immediate verification

that proper mating of the mechanical connector was successful or unsuccessful. Cleaver shall include

dual stage clamping which holds the fiber (1st stage) before cleaving (2nd stage). Cleaver shall use a

diamond blade for high-precision. Mechanical connectors shall not require epoxy or post installation

polishing.

Pre-terminated Connector Assemblies (i.e., Factory Connector Build-Outs, or pigtails) consist of

fiber optic cables with factory-installed connectors on one end of the cable and an un-terminated

optical fiber on the other. Pre-terminated Connector Assemblies shall meet the optical fiber and cable

requirements within this Specification. The connectors on the factory connector build-out shall be

heat cured epoxy connectors meeting specified requirements. Pre-terminated Connector Assemblies

shall be installed with fusion splices; and, shall be equivalent in length of the fan-out field termination

approach. Splices shall be housed in the appropriate fiber distribution equipment and installed using

heat shrink protectors. Fusion splice shall meet specified requirements for maximum attenuation loss.

Pre-terminated Connector Assemblies’ optical fiber shall match the mode field diameter (MFD) of

the fiber optic cable to which it will be spliced. MFD must be matched to minimize dB losses between

optical fibers.

Fiber optic Patch Cable assembly (a.k.a. patchcords or jumpers) shall be all-dielectric, single-

mode fiber design with the appropriate termination as required herein and as shown on the Plans. The

fiber optic cable and optical fiber shall meet the General requirements of Sub-Article 893.02(a). Patch

cable shall be yellow in color (single-mode) and shall incorporate tight buffered fiber, aramid yarn

strength member and an outer jacket. Fiber patch cables shall be pre-connectorized; and shall meet

the connector requirements herein and as shown on the Plans.

All single-mode duplex patch cables, zip cord or round, shall have connector boots of two (2)

colors: white or off-white for one leg of the duplex cord (non-printed zip leg) and blue for the opposite

leg (printed zip leg) of the duplex cord in accordance with TIA/EIA-568.3-D “Optical Fiber Cabling

Components Standard”.

All connectors used shall have an operating temperature range of -40°F to 158°F {-40°C to 70°C}.

Each connector is to have a minimum of a 1.0 inch {25 mm} strain relief boot and shall match the patch

panel and/or fiber equipment being connected without adaptors.

Each assembly shall be fully tested per the Fiber Optic Association (FOA) Standard FOA-2 to verify

that the patch cable does not exceed the acceptable loss of the connector and fiber cable. Each

assembly shall be individually packaged within a plastic bag that shall have the submitted

manufacturer’s part number marked clearly on the outside of bag. Each patch cable shall be labeled

as directed by the Engineer.

Network Devices

The following Network Device material specifications covers equipment requirements for ethernet

network elements (links, nodes, switches, etc.) which will provide the ITS communications network

from the Regional/Area Traffic Management Center to the ITS field components and other stakeholders.

These Network Devices will typically reside within the individual cabinets and communication closets

within buildings or within hub buildings.

Network Devices and components shall be provided and installed at all locations as shown on the

Plans. Furnished materials and equipment shall be new, free from defects, and manufactured using

the highest quality, commercially available components and techniques to assure high reliability and

minimum maintenance. Hardware and fittings shall be galvanized, stainless steel or other non-corrosive

metal.

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859

The Managed Ethernet Switch (MES) shall be equipped to operate at Fast Ethernet (10/100 Mbps)

data rates for local devices and gigabit Ethernet rates for all uplink ports. MES shall be metal housing

construction and have diagnostic light emitting diodes (LED), including link, TX, RX, and power LEDs.

The Contractor shall provide items such as cables, connectors, software, modules, Small Form

Pluggable (SFP) optics, etc. which are necessary for a complete and operational system. MES shall

have an operating temperature range of -40°F to 185°F {-40°C to 85°C} and an operating ambient

humidity of 5% - 95% (non-condensing), without fans. Materials furnished, assembled, fabricated,

and/or installed under this item shall be compliant with the Institute of Electrical and Electronics

Engineers (IEEE) 802.3 Ethernet standards, shall be manufactured to ISO 9001 Quality Assurance

specifications, and shall be Engineer reviewed and accepted. MES shall comply with the EIA/TIA

Ethernet data communication requirements using single-mode fiber optic transmission medium and

Category 6 copper transmission medium. The MES shall have a minimum Mean Time Between Failures

Prediction Procedure for Electronic Equipment” handbook/standard.

Equipment shall be new and corrosion resistant. Power supply shall accept 120 Vac and as

defined within the specific MES Layer power requirements. MES shall have the following features:

DESCRIPTION SPECIFICATION

Ethernet Connectivity 1000 Mbps

Ingress Protection IP30

Switching Method Store & Forward

Priority Queues 4

Simultaneous Virtual Local Area Networks (VLAN) 255

VLAN ID Range 1 - 4000

Internet Group Management Protocol (IGMP) multicast groups 250

Port Rate Limiting 128 kbps - 8 Mbps

No head of line blocking Yes

MES shall comply with all applicable IEEE network standards for Ethernet communications,

including but not limited to:

802.3-10 BaseT 802.1d - Spanning Tree Protocol

802.3u-100 BaseTX, 100 BaseFX 802.1p - Class of Service

802.3x-Flow Control 802.1Q - VLAN Tagging

802.3z-1000 BaseLX 802.1w - Rapid Spanning Tree Protocol

802.3ab-1000 BaseTX 802.1x - Port Based Network Access Control

802.3ad-Link Aggregation 802.1Q-2005 - Multiple Spanning Tree Protocol

(MSTP)

802.1d-Media Access Control (MAC) Bridges 802.3ae-2002* – 10 Gigabit Ethernet (10GBase)

(* where indicated by network device Type)

MES shall support Layer 2 management features and some higher-level multicast data

transmission and routing features. These features shall include, but not be limited to:

Network Devices

860

Hyper Text Transfer Protocol Secure (HTTPS)

graphical web-based, SSL (128-bit encryption)

Secure Shell (SSH)

Simple Network Management Protocol (SNMP)

v1, v2c, v3 (56-bit encryption)

Role Based Access Control

SSH/Secure File Transfer Protocol (SFTP) (128-

bit encryption)

Remote Monitoring (RMON)

Command Line Interface (CLI) Remote Syslog

Rivest-Shamir-Adleman (RSA) Key Management

(1024 bit key)

Rich set of diagnostics with logging and

alarms

RADIUS client, Point to Point Protocol (PPP)

All MES shall meet the following power and environmental requirements:

Fully integrated power supply internal to

switch

UL 60950 safety approved with operating

temperature tested at 185°F {85°C} for 16

hours

Universal high-voltage range:

88 - 830 Vdc or 85 - 264 Vac

Terminal blocks for reliable maintenance

free connections

The ports for the MES shall meet or exceed the following specifications:

SFP Pluggable Optics Long haul optics allow Gigabit distances up

to 43.5 mi {70 km}

Two transmit and receive ports Bi-directional single strand fiber support

All MES shall pass or exceed the following approvals:

Hazardous Locations: Class 1, Division 2 Emissions: Federal Communications

Commission (FCC) Part 15 (Class A),

EN55022 (CISPR22 Class A)

ISO: Designed and manufactured using an ISO

9001 certified quality program

Safety: cCSAus (Compliant with CSA C22.2

No. 60950, UL 60950, EN60950)

European Conformity (CE) Marking Laser Eye Safety (US Food and Drug

Administration (FDA)/Center for Disease

and Radiological Health (CDRH)): Complies

with 21 Code of Federal Regulation (CFR)

Ch.1, Subchapter J, Part 1040

MES shall be in compliance with the following standards, to reduce potential interference

with/by other devices when in close proximity:

IEC 61000-6-2 Industrial (Generic) IEEE 1613 Electric Utility Substations

IEC 61800-3 Industrial (Variable Speed Drive

Systems)

NEMA TS2 Traffic Control Equipment

IEC 61850-3 Electric Utility Substations Failsafe Output Relay: for critical failure or

error alarming

MES shall have the following features, to ensure only technicians authorized by ALDOT can

operate the switch:

Network Devices

861

Multi-level user passwords VLAN (802.1Q) to segregate and secure

network traffic

SSH/SSL: 128 bits RADIUS centralized password management

Enable/disable ports, MAC based port security SNMP v3 authentication and 56-bit

encryption

Port based network access control (802.1x) (No Telnet or unsecure web-based access is

to be allowed.)

MES shall have the following protocols:

Authentication Dynamic Host Configuration Protocol (DHCP)

Agent (Option 82 Capable)

Optical fiber (link) ports shall operate at 1310 or 1550 nanometers in single-mode. The optical

ports are to be Type ST, SC, LC, or FC only, as shown on the Plans. Mechanical transfer registered

jack (MTRJ) type connectors shall not be allowed. Each optical port shall support: paired fiber

communications (i.e., one fiber will transmit (TX) data and one fiber will receive (RX) data); or, bi-

directional TX and RX over one fiber. The optical ports shall have an optical power budget of at least

15 dB for 10K optics. MES shall have a minimum of two optical SFP transceiver ports.

Copper ports shall use 8P8C (a.k.a. type RJ45 “unkeyed”) modular jacks and shall auto-negotiate

speed (i.e., 10/100/1000 Base at a minimum) and duplex (i.e., full or half). These 10/100/1000

BaseTX ports shall meet the requirements detailed in this Section and shall be compliant with the

IEEE 802.3 standard pin outs.

Category 5E unshielded twisted pair/shielded twisted pair network cables shall be compliant

with the TIA/EIA-568-A standard. Category 6 or Category 6A unshielded twisted pair/shielded twisted

pair network cables shall be compliant with the TIA/EIA-568-C.2 standard. When installed outdoors,

the above category (CAT) cables shall be outdoor rated. Color(s) of CAT cable jackets shall be as

approved by the ALDOT Region Transportation System Management and Operations (TSM&O) Engineer.

Core Managed Ethernet Switches (CMES) are typically installed in the Department Traffic

Management Center (TMC), office buildings, or hub cabinets/buildings to support the wide area

network (WAN). CMES shall be Layer 3 (Core), with capabilities including but not limited to:

architecture standardization, open connectivity (i.e., interoperability), bandwidth management, rate

limiting, security filtering, and general integration management of an advanced Ethernet switching

architecture. CMES shall have the following additional features:

Network Devices

862

DESCRIPTION SPECIFICATION

Mounting Rack or Panel mountable

Switching Latency ≤ 10.5 μs

Switching Bandwidth ≥ 88 Gbps

MAC addresses ≥ 98304

MAC address table size ≥ 64 kbytes

Frame buffer memory ≥ 2 Mbit

Network Management NETCONF

Management Tools Loopback diagnostic tests

Raw and interpreted real timeline traces

Power Supply Power supply shall be modular and hot swappable

Fully integrated, dual-redundant power supplies

Ethernet Ports Fiber Optical (SFP) Gigabit Ethernet Ports minimum:

2 each – 10GBase, 18 each – 1000 BaseTX

Copper/RJ45 Fast Ethernet Ports (10/100/1000 BaseTX)

minimum: 16 each

Optical SFP Transceivers Provide SFP transceiver modules (Type LC) with quantity

minimums as follows:

Serial Ports Fully compliant EIA/TIA RS-485, RS-422, RS-232 serial ports

Distributed Network Protocol (DNP)

MODBUS

Raw socket mode allows conversion of any serial protocol

Layer 3 Protocols Multilink PPP RFC 1990

GOOSE messaging support

IP Routing: OSPF, BGP, RIPv1, RIPv2, VRRP

Traffic Control, Network Time Protocol (NTP) Server,

Internet Protocol (IP) Multicast Routing

PIM SM

PPP RFC 1661, 1332, 1321, 1334, PAP, CHAP

Frame Relay RFC 1490 or RFC 1294

WAN

Aggregation Managed Ethernet Switch (AMES) are typically installed in hub cabinets to support

the communications WAN. AMES shall have Layer 2 and/or Layer 3 capabilities (aggregate

switch/router) as defined within this Specification. AMES shall also include but not be limited to:

architecture standardization, open connectivity (i.e., interoperability), bandwidth management, rate

limiting, security filtering, and general integration management of an advanced Ethernet switching

architecture. AMES shall have the following additional features:

Network Devices

863

DESCRIPTION SPECIFICATION

Mounting Rack Mountable

Switching Latency ≤ 8 μs

Switching Bandwidth ≥ 10 Gbps

MAC address table size ≥ 64 kbytes

Frame buffer memory ≥ 1 Mbit

Network Management NETCONF

Management Tools Loopback diagnostic tests

Raw and interpreted real timeline traces

Power Supply Power supply shall be modular and hot swappable

Fully integrated, dual-redundant (optional) power supplies

Ethernet Ports Fiber Optical (SFP) Gigabit Ethernet Ports (1000 BaseX) minimum:

6 each

Copper/RJ45 Fast Ethernet Ports (10/100/1000 BaseTX) minimum:

6 each

Optical SFP Transceivers Provide SFP transceiver modules (Type LC) with quantity

minimums as follows:

Serial Ports Fully compliant EIA/TIA RS-485, RS-422, RS-232 serial ports

DNP

MODBUS

Raw socket mode allows conversion of any serial protocol

Layer 3 Protocols Multilink PPP RFC 1990

GOOSE messaging support

IP Routing: OSPF, BGP, RIPv1, RIPv2, VRRP

Traffic Control, NTP Server, IP Multicast Routing

PIM SM

PPP RFC 1661, 1332, 1321, 1334, PAP, CHAP

Frame Relay RFC 1490 or RFC 1294

WAN

Frame Relay Support ISO and ITU compliant, network certified

ANSI T1.617 Annex D, Q.933 or Local Management Interface (LMI)

Local Signaling

WAN Port Options T1/E1 (channelized/unchannelized)

E1 75 ohms (Ω) via BNC

Cellular (HSPA/EVDO)

DDS

Field Managed Ethernet Switch (FMES) are typically installed in the ITS Cabinets to support the

ITS field equipment (e.g. cameras, VDS, and DMS). FEMS shall be Layer 2 capable. FMES shall have

the following additional features:

DESCRIPTION SPECIFICATION

Mounting DIN Rail or Panel mountable

Switching Latency ≤ 8 μs

Switching Bandwidth ≥ 5.6 Gbps

MAC address table size ≥ 32 kbytes

Frame buffer memory ≥ 1 Mbit

Network Devices

864

Electromagnetic

Interference (EMI)

Immunity and

Environmental

Compliance

BS EN 50121-4 “Railway Applications – Electromagnetic

Compatibility – Part 4: Emission and Immunity of the

Signaling and Telecommunications Apparatus”

Management Tools Telnet (not for remote control), Command Line Interface (CLI)

management interfaces

Ethernet Ports Fiber Optical (SFP) Gigabit Ethernet Ports (1000 BaseX) minimum:

2 each

Copper/RJ45 Fast Ethernet Ports (10/100/1000 BaseTX)

minimum: 8 each

Optical SFP Transceivers Provide SFP transceiver modules (Type LC) with quantity

minimums as follows:

Wireless Managed Ethernet Switch is network switch that is to be installed in field level device

cabinets to support the communications network at remote areas where physically hardwired

communications infrastructure is not available. The WMES shall provide wireless 802.11b/g 2.4 GHz

connectivity at transmission rates up to 54 Mbps from the remote ITS device installation location to

the ITS network trunk interconnection point. WMES shall be Layer 2 capable. WMES shall include

the following additional features:

DESCRIPTION SPECIFICATION

Mounting DIN Rail or Panel mountable

Switching Latency ≤ 8 μs

Switching Bandwidth ≥ 1.8 Gbps

MAC address table size ≥ 16 kbytes

Frame buffer memory ≥ 1 Mbit

Electromagnetic

Interference (EMI)

Immunity and

Environmental

Compliance

BS EN 50121-4 “Railway Applications – Electromagnetic

Compatibility – Part 4: Emission and Immunity of the

Signaling and Telecommunications Apparatus”

Management Tools Telnet (not for remote control),

CLI management interfaces

Ethernet Ports Copper/RJ45 Fast Ethernet Ports (10/100 BaseTX) minimum: 8

each

The Licensed Wireless Network Device and components shall be a microwave system utilizing a

Federal Communications Commission (FCC) approved 6 to 40 GHz broadband communication package

to be used for the backbone communications as shown on the Plans. The microwave shall be a split

system consisting of an Indoor Unit (IDU) modem and an Outdoor Unit (ODU) radio that is mounted

directly to the antenna. The IDU shall be installed within an environmentally controlled environment

(cabinet or inside a building).

The microwave and all appurtenances shall be FCC approved under FCC Part 101 and shall have

an equipment authorization as part of Article 15. The Contractor shall obtain the license in ALDOT’s

name and bear all cost associated with the license as part of payment for the licensed wireless link.

(See additional Contractor responsibilities within the respective Construction Section of this

Specification.)

The wireless transceiver assembly shall operate as point-to-point or point-to-multipoint and at

the frequency/frequencies as shown on the Plans. The equipment used shall be designed to protect

Network Devices

865

personnel from exposure to high voltages during equipment operation, adjustments, and

maintenance. Radios used for a link(s) shall be of the same brand to accommodate the sharing of the

IDU for sparring.

The licensed wireless equipment shall meet the following requirements:

DESCRIPTION SPECIFICATION

Power and Connectors 120 Vac or 48 Vdc

I/O Interface 4 each - GigE ports

(2 each - 10/100/1000 BaseT and

2 each - SFP Optical 1000 BaseX, minimum)

Radio:

Annual Availability

Frequency Range

99.999%

FCC approved licensed frequency for the project

application

Radio Modulation Hitless and jitterless adaptive modulation with

conservative and aggressive configurations

Data Throughput Performance 1000 Mbps or greater true usable throughput as tested

by bandwidth speed test unless specified otherwise

on the Plans;

1000 Mbps performance shall be under all

environmental conditions, times of day, and

interference and not be subject to fluctuation

below minimum performance standards

Encryption Hardware based Advanced Encryption Standard (AES)

encryption

Operating Temperature:

IDU

ODU

23°F to 131°F {-5°C to 55°C}

-27°F to 131°F {-33°C to 55°C}

Microwave Antenna High performance antenna with radome at the sizes

indicated on the Plans, includes a seven-year

manufacturer warranty

Cabling LMR400 or equivalent or 0.5 in. Heliax Cable

Antenna mounts shall prevent movement in high winds. Mounts shall be accepted by the

Engineer prior to ordering.

Unlicensed Wireless Network Device and components shall be a license-exempt Ethernet

microwave system which utilizes 2.4 GHz or 5 GHz frequencies. These unlicensed frequencies have

no regulating body and will receive no help from authorities regarding interference. Unlicensed

Wireless Network Device and components shall be installed at the frequency specified on the Plans

and as accepted by the Engineer.

The wireless unlicensed Ethernet radio system shall meet the following requirements:

210.

5.875GHz.

security features available. The radio shall be compatible with high bandwidth, long range

industrial application.

on project bandwidth requirements and acceptance by the Engineer.

Network Devices

866

10/100/1000 Ethernet.

WPA, WPA2 [including AES, Cryptography (CCMP), Temporal Key Integrity Protocol (TKIP)

(not allowed), and MAC/RADIUS Authentication].

the maximum link performance.

SNMP, VLAN, Routing, and Quality of Service (QOS) (802.11e/Wi-Fi Multimedia (WMM)), and

Multicasting.

complete software toolset to assist in design, configuring, monitoring and optimizing the

wireless network.

performance testing over operating temperatures of -22°F to 140°F {-30°C to 60°C}.

protection.

is the Department’s preferred method], SNMP, and IP auto discovery; Noise level graph;

LAN statics; WLAN statics; Error report; Uptime.

service for a period of two (2) years from the date of installation.

The Cellular Modem system shall consist of these major components: cellular modem and

antenna.

The cellular modem shall be a gateway type interface and include as a minimum the following:

Long-Term Evolution (LTE) 1900 MHz (Band 2); Advanced Wireless Services (AWS), 1700

MHz (Band 4); 850 MHz (Band 5); 700 MHz (Band 13); 700 MHz

(Band 17); 1900 MHz (Band 25)

Wideband Code-Division

Multiple Access (W-CDMA)

2100 MHz (Band 1), 1900 MHz (Band 2), AWS, 1700 MHz (Band

4), 850 MHz (Band 5), 900 MHz (Band 8)

ii. Up to 5 concurrent tunnels

iii. Port Filtering

ii. Network Address Translation (NAT)

iii. Dynamic DNS

ii. DMZ

iii. MAC Address Filtering

iv. Inbound and outbound port filtering

ii. USB Micro-B Connector

iii. RS-232, DE-9 connector

iv. I/O: 5 each Digital, 4 each Analog, 2 each Relay

Network Devices

867

ii. HTTPS

iii. National Marine Electric Association (NMEA)

iv. User Data Protocol (UDP)/IP

vi. Trimble ASCII Interface Protocol (TAIP)

vii. DHCP

viii. Short Message Service (SMS)

ix. GPS

ii. Activity

iii. GPS

iv. Signal

vi. Power

Primary 50 ohm (Ω), Threaded Neill-Concelman (TNC)

GPS 50 ohm (Ω), SubMiniature version A (SMA)

Rx Diversity 50 ohm (Ω), SMA

ii. External Subscriber Identification Module (SIM) card access

iii. Low Power Mode

iv. Remote management and configuration

vi. Packet Level Diagnostics

ii. MIL-STD-810G Certified

ii. Storage Temperature Range: -40°F to 185°F {-40°C to 85°C}

Software Management shall include remote management and configuration software and the

ability to remotely connect to the cellular modem using HTTPS or SSH. For communication purposes,

the cellular modem shall be addressable with an alphanumeric URL that is stored on the cellular

modem and a free dynamic DNS maintained by the modem manufacturer. The modem shall not

require a static IP address for communication purposes.

The Cellular Modem Antenna shall meet the following requirements as a minimum:

DESCRIPTION SPECIFICATION

Cellular/LTE rated for same frequencies as modem

GPS 1575.42 - 1602 MHz

Voltage Standing Wave Ratio (VSWR) < 2.0

Nominal Gain 698 - 896 MHz: 3 dBi;

1710 - 2620 MHz: 4 dBi

Nominal Impedance 50 ohm (Ω)

Polarization Right hand circular polarization

Terminations Cell (SMA male);

GPS (SMA male)

893.05Camera

868

The Contractor shall provide antenna assemblies complete with all necessary cabling hardware,

connectors, and appurtenances that is compatible with the above specified cellular modem as

specified within this Specification and as shown on the Plans.

Camera

Camera shall be a Closed-Circuit Television (CCTV) camera unit with the following functional

requirements:

provided as part of the current version of ALDOT’s Intelligent Transportation Systems

software applications and manufacturer’s software.

the GUI command to display the live video.

execution of the GUI command.

execution of the GUI command.

power supply, camera controller, and camera video encoder.

Manufacturer’s certification for each camera shall be provided to the Engineer prior to

installation to ensure each camera unit has been properly assembled, configured, factory adjusted

for color balance, lens tracking, and other configurable items have been set as specified within the

Specifications.

The CCTV camera shall meet the following minimum requirements:

DESCRIPTION SPECIFICATION

Camera Imaging Unit Digital signal processing (DSP) solid state design

Environmental Operating: -30°F to 165°F {-34°C to 74°C}, at Relative

Humidity 100%

NEMA TS2 rated for power, shock and vibration

Sustain winds of 110 mph with a 30% wind gusts factor

Remain attached to pole for winds up to 160 mph

Camera – Standard IEC 60529 rating of IP 67

Optics housing – shall be heated or pressurized with Dry

Nitrogen at 5 psi, Powder Coated Aluminum, and meet IEC

Standard 60529 rating of IP67

Image Stabilization Shall have automatic image stabilization

Resolution 1920 x 1080 (16:9 aspect ratio)

Lens Zoom 30X Optical, 4.4 mm to 129 mm (optical), aperture f1.6 (w)

f4.6 (t)

Digital Zoom 12x

Mode Day/Night switchover: day (color) / night (mono), manual or

auto

Horizontal Angle of View 63.4 degrees to 2.3 degrees

Focus Distance 0.7 inch (wide angle) to 29.5 inches (telephoto), minimum

Focus Automatic with manual override by remote command selection

Iris Automatic with manual override by remote command selection

Camera

869

DESCRIPTION SPECIFICATION

Sensitivity 0.4 lux at 1/30 sec. (color day); 0.025 lux at 1/2 sec. (color

day); 0.04 lux at 1/30 (mono night), 0.0025 lux at 1/2 sec

(mono night)

Video Protocols RSTP/Real-time Transport Protocol (RTP),

Real-Time Streaming Protocol (RTSP) Interleave, RTP Multicast

Open Network Video Interface Forum (ONVIF) ProfileS

NTCIP 1205 Version 2

Dynamic Range ≥ 80 db

Imager 1/2.8-inch Complementary metal-oxide semiconductor (CMOS)

sensor

Camera ID Programmable text up to 25 characters long, up to 8 elements,

American Standard Code for Information Interchange (ASCII)

set. Messages – ID characters are white with black border, text

height 4% image resolution minimum. Preset messages to

include: camera title, preset title, position, compass, sector

title, event title, date/time, and alarm/service message.

Bitmap (BMP) format logo display. Message/logo positioning

can be placed at left, right, top or bottom. ID message

capability shall be set, controlled, and edited by remote

commands and text entries.

Privacy Zones 8 programmable zones for video blanking

Digital Video 2 simultaneous, independently configurable video output

streams

Internal H.264 and MJPEG encoding in accordance with ITU-T

H.264 standard and ISO/IEC MPEG-4AVC standard (formally

ISO/IEC 14496- 10-MPEG-4 Part 10, Advanced Video Coding).

UDP. video multicasting.

Resolution – 1080p, 720p, D1, CIF or 16:9 accepted equiv.

Frame rate – 1 fps to 30 fps (National Television Standards

Committee (NTSC))

Video bandwidth – 256 kbps to 8 Mbps

Camera Housing Powder coated 6061-T6 aluminum (no polymer-based housings

allowed except window)

Sunshield

Dome distortion free clear polycarbonate

Stainless steel hardware, anti-seizing non-hardening compound

on threads

Mounts rated to meet camera weight and wind loads

For pressurized housings:

Gas-tight connectors; wiring sealed to connector using silicon

or potting compound

Schrader valve for pressurizing

Pressure relief valve

Fixed Camera shall be a Closed-Circuit Television (CCTV) camera unit with the following additional

requirements (minimum):

DESCRIPTION SPECIFICATION

Camera Power 12 Vdc or PoE (IEEE 802.3)

Automatic Gain Control managed, 0 to 36 dB

Electronic Shutter Automatic exposure period with manual override by remote

command, selection with a range of: 1/6 second to 1/8,000

second

Camera

870

Connections 1 each 8P8C (a.k.a. type RJ45 “unkeyed”) modular jack

(digital; NTSC or Phase Alternating Line (PAL))

Positioner Camera shall be a Closed-Circuit Television (CCTV) camera unit with the following

additional requirements (minimum):

command is being executed.

ranging from 0.1 to 40 degrees per second.

is being executed within the parameters of Type A and Type B cameras, respectively:

CAMERA TYPE VERTICAL RANGE

Type A Positioner Camera +90 degrees to -90 degrees

Type B Positioner Camera +36 degrees to -85 degrees

zoom.

command.

The Positioner Camera shall meet the following additional minimum requirements:

DESCRIPTION SPECIFICATION

Camera Power 115 Vac (plus or minus 10 percent), 50/60 Hz at cabinet.

Imaging unit and positioner operate at 24 Vac or 10-28 Vdc;

128W maximum consumption

Automatic Gain Control managed, 0 to 48 dB

Electronic Shutter Automatic exposure period with manual override by remote

command, selection with a range of: 1/2 second to 1/10,000

second

Presets Positioner - 32 pan, tilt, zoom, and focus presets

Control Addressable RS-422, compatible with device-controlling

software

Connections 8P8C (a.k.a. type RJ45 “unkeyed”) modular jack port

(digital; NTSC or PAL), BNC (analog). EIA RS-232/422/485

(control)

Pan, Tilt, Zoom (PTZ) Unit Weather proof

Gold plated electrical pin connectors

Corrosion resistant, maintenance free gears

Drive motors:

Instantaneous reversing

Overload protected

User defined (i.e., adjustable) pan/tilt (preset) speeds

Braking pan/tilt, non-drifting

Adjustable limit switches for pan/tilt

893.06Vehicle Detection Systems (VDS)

871

Dome Camera shall be a Closed-Circuit Television (CCTV) camera unit with the following additional

requirements (minimum):

command is being executed.

is being executed from +5 degrees horizontal to -90 degrees (straight down) at 0.1

degrees/sec to 45 degrees/sec.

zoom.

command.

The Dome Camera shall meet the following additional minimum requirements:

DESCRIPTION SPECIFICATION

Camera Power 115 Vac (plus or minus 10 percent), 50/60 Hz at cabinet.

Imaging unit & positioner operate at 24 Vac or 10-28 Vdc;

128W maximum consumption

Automatic Gain Control managed, 0 to 48 dB

Electronic Shutter Automatic exposure period with manual override by remote

command, selection with a range of: 1/2 second to 1/10,000

second

Presets 32 pan, tilt, zoom, and focus presets

Connections 8P8C (a.k.a. type RJ45 “unkeyed”) modular jack port

(digital; NTSC or PAL), EIA RS-232/422/485 (control)

Pan, Tilt, Zoom (PTZ) Unit Weatherproof

Gold plated electrical pin connectors

Corrosion resistant, maintenance free gears

Drive motors:

Instantaneous reversing

Overload protected

User defined (i.e., adjustable) pan/tilt (preset) speeds

Braking pan/tilt, non-drifting

Adjustable limit switches or stops for pan/tilt

Vehicle Detection Systems (VDS)

Provide a VDS that shall detect vehicle presence for the purpose of data collection to be used

for signal actuation, volume counts, and/or travel time calculations. The Contractor shall provide a

VDS utilizing one of the following technologies, as shown on the Plans:

A RVDS uses an FCC-certified, low-power microwave radar beam to detect vehicle presence

and generate volume, occupancy, and speed data.

Vehicle Detection Systems (VDS)

872

A MVDS uses a magnetic detector probe as a transducer that detects vehicle presence by

converting changes in the vertical component of the earth’s magnetic field to changes in inductance

to generate volume, occupancy, and speed data.

A BDCS uses a Bluetooth detector probe to detect vehicle presence through Bluetooth devices

to generate volume, travel time, and speed data.

The VDS shall generate and transmit traffic data either: (1) in serial format using an ALDOT

traffic signal cabinet TS1 or TS2 rack card or through a standard EIA RS-232 communication port; or,

interface to be used for installation shall be as shown on the Plans. The VDS shall be IP addressable

and be compatible with the network device requirements of this Specification. All device

communication addresses shall be user programmable.

The VDS shall support PPP, PMPP (i.e., polled protocols), and Ethernet protocols. The setup

program shall assign an IP address to each detection unit. The VDS shall respond to a polling request

from the TMC for traffic data. The vehicle detection unit shall respond with the accumulated traffic

parameter measurements from the period since the last request was issued.

The VDS shall store all system configuration and traffic parameter data within internal,

nonvolatile memory. The traffic data shall be capable of local and remote transfer by issuing requests

from a personal computer (PC) across the communication network connecting the detector and the

TMC operator workstation or other computer.

The VDS, with exception of Bluetooth, shall be provided with computer software that allows an

operator to program, operate, and read the current status of all system features and functions using

a laptop computer or remote TMC workstation.

The software application shall provide PC display of the detection zones and control of any

vehicle detector connected to the network.

The Contractor, using a locally connected laptop computer, shall conduct system setup,

calibration, diagnosis, and data retrieval operations. The detection system shall allow its

configuration data saved to a laptop computer, server, or TMC operator workstation, which can later

transfer the data back to the detection system for reloading.

The Contractor shall be able to use a laptop computer or TMC workstation to edit previously

defined detection configurations to permit adjustments to the detection zone’s size, placement and

sensitivity, and to reprogram the detector’s parameters.

The laptop computer and the detection system shall communicate when connected directly by

an EIA RS-232 cable or CAT 5E/6/6A cable via 8P8C (a.k.a. type RJ45 “unkeyed”) modular jack ports.

The software shall allow communication between multiple users and multiple field devices

concurrently across the same communication network. Once programmed, no periodic adjustments

shall be required to the detection zones unless physical roadway conditions change, such as lane shifts

or closures.

The VDS field hardware shall meet the requirements in the FCC’s 2005 CFR, Title 47, Part 15.

The detector shall not interfere with any existing equipment.

The vehicle detection system’s cabinet components shall operate using a nominal input voltage

of 120 volts of alternating current (Vac). For any device requiring a source input other than the

standard 120 Vac, the Contractor shall supply the appropriate means of conversion. Equipment shall

be furnished with the appropriate power and communication cables. Cables shall comply with NEC

sizing requirements as presented in the NEC Article 210-19(a), Fine Print Note (FPN) No. 4, and meet

all other applicable standards, specifications and local code requirements.

In the event that power to the VDS or any subcomponent is interrupted, the equipment shall

automatically recover after power is restored. All programmable system settings shall return to their

previous configurations when the system resumes proper operation.

The Contractor shall provide VDS that meet all requirements during and after being subjected to

an ambient operating temperature range of -30°F to 165°F {-34°C to 74°C} with a maximum

Vehicle Detection Systems (VDS)

873

noncondensing relative humidity as defined in the environmental requirements section of the NEMA

TS2 standard.

The VDS manufacturer shall certify that its device has successfully completed environmental

testing as defined in the NEMA TS2 standard. Vibration and shock resistance shall meet the

requirements of NEMA TS2 Sections 2.1.9 and 2.1.10, respectively. The system components shall

comply with the environmental requirements detailed in the NEMA TS2 standard.

The Contractor shall furnish and install an environmentally resistant and tamper-proof sensor

enclosure for any detector assembly exposed to the elements. The enclosure shall be environmentally

sealed upon installation.

Radar Vehicle Detection System (RVDS) shall meet the following functional requirements:

headway, gap time, and vehicle presence.

zone limits through the Graphical User Interface (GUI).

manually.

through a GUI command, and without detection disruption.

power supply.

Vehicle Detection Systems (VDS)

874

The RVDS equipment shall also meet the following minimum technical requirements:

DESCRIPTION SPECIFICATION

Type A

Type B

Single beam

Dual or multi beam

Radar Detector Power 115 Vac, 60 Hz

Frequency 24.00 to 24.25 GHz

Frequency Tuning No manual tuning to circuitry

Detection Range 6 to 250 ft. {1.8 to 76.2 m}

Lane Detection 12 lanes

Type A Accuracy:

Volume

Speed

Classification

97% typical

95% typical

90% typical

Type B Accuracy:

Volume

Speed

Classification

98% typical

97% typical at 70 mph; 95% typical at 40 mph

90% typical

Communication Ports Full-Duplex RS-232 with RTS/CTS or Half-duplex RS-485

Firmware Upgrade Firmware Upgradability over any communication port

Baud Rate User configurable. Supported Baud Rates: 9600, 19200,

38400, 57600, and 115200 bps.

User Configurable Settings Baud rate, Response delay, Data push, RS-232 flow control

Interval Data Collected for

Each Lane

Sensor ID, Timestamp, Volume, Average Speed, Occupancy,

Classification Counts, Speed Bin Counts, Direction Counts,

Average Headway, Average Gap, 85th Percentile Speed

Event Data for Each

Detection

Sensor ID, Timestamp, Lane Assignment, Speed, Length,

Class

Presence Data for Each Lane Sensor ID, Per-Lane Presence

Vertical Beam Width 50°

Horizontal Beam Width 6°

Maintenance No cleaning or adjustment necessary, no battery

replacement necessary, no recalibration necessary, mean

time between failures: 10 years minimum

Magnetometer Vehicle Detection System (MVDS) shall meet the following functional requirements:

access point with antenna(s), and in-road magnetometer vehicle detection unit.

presence.

All necessary equipment (e.g., transceivers, receivers, etc.) shall be included as part of

the MVDS.

point.

asphalt, and epoxy used to fill in around in-road unit.

2070 controllers, and Type Advanced Transportation Controller (ATC).

Vehicle Detection Systems (VDS)

875

to the access point and communication from the access point to the in-cabinet unit,

wirelessly and wired through EIA RS-485 connection.

location.

roadway buckles.

unit automatically and manually.

manually through the Graphical User Interface (GUI), and without detection disruption.

communication errors, and in-road unit low battery.

unit, access point, and in-road unit.

The MVDS equipment shall also meet the following minimum technical requirements:

DESCRIPTION SPECIFICATION

Detection Area Each detector shall detect vehicles comparable to that of a 6

ft x 6 ft {1.8 m x 1.8 m} loop

Detector Battery Life The average lifespan for detector batteries shall be ten (10)

years minimum

Detector Battery Type D cell lithium battery or equivalent

Average Vehicle Count 95% accurate at 500 VPHPL

Communication Ports 8P8C (a.k.a. type RJ45 “unkeyed”) modular jack port, EIA RS-

485, Ethernet

Interval (bin) data packet

protocol

Shall support: Sensor ID; Timestamp which records year,

month, day, hour, minute, and second; Total volumes;

Average speed values in either mph or kph; Occupancy in 0.1%

increments; Volume in up to eight length-based user-defined

vehicle classification bins; Volume in up to 15 user-defined

speed bins (bin by speed); Average headway in seconds;

Average gap in seconds; 85th percentile speed in either mph

or kph

Event (per vehicle) data

packet protocol

Shall support: Sensor ID; Timestamp which records year,

month, day, hour, minute, second, and millisecond of the

time the vehicle left the detection zone; Lane assignment;

Speed values in either mph or kph

Real-time true presence

data packet protocol

Shall support: Sensor ID; True presence information for each

magnetometer being monitored

Bluetooth Data Collection System (BDCS) shall meet the following functional requirements:

enabled devices utilizing either discoverable and/or non-discoverable methods.

electronic devices.

electronic devices.

Vehicle Detection Systems (VDS)

876

purposes of travel time.

store identification formation for matching.

end designations.

beginning and end designations with the intermediate detectors having to be triggered as

a logical parameter check for the match completion (i.e., not a sum of pairings)

beginning and end designations with the intermediate detectors having to be triggered as

a logical parameter check for the match completion (i.e., not a sum of pairings).

The BDCS equipment shall also meet the following minimum technical requirements:

DESCRIPTION SPECIFICATION

Detector ID Each detector shall have a dedicated IP address

Power Supply

(Type to be as shown on

the Plans)

Detectors shall support power via:

• 110-220 Vac (supports direct connection or power supply,

PoE (IEEE 802.3))

• 10-48 Vdc (supports 85W solar powered unit with gel sealed

battery, PoE (IEEE 802.3))

Updates The server shall be capable of receiving patches and updates

Communications

(Type to be as shown on

the Plans)

Ethernet 10/100 BaseT (static or DHCP IP address)

LTE cellular connection

Bluetooth Sensing Data shall be retrieved for both MAC addresses and/or

Bluetooth unit heartbeats.

Detection Information 12 characters of the MAC address shall be detected for

discoverable Bluetooth signals

6 characters of the MAC address shall be detected for non-

discoverable Bluetooth signals, if included

Bluetooth 2.4 GHz Demodulator

Antennae 2 dBi Omni (discoverable Bluetooth detector)

2 dBi Omni (non-discoverable Bluetooth detector, if included)

LTE – MIMO Receive Diversity

Detector Memory On board 4GB Micro-SD card up to 1 year of storage

Processor Real time microcontroller

Bluetooth v4.1

893.07Dynamic Message Sign (DMS)

877

Dynamic Message Sign (DMS)

The Contractor shall provide and install a Dynamic Message Sign (DMS) that shall display a user

defined changeable message for the purpose of relaying traffic, hazard, emergency, or other

information to the travelling public. ALDOT uses the following DMS styles:

A Walk-In DMS uses a permanently mounted dynamic message board to display information and

can be entered to perform routine maintenance and repair.

Front Access DMS uses a permanently mounted dynamic message board to display information

and can be accessed for routine maintenance and repair through opening sections of the message

board face.

A Dedicated DMS uses a permanently mounted dynamic message board to display travel time

information. The Dedicated DMS is mounted to a standard retroreflective sign which explains the

dynamic information shown on the Dedicated DMS.

The DMS manufacturer is required to fully comply with this Specification. The Contractor shall

provide a compliant first-draft submittal and DMS equipment that complies with this Specification.

The Department reserves the right to independently verify the compliance of all delivered DMS

products prior to acceptance and payment.

The DMS Manufacturer shall be ISO 9001 Certified or ISO 9001 Compliant as determined by the

Engineer.

All materials furnished, assembled, fabricated or installed under this item shall be new, corrosion

resistant and in strict accordance with the Specifications and as shown on the Plans.

Aluminum for fabricated items shall conform to the requirements of Section 891, unless

otherwise stated herein. Aluminum DMS housings and control equipment cabinets shall be fabricated,

welded or chemically bonded and inspected in accordance with the requirements of the

ANSI/American Welding Society (AWS) D1.2 Structural Welding Code-Aluminum (latest version). [See

Item 893.07(a)4, “Sign Housing” for special material submittal requirements regarding welders and

welding inspectors.]

DMS shall meet the requirements of NEMA TS4 “Hardware Standards for Dynamic Message Signs

(DMS), with NTCIP Requirements”. DMSs are classified by the type of sign display and the type of

mechanical construction. Provide full-color and full-matrix signs as shown on the Plans and required

within the Specifications. DMS shall use only equipment and components which meet the minimum

requirements specified within the Specifications.

The front of the DMS housing shall have either a flat black matte finish or a semi-gloss black

polyvinylidene fluoride (PVDF) coating. This finish coating shall withstand extreme weather

conditions and prevent chalking.

Structural mounting hardware (nuts, bolts, washers, etc.) shall be stainless steel and shall be

appropriately sized for their application.

The DMS housing shall be fabricated, welded and inspected in accordance with the

requirements of ANSI/AWS D1.2 Structural Welding Code-Aluminum. Compliance with this

requirement shall include, but is not limited to:

welding procedures.

ii. All manufacturing personnel who perform welding on the DMS housing shall be certified to

AWS D1.2 for all weld types required for housing fabrication. The DMS manufacturer’s

submittal shall contain a copy of each welder’s certification.

Dynamic Message Sign (DMS)

878

iii. All personnel who perform welding inspection on the DMS housing shall be certified to AWS

D1.2. The DMS manufacturer’s submittal shall contain a copy of each Certified Welding

Inspector’s certification, along with their phone number and address.

iv. All DMS housing welding shall be inspected on a daily basis by a Certified Welding Inspector

(CWI), who shall complete daily written reports on DMS welding progress, housing weld

integrity, and any corrective action taken. These reports shall be archived by the DMS

manufacturer and shall be available for immediate review upon request by the Engineer.

The DMS housing, including its front face panels, shall pass the NEMA hose-down test as

described in the latest edition of NEMA Standards Publication 250. However, the spray angle need

not be more than 75° from straight down.

The DMS housing, structural framing, face covering, and mounting members shall be designed

to comply with the requirements of AASHTO’s “Standard Specifications for Structural Supports for

Highway Signs, Luminaries and Traffic Signals, 2009 Edition” regarding wind loads and gust factors.

The DMS housing must also withstand a front face ice load as defined in same AASHTO document.

The DMS housing design shall be certified and sealed by a Professional Engineer registered in the

State of Alabama.

The DMS housing shall be provided with the necessary louvered vents positioned such that

vehicle exhaust fume intrusion into the sign housing is minimized while the housing is provided with

sufficient ventilation to maintain the thermostat temperature settings. Provide fans,

thermostatically and parallel timer switch controlled, to pull warm air out of the sign housing to

support the venting of the heat within the sign housing to the extent that an interior temperature

of no more than 130°F {54°C} is reached with a 120°F {49°C} direct sunlight generated ambient

temperature with the access door closed and locked. Documentation of the design calculations to

support the performance of the ventilation and heating systems shall be included with the DMS

material submittal and delivered to the Engineer. (Similarly, effective positive-pressure ventilation

and heating system may be used but must be submitted via an exception letter to the Engineer for

review and approval. If approved, this positive-pressure ventilation system must meet same heating

and cooling levels and comparable features as those obtained with above ventilation and heating

system.)

Use replaceable waterproof washable dust filters across all vents and position them such that

when in place a secure dust tight joint exists between the filter and the housing. Install fans in

protected fan openings within the DMS housing such that moisture, dust, vehicle exhaust fumes, or

insects or birds will not enter the fan opening.

Control the ventilation fan and heater by thermostats adjustable to operate the fan between

the range of 70°F to 130°F {20°C to 54°C} and a separate heater thermostat adjustable between

the range 30°F to 80°F {-1°C to 27°C}. The on-off temperature delta of the thermostats shall be

nominally 3°F {1.7°C}. Verify that the current rating of the thermostats is no less than 200 percent

of the respective controlled equipment. Provide a two (2) hour timed-on fan switch for operation

of the fans by maintenance personnel that, when placed in the on position will turn on the fans for

a period of two hours. Turning the switch into the off position then back on shall reset the timer to

two more hours from the off-on cycle of the switch. Install device across the thermostat and switch

contacts that will prevent electromagnetic interference being generated with the opening or closing

of the thermostat contacts under electrical load.

If required, provide a heating system and thermal insulation to keep condensation on critical

elements to a minimum or to maintain performance on temperature sensitive items.

The DMS environmental control system shall also provide the following:

command from the central controller or laptop computer. The testing of the fan units shall

be via solid state airflow sensors mounted within the duct system measuring air flow or the

lack thereof. Any lack of flow alarms will cause an error message to be sent to the central

controller or laptop computer when the sign controller is polled by the central controller or

laptop computer.

ii. All ductwork that impedes access to any sign components shall be easily removable,

without tools, for servicing of these components.

Dynamic Message Sign (DMS)

879

iii. All ductwork shall be 0.040-inch minimum aluminum and shall be designed to be extremely

efficient with minimal pressure drop throughout the system.

iv. The temperature reading and humidity readings from the sensors shall be continuously

measured and monitored by the sign controller. A temperature or humidity reading greater

than a user selectable critical temperature shall cause the sign to take action such as the

turning on of additional fan units, the turning on of the pixel board heat strips, an automated

combination of the two functions or in extreme cases, the sign to go to blank and the sign

controller shall report this error message to the central controller.

control system in the event of an electronic fan control failure or shutdown of the sign

controller.

Sensors, which measure outdoor ambient light levels and the outdoor ambient temperature at

the DMS site, shall be mounted to the DMS housing walls. The system shall consist of three (3)

commercially available photo-electric sensors and one (1) temperature sensor. Photoelectric

sensors shall each have a minimum photo-sensitive area of 0.25 square inches, and sensor output

shall be reported to the DMS Field Controller. Temperature sensor output shall also be reported to

the DMS Field Controller. Two of the photoelectric sensors shall be placed such that they measure

ambient light levels striking the front and rear of the DMS housing, and the third photoelectric sensor

shall face the ground. The temperature sensor shall be placed such that it is never in direct contact

with sunlight.

Use photoelectric sensors capable of being continually exposed to direct sunlight without

impairment of performance of the sensors.

The photoelectric sensor shall be internally read by the DMS dimming system. The dimming

system shall read each of the 255 photoelectric sensor levels. The DMS dimming system shall

transmit the read value to the DMS ground mounted controller for distribution to the central system.

When the DMS is operating in local mode control, the dimming of the DMS display shall be consistent

with the ambient light sensed and the dimming system shall command the display into one (1) of

three (3) configurable display intensity levels.

Sense the ambient illumination level by orienting and optimizing the system of three

photovoltaic sensors in the following manner to sense the ambient illumination level:

• Photoelectric sensor 1 - Northern sky (or toward rear of sign)

• Photoelectric sensor 2 - Facing towards oncoming traffic (upstream or front of sign)

• Photoelectric sensor 3 - Facing down to the ground (or may face down from bottom of

sign)

The actual orientation of these minimum three photoelectric sensors should be as

recommended by the manufacturer and as approved by the Engineer.

All project DMS shall operate from a remote sign control computer, referred to as a Field

Controller, which receives instructions remotely via:

ii. Locally via direct laptop computer connection (RS-232) to the Field Controller (Laptop

connection shall be possible at the Field Controller within the housing or at the electronics

remote access cabinet mounted on the sign structure itself at ground level.)

iii. Via other local control inputs as described within the Specification

The DMS shall continue to display the current message in the event of communication

errors and Field Controller lock-up.

The DMS shall display the current message upon restoration of power.

All project DMS shall be able to display static messages, flashing messages, or multiple-frame

messages, as described below:

• Static Message – The selected message shall be displayed continuously on the sign face

until the Field Controller blanks the sign or affects the display of another message.

Dynamic Message Sign (DMS)

880

• Flashing Message – All or part of a message shall be displayed and blanked alternately at

rates from as fast as three (3) flashes per second to as slow as one (1) flash per 10

seconds. Flash rate shall be programmable in increments of 0.1 seconds. In the flashing

mode, message display time shall equal message off time.

• Multiple-Frame Messages – The selected message shall consist of up to three different

frames, with each frame containing up to three lines of information. The display time

of each message frame shall be individually controllable in durations of 0.5 seconds or

greater and shall be programmable in increments of 0.1 seconds.

All project signs shall display a message composed of any combination of alphanumeric

character fonts and punctuation. This shall minimally include the following character fonts and

shapes:

higher

ii. “0” through “9” as decimal digits, having a vertical height of seven (7) pixels and higher

iii. A blank or space

iv. Punctuation marks as follows . , ! ? - ‘ ’ “ ” ( )

All project signs shall display alphanumeric character fonts having the following configurations.

The LED DMS shall enable the display of text, consisting of a string of alphanumeric and other

characters. The approximate size of the sign shall be as shown on the Plans. Each character shall

be formed by a matrix of luminous pixels. The supported fonts shall also meet the latest MUTCD

font and pixel requirements.

Signs shall display all the fonts listed herein with the following inter-character spacing:

ii. Double-stroke fonts shall be displayable with two-pixel and three-pixel spacing, and

iii. The inter-character pixel spacing for the downloadable fonts is user-selected per NTCIP

The functional status of the DMS communications and major DMS components shall be reportable

to the DMS Central Software and displayable on the Central Computer monitor. This shall include:

out of spec, or current out of spec) and type.

overheating”.

from the central controller or laptop computer, each pixel in the sign shall be read and its

current state (full on, half on, or off), for the current displayed message, shall be returned to

the central controller. This will allow the central controller or laptop computer to show the

actual message that is visibly displayed on the sign on an individual pixel basis in a WYSIWYG

Dynamic Message Sign (DMS)

881

(What-You-See-Is-What-You-Get) format. This pixel status read shall not affect the displayed

message in any way.

which is either automatically selected by the Field Controller or is manually selected by a

Central Software operator.

at full on”, “Stuck at full off”, “Stuck at half on”, “Stuck at half off”.

mechanical error, stuck off, or partial error).

– presentable in degrees F and C.

temperature sensor – presentable in degrees F and C.

In the event of communication errors or a Field Controller lock-up, the DMS shall continue to

display the current message. In the event of a power failure, the DMS shall display the current

message upon restoration of power. All communications and/or power failures shall be dealt with as

defined within the parameters of Section 3.5.2.3.5 of NTCIP 1203 (v02.39), “Configure Event-Based

Message Activation”.

DMS and Field Controller signal and power inputs shall be protected from electrical spikes and

transients, as described herein:

cabinet. A parallel-connection surge suppresser, rated for a minimum surge of 10kA, shall be

connected to the load center in a manner which protects the load center and the equipment it

feeds.

Device), shall be further protected by the use of a series-connected surge suppresser capable

of passing 15 amperes of current. This device shall conform to the following requirements:

ii. 20 minimum peak surge occurrences;

iii. clamp at 20,000 amperes, 340 volts, maximum;

iv. maximum continuous operating current of 15 amperes at 120 Vac, 60 Hz;

vi. temperature range of -40°F to 185°F {-40°C to 85°C};

vii. approximate dimensions of 3 inches wide x 5 inches long x 2 inches high; and,

viii. this device shall be UL 1149 recognized.

Dynamic Message Sign (DMS)

882

protected by avalanche diodes rated for 11.5 Volts at 10 amps and 14 Volts at 70 amps.

diodes connected between each signal line and ground.

protected by avalanche diodes connected between each signal line and ground.

suppression device that provides a 200-volt clamp.

control equipment by optically-isolated input and output modules, or optically-isolated solid-

state relays.

diagnostics and the AC power failure alarm.

ii. Outputs shall include but shall not be limited to: cooling fan and defog/defrost

fan control.

The angular alignment of the sign housing shall be static in the vertical direction.

The sign display shall be clearly visible and legible from distances between 170 ft. and 900 ft.

{52 m and 270 m} under normal freeway operating conditions. The luminous intensity of the pixel

shall not decrease more than 50 percent when viewed at an angle of ± 7.5 degrees for freeway signs

and ± 15 degrees for arterial signs when centered about the optical axis and perpendicular to the

surface of the display.

The luminance level (or luminous intensity level) for different elements cannot vary by more

than 10 percent of the mean output of all the elements. The contrast ratio shall be within the

following ranges:

EXTERNAL

ILLUMINANCE (LUX)

CONTRAST

RATIO

40,000 7 to 50

20,000 7 to 50

10,000 7 to 50

4,000 7 to 50

400 7 to 50

40 15 to 100

The contrast ratio is to be calculated as follows:

Contrast Ratio = (LA - LB)/LB

where:

LA is measured intensity resulting from the Active Test Area Under Illumination;

and,

LB is measured intensity resulting from the Inactive Test Area Under Illumination.

When the sign displays text, the DMS shall display text in appropriate sizes and proportions to

allow for sufficient sight distance. In locations with speed limits of 45 mph or higher, letter heights

of 18 inches minimum shall be used. In locations with speed limits of less than 45 mph, letter height

of 12 inches minimum shall be used.

Text characters on full-matrix signs shall conform to ALDOT’s current font library used with

ALDOT’s Intelligent Transportation Systems software applications .

DMS components not contained within the DMS housing shall be installed within an ITS Cabinet

as specified within this Specification of the type and location as shown on the Plans.

Dynamic Message Sign (DMS)

883

Each DMS shall include an associated Field Controller, which shall be installed within the sign

housing itself or in an ITS Cabinet mounted on the sign structure.

DMS Field Controller shall be either a Type 2070L controller or a proprietary controller. Both

controller types shall be fully programmed with the proper NTCIP protocols.

If a proprietary controller is to be utilized, the DMS sign manufacturer shall be required to enter

into a firm price supply contract with ALDOT for no less than five years at an end cost to ALDOT of no

more than 80% of the most current State Contract Pricing for a standard Model 2070L controller.

The DMS Field Controller shall conform to the following requirements:

regulated DC power supply.

ii. Field Controller shall be housed in its own environmentally-resistant, durable, non-

corrosive enclosure.

iii. Field Controller enclosure shall: easily fit inside the control equipment cabinet; not

exceed volume of five cubic feet; and occupies no more than 1.5 feet of vertical rack space.

iv. Maximum weight of 25 pounds, including its enclosure.

185°F {-30°C to 85°C}, and it shall otherwise conform to the environmental standards outlined

in NEMA TS2, Section 2.

vi. Within the housing shall reside a remote fiber optic transceiver or a wireless transceiver

as shown on the Plans.

vii.Only one sign controller shall be used in each sign. No intermediate control device shall

be used.

viii. Field Controller hardware and software shall support all DMS communication, control,

and diagnostic features as listed herein, as well as those features listed in the DMS and Central

Software requirements.

ix. Field Controller hardware and software shall permit communication with the Central

Computer in either of the following modes, which shall be user selectable:

• Polled Multi-Drop Operation in which the Field Controller informs the Central

Computer of its current status, in response to a periodic automatic query from the

Central Computer; or,

• Event-Driven Operation in which the Field Controller responds to operator- initiated

queries from the Central Computer, and it also calls the Central Computer as required

herein.

DMS Field Controller shall have both permanent and changeable memory. Permanent memory

shall be in the form of flash-PROM integrated circuits, or latest technology being utilized as approved

by the Engineer, and shall contain the executable Field Controller software. Changeable memory

shall be in the form of non-volatile changeable solid-state memory integrated circuit, or utilize

latest technology as approved by the Engineer, and shall retain the data in memory for a minimum

of one year following a power failure. The changeable memory shall contain the library of messages,

the message display schedule and programmable operating parameters. Message storage

requirements and attributes shall be as detailed within this Specification. Each message shall have

the capability to be defined and stored as a six-frame message.

The DMS Field Controller shall implement an NTCIP protocol stack that is based on the NTCIP

Object Definitions for Dynamic Message Signs and Class B profile (NTCIP 1201, NTCIP 1203, NTCIP

2001, NTCIP 2101, NTCIP 2104, NTCIP 2201, NTCIP 2202, and NTCIP 2301). All communication will

be made using either SNMP or Simple Mail Transfer Protocol (SMTP) to retrieve and/or update the

configuration of the DMS controller. Furthermore, if the DMS Field Controller is required to generate

a response to the SNMP/SMTP request, then it should send the response to the requestor within five

NTCIP Conformance and MIB Objects shall meet the following functional requirements:

Dynamic Message Sign (DMS)

884

Object Definitions for DMS and Class B profile.

ii. The configuration of the DMS Field Controller shall update using communication via SNMP

and SMTP.

iii. When the DMS Field Controller is required to generate a response to the SNMP/SMTP

request, the controller shall send the response to the requestor within five (5) seconds of

receiving the request.

Each Field Controller shall contain two EIA/TIA RS-232E communication ports:

ii. one for local communication with a laptop computer (using 10/100 BaseT Ethernet port).

Both ports shall be capable of operation at baud rates of 9,600 to 56,000 bits per second or

greater. The exact baud rate used shall be user selectable. The Contractor shall install a

communications Comm Device as shown on the Plans and shall connect the Comm Device/transceiver

to the EIA/TIA RS-232E port and communications device.

Field Controller shall contain a computer-readable time-of-year clock that has a lithium battery

backup. The battery shall keep the clock operating properly for at least ten (10) years without

external power, and the clock shall automatically adjust for daylight savings time and leap year

through hardware or software or a combination of both. The clock shall be set by the Field

Controller’s microprocessor, and it shall be accurate to within one (1) minute per month.

The user shall be prompted to enter a password which shall be stored and verified by the Field

Controller. The password shall not be echoed on the operator interface when entered by the user.

The Field Controller shall be able to store a minimum of three (3) user passwords. Initial access

passwords shall be installed by the Contractor as required by the Engineer.

The Field Controller shall instruct the LED driver circuitry in a manner which causes the desired

message to be displayed on the DMS. At a minimum, signs shall be able to display the alphanumeric

character fonts described within the Specification. Software shall handle such details as centering

text on a display line, right justification, left justification, and legible spacing of letters and words.

Software shall include a mechanism to allow the selection of a particular font style (character width

and single-stroke vs. double-stroke, etc.).

The software shall support a flashing feature and the alternating between frames of a multiple-

frame message as described within the Specification. Software shall be designed to provide a default

value for each display parameter supported.

In the absence of instructions to the contrary from the Central Software, the Field Controller

shall implement a message selected from those stored in its memory, based upon date and time as

specified by a message schedule feature.

Display of a scheduled message may be overridden by instructions sent from a Central Software

operator. A Central Computer or laptop computer shall be able to cause the Field Controller to

implement a particular message selected from those stored in its memory, or a new message entered

via the Central Software. The Central Software shall be able to edit or completely replace a message

stored in the Field Controller’s memory or revise the message schedule. In addition, it shall be able

to cause the Field Controller to report its schedule or the text of any message stored in its memory.

Software shall incorporate fail-safe procedures to check messages received and shall not

change a message stored in memory, the message currently displayed on the sign, the schedule

stored in memory, or the current time unless the new message is correctly received.

Normally, a displayed message shall remain on the sign until either a command to change the

current message or the schedule in the Field Controller’s memory indicates that it is time for a

different message. However, it shall be possible to confer a “priority” status onto any message,

and a command to display a priority message shall overwrite any non-priority message being

displayed.

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885

The sign controller shall monitor the photocell circuits in the sign and convert the measured

light intensity into the desired pixel brightness. The photo circuit readings shall be correlated with

a brightness table in the sign controller. The brightness table shall have a minimum of 255 brightness

levels. Automatic adjustment of the LED driving waveform duty cycle shall occur in small enough

increments so that brightness of the sign changes smoothly, with no perceivable brightness change

between adjacent levels. The brightness table in each individual sign controller shall be adjustable

from the central controller and can be customized according to the requirements of the installation

site. Each sign shall have its own, independent brightness table.

Brightness shall be manually settable from the front panel of the controller and remotely from

the central computer in 1% increments.

The LED intensity control system shall conform to the following requirements:

as described within the Specification.

ii. Manual and automatic intensity control modes shall be provided in a manner which enables

the user to select the desired mode of operation, although the typical control mode shall be

“automatic”.

iii. Automatic intensity control shall select one of at least sixteen LED intensity levels based

on the sensed ambient light. The threshold points for each intensity levels shall be user

programmable. LED intensity levels shall be available in 1% increments and in a range of 1%

to 100% of maximum display intensity.

iv. Central Software shall contain a feature which enables the user to set a maximum usable

intensity threshold, which is a percentage of the absolute maximum possible intensity. This

shall be for the purpose of providing intensity headroom, for future years when the LED’s

begin to degrade. Daily LED intensity levels, selected via both automatic and manual control,

shall be selectable from a range of 1% to 100% of this maximum intensity value. At the time

of DMS delivery, this maximum intensity value shall be set to 67%.

be with a laptop computer connected to the RS-232 port furnished in the Field Controller.

Remote control shall be achieved by calling the Field Controller with a Central (remote)

Computer.

The DMS intensity control circuits and power system shall utilize electrical devices to minimize

radio frequency interference (RFI) noise generated by the DMS on the power line, as well as noise

radiated by the DMS circuitry.

The Field Controller shall be able to communicate with the Central Computer via the remote-

control port in either of two ways: polled multi-drop operation or event-driven direct operation.

In polled multi-drop operation, there is constant communication between each Field Controller

and the Central Computer. Several Field Controllers may be on the same communication channel,

with each controller assigned a unique identification (ID) number. ID numbers for controllers shall

conform to the NTCIP requirements for address numbers as indicated in this Specification, and a

Field Controller shall only respond to messages labeled with its ID or to the broadcast address ID.

In the polled multi-drop mode, Field Controllers never initiate communication, but merely transmit

their responses to commands or queries from the Central Computer. The Central Computer queries

each Field Controller frequently about its current status information.

Each sign shall have a unique ID number, which the Region/Area or Central TMC Computer

selects when it wants to issue a command or check on the status of the sign. The Field Controller

shall also be able to call the Central Computer whenever it detects restoration of AC power at its

DMS site and/or the internal DMS temperature exceeds the programmed safety limit. If the Central

Computer’s line is busy, the Field Controller shall keep trying at intervals selectable by the operator

until communication is established. Once it connects with the Central Computer, the Field

Controller shall transmit a status message that includes its identifying number. The Field Controller

shall automatically disconnect dial-up communications within five (5) minutes if communication

from the Central Computer is not detected.

Dynamic Message Sign (DMS)

886

Upon any status changes initiated either remotely or locally to the DMS Field Controller, the

Field Controller shall automatically update the Central Computer.

The Field Controller shall be configured such that if one communication mode is operational

(multi-drop vs. wireless), then the functionality of the other mode is disabled.

With either communication mode, it shall be possible for a maintenance technician to connect

a laptop computer to the Field Controller’s local RS-232 port and carry out all DMS control and

diagnostic operations that could be carried out by the Central Computer. However, local laptop

control capability shall be limited to only the DMS which is directly connected to that Field

Controller.

An 8-byte identification (ID) code shall be assignable to each Field Controller.

Upon command from either a remote Central Computer or a locally-connected laptop computer

running Central Software, the Field Controller shall test the electrical operation of all LED pixels

and determine whether they are operating with: “normal” current, “over” current (short circuit),

or “under” current (open circuit). This shall be accomplished via A/D conversion of each pixel’s

forward current. The alternate method of constant current monitoring may be used. The resulting

data shall be communicated to the Central Software using an NTCIP compliant method that can be

transmitted according to the NTCIP Class D profile. LED pixel diagnostic data shall be displayable

to a system operator as described in ALDOT’s Regional Traffic Management Center (RTMC) Standard

Operating Procedures Manual.

Contents of the Field Controller’s memory shall be preserved by battery backup during AC

power interruptions and the Controller shall automatically resume operation once AC power is

restored. Upon recovering from a power interruption, the Field Controller shall leave the current

message on the sign until it receives a command to change it, or until a message change is called

for by the sign schedule. The Field Controller shall report to the Central Computer that it has just

recovered from a power interruption.

Fiber Optic Data Transceivers shall be in accordance with Article 893.04, “Network Devices”

and shall be fully compatible with the existing fiber optic network devices and their control and

diagnostic bays in Hub and TMC buildings. Network Devices shall be single-mode and RS-232. Fiber

optic transceivers shall be mounted within the DMS exterior equipment cabinet mounted on the

sign structure itself.

If shown on the Plans, the Contractor shall supply one (1) remote or field fiber optic

transceiver and one (1) head-end fiber optic transceiver for each direct connect DMS. These Fiber

Optic Data Transceivers both field and head-end shall be paid under their respective pay item

number.

ii. Wireless Data Transceivers.

The Wireless Data Transceiver units required on remote signs, those not direct-connected via

fiber optic cable, shall be remote data units as supplied by the Department and as indicated on

the Plans. These units shall be set up for data transmission, RS-232.

ALDOT shall provide the Contractor with one (1) remote unit per remote sign and one (1) head

end unit that has the capability to communicate with a maximum of 30 multiple remote wireless

units.

The Contractor shall indicate which DMS will utilize wireless within the material submittal to

the Engineer.

The DMS shall meet the National Transportation Communications for ITS Protocol (NTCIP)

requirements as defined within ALDOT’s ITS Test Manual Document No. ITS-035 “Supplemental

Dynamic Message Sign (DMS) NTCIP Requirements”. This Supplemental Specification document may

be obtained by contacting ALDOT’s Design Bureau – Traffic Engineering Division or Construction

Bureau.

Please note that if a Conformance Group is mandatory, then all objects within that group listed

as mandatory shall be supported. If the DMS does not support the functionality associated with a

Dynamic Message Sign (DMS)

887

specific object or group of objects, yet still meets ALDOT’s minimum requirements, then the device

must respond with a noSuchName error response when requests are made for those objects.

The NTCIP Protocol supplied shall be the most recent version/release implemented. The

originally supplied version of the NTCIP software supplied with the DMS shall be fully capable of

upgrade by the DMS supplier and with no cost to the State.

The Contractor shall have a laptop computer for testing that will run the field controller and

NTCIP testing software as required within the Specifications. The laptop computer shall remain the

property of the Contractor after the completion of all DMS testing.

The sign manufacturer shall supply to the Department a statewide license for the unrestricted

utilization of internal control and remote sign software contained herein. Furthermore, the sign

manufacturer shall supply to the Department all future internal control software upgrades of the

originally supplied software version at no cost to the Department.

Supporting Structure used for mounting the equipment shall conform to the requirements given

in Section 718.

DMS shall be attached to their overhead support structures with aluminum support beams

comprised of aluminum alloy 6061-T6. The number of support beams needed and the method of

attaching the support beams to the sign housing and the overhead sign support structure shall be as

required to conform to the current edition of AASHTO’s “Standard Specifications for Structural

Supports for Highway Signs, Luminaries, and Traffic Signals” and all other structural requirements

specified for this contract. The support beam attachment shall also be certified by a Professional

Engineer in accordance with Section 718.

Where overhead support structures extend over both directions of a roadway, these structures

shall be designed to accommodate future DMS for the other direction along with any necessary

walkway, catwalk or access ladder additions. Also, overhead support structures with indicated future

DMS on the Plans shall be designed to accommodate these future features along with any necessary

walkway, catwalk or access ladder additions. These overhead support structures shall be supplied

and installed with a vibration dampener (as approved by the Engineer) in place of the future DMS.

The Contractor’s design submittal shall include and indicate these items within their respective

support structure design computations and drawings.

Concrete Foundation used for Supporting Structure shall conform to the requirements given in

Electrical Power Service shall be in accordance with Article 893.13, “Electrical Power Service

and Transformer”.

The Contractor shall provide each Walk-In DMS with a suitable catwalk for service access to the

DMS. Include with all Walk-In DMS housings a 4 ft {1.2 m} wide or greater catwalk that extends from

the right or left shoulder support structure, as shown on the Plans, to flush with or extending

underneath the sign enclosure. Safety rails shall be provided as a part of the catwalk. Provide a

catwalk that will support at least 2,000 lbs. {907 kg} with no discernible displacement.

The Walk-In DMS housing and all of its equipment and materials shall be designed and

constructed so that all maintenance and repair is performed from within the DMS housing, with the

exception of structural members and components thereof.

All Walk-In DMS housings shall have a minimum of 2 ft. 10 in. {86 cm} wide pathway inside the

sign housing to allow adequate room for maintenance personnel. There shall be 18 inches {46 cm}

of clear area between all equipment along the entire length of the sign housing from the 24 inch

{61 cm} walkway up to 6 feet {1.8 m} above the 24 inch {61 cm} walkway. The walkway shall conform

to NEMA TS4 Section 3.2.8.2 “Work Area” unless otherwise specified within this Specification.

Walk-In DMS housing doors shall be installed on each side of the DMS housing and shall open

outward toward the housing’s rear wall. DMS housing doors shall be rain-tight/dust-tight and shall

Dynamic Message Sign (DMS)

888

have minimum 2.5 ft. by 6 ft. {0.76 m by 1.8 m} opening. The Walk-In DMS housing doors shall be

furnished with a door lock that is keyed to use a Corbin No. 3 key. The door lock shall be a swing

cover, plated brass, tumbler type that is designed for outdoor “no freeze up” applications. The

latching/locking mechanism shall include a handle on the interior of the housing, so that a person

with no key and no tools cannot become trapped inside the housing. The door latch system shall be

capable of being locked, unlocked, opened, or closed from either the outside or inside of the

housing. The Walk-In DMS housing doors shall contain hold-open braces and door stops that allow

the door to be held in the full, 90, 45, and 30 degree open positions without the use of tools. The

hold-open braces, doors, and hinges shall be designed to withstand a minimum wind speed as defined

on the Plans (reference ALDOT Index Nos. 71001-71002, Standard Dwg. No. IHS-710, “Wind

Velocity Chart for Roadside Signs”) while the door is held in any of these positions.

One of the two Walk-In DMS housing doors will require removable rails to be mounted on the

inside of the housing. Rails shall be installed horizontally and spaced vertically every twelve inches

to a height of 42 inches {106 cm} above the internal walkway. Rail size shall be as required to

prevent a 300 pound {136 kg} person from falling out of the DMS housing, if the doorway is open.

Rails shall be attached to the sign housing with stainless steel hardware and designed for removal

with simple hand tools.

Rails shall meet OSHA 1910.36 paragraph 6 safety requirements. Prior to DMS installation, the

Engineer will advise the Contractor as to which doorway will require rails.

In each Walk-In DMS housing, provide folding step or a similar mechanism to allow a technician

to reach the upper interior of the sign during maintenance without the need of a portable device

such as a ladder or step stool and which does not interfere with the normal operation of the sign.

External repair of the housing and sign face shall be the only items requiring access to the external

portions of the housing.

Walk-In DMS housing shall conform to the ventilation requirements of NEMA TS4 Section 3 “DMS

Mechanical Construction”.

The DMS Walk-In housing shall contain interior lighting which conforms to NEMA TS4 Section

3.2.8.3 “Nighttime Service Lighting” utilizing UL Listed LED lighting fixtures rated for outdoor use

and extreme temperatures.

Comparable fluorescent lighting may be used but must be submitted via an exception letter to

the Engineer for review and approval. If approved, this fluorescent lighting must meet same

luminance lighting levels as those obtained with above lighting system. Proposed fluorescent light

ballasts shall be rated for operation at 0°F {-18°C}.

The light circuit shall be controlled by a manual timer switch having either an adjustable on

time of two (2) hours or a four hour timer with adjustable on time of 15 minute increments; and

shall be located on the inside of the housing near the door. The light switch timer shall begin timing

a “lights on” condition of two hours minimum, but no more than four hours, upon activation of the

switch. Turning the switch off and back on will reset the time out to another “lights on” cycle from

the time of the off-on cycle of the switch. Upon time out of this “lights on” period, the switch shall

deactivate the interior lighting by disconnecting the 120 Vac ungrounded circuit from the light

fixture.

Use a circuit breaker to protect two separate duplex 120V Ground Fault Circuit Interrupter

personnel. Use receptacles rated for 20 amperes. Each receptacle shall be fed from a 20 ampere

nominal 120 Vac circuit.

The DMS shall display user defined text and images.

The DMS shall display screens statically, flashing, and as a series of displays.

The DMS shall display screens through user defined actions with the DMS user interface and

remotely.

The DMS shall display a test screen when defined by the user for: full display (brightness

configured), characters (configured alpha, numeric, and special characters), and patterns (configured

flashing, corners).

The DMS shall reset display after power interruption.

The DMS shall operate without interruption with a primary power source.

Dynamic Message Sign (DMS)

889

The DMS shall reset automatically when requested by a user from the DMS user interface and

remotely.

DMS shall include associated control, diagnostic equipment, wireless or fiber optic

communications, LED lights, and power source.

The DMS must meet the requirements of NEMA TS4 “Hardware Standards for Dynamic Message

Signs (DMS), with NTCIP Requirements”. A DMS is classified by the type of sign display and the type

of mechanical construction.

The Walk-In DMS must meet the mechanical construction requirements of NEMA TS4 Section 3.2.8

“Walk-In Access DMS” unless otherwise specified within this Specification.

The Walk-In DMS shall meet the following weight, size, power, and display characteristics:

DESCRIPTION SPECIFICATION

Size W-1 Size W-2

Weight (maximum): 5000 lbs {2268 kg} 3,500 lbs {1,588 kg}

Housing Dimensions (maximum):

Width

Height

Depth

38 ft {11.6 m}

11 ft {3.4 m}

5 ft {1.5 m}

25 ft {7.6 m}

8 ft {2.5 m}

4 ft {1.3 m}

Display Dimensions (minimum):

Width

Height

27 ft {8.2 m}

6.25 ft {1.91 m}

22.67ft {6.91 m}

6.25 ft {1.91 m}

Power (maximum):

For signs ≤ 10 characters wide

For signs > 10 characters wide

6,000 W

13,000 W

6,000 W

13,000 W

Display Viewing Angle: 30 degrees 30 degrees

Display Type: Full Color, Full Matrix Full Color, Full Matrix

Pixel Spacing: 20 mm 20 mm

The DMS shall display user defined text and images.

The DMS shall display screens statically, flashing, and as a series of displays.

The DMS shall display screens through user defined actions with the DMS user interface and

remotely.

The DMS shall display a test screen when defined by the user for: full display (brightness

configured), characters (configured alpha, numeric, and special characters), and patterns (configured

flashing, corners).

The DMS shall reset display after power interruption.

The DMS shall operate without interruption with a primary power source.

The DMS shall reset automatically when requested by a user from the DMS user interface and

remotely.

DMS shall include associated control, diagnostic equipment, wireless or fiber optic

communications, LED lights, and power source.

The DMS must meet the requirements of NEMA TS4 “Hardware Standards for Dynamic Message

Signs (DMS), with NTCIP Requirements”. DMS are classified by the type of sign display and the type

of mechanical construction.

The Front Access DMS must meet the mechanical construction requirements of NEMA TS4 Sections

3.2.5 “Front and Rear Access” and 3.2.6 “Front Access DMS” unless otherwise specified within this

Specification.

Dynamic Message Sign (DMS)

890

The Front Access DMS shall meet the following weight, size, power, and display

characteristics:

DESCRIPTION SPECIFICATION

Size FA-1 Size FA-2

Weight (maximum): 2,500 lbs {1,134 kg} 3,500 lbs {1,588 kg}

Housing Dimensions (maximum):

Width

Height

Depth

20 ft {6.1 m}

7.5 ft {2.3 m}

2.5 ft {0.8 m}

28 ft {8.5 m}

8.5 ft {2.6 m}

2.5 ft {0.8 m}

Display Dimensions (minimum):

Width

Height

16.25ft {5.04 m}

4.16 ft {1.27 m}

ft {6.91 m}

6.25 ft {1.91 m}

Power (maximum):

For signs ≤ 10 characters wide

For signs > 10 characters wide

6,000 W

13,000 W

6,000 W

13,000 W

Display Viewing Angle 30 degrees 30 degrees

Display Type Full Color, Full Matrix Full Color, Full Matrix

Pixel Spacing 20 mm 20 mm

The DMS shall display images (as applicable per DMS usage) and user defined text.

The DMS shall display screens statically and flashing.

The DMS shall display screens through user defined actions with the DMS user interface and

remotely.

The DMS shall display a test screen when defined by the user.

The DMS shall reset display after power interruption.

The DMS shall operate without interruption with a primary power source.

The DMS shall reset automatically when requested by a user from the DMS user interface and

remotely.

DMS shall include associated control, diagnostic equipment, wireless or fiber optic

communications, LED lights, and power source.

The DMS must meet the requirements of NEMA TS4 “Hardware Standards for Dynamic Message

Signs (DMS), with NTCIP Requirements”. DMS are classified by the type of sign display and the type

of mechanical construction.

The Dedicated DMS must meet the mechanical construction requirements of NEMA TS4 Sections

3.2.5 “Front and Rear Access” and 3.2.6 “Front Access DMS” unless otherwise specified within this

Specification or shown on the Plans.

The Dedicated DMS shall meet the following weight, size, power, and display characteristics:

893.08Environmental Sensor

891

DESCRIPTION SPECIFICATION

Size D-1 (CSLS) Size D-2 (CTTS)

Display Dimensions (maximum):

Width

Height

Depth

As shown on the Plans

As shown on the Plans

6 in {15.2 cm}

As shown on the Plans

2.0 ft {61.0 cm}

6 in {15.2 cm}

Character Height: As shown on the Plans 18 in {45.7 cm}

Power 120/240 Vac 120/240 Vac

Communications Ethernet, RS-232 Ethernet, RS-232

Display Viewing Angle 30 degrees 30 degrees

Viewing Distance 1,100 ft 1,100 ft

Display Type Full Color, Full Matrix Full Color, Full Matrix

where CSLS is Dedicated Changeable Speed Limit Sign

and CTTS is Dedicated Changeable Travel Time Sign.

DESCRIPTION SPECIFICATION

Size D-3 (DLCS) Size D-4 (DLCS)

Display Dimensions (maximum):

Width

Height

Depth

As shown on the Plans

1.5 ft {45.7 cm}

6 in {15.2 cm}

As shown on the Plans

2.0 ft {61.0 cm}

6 in {15.2 cm}

Character Height: 12 in {30.5 cm} 18 in {45.7 cm}

Power 120/240 Vac 120/240 Vac

Communications Ethernet, RS-232 Ethernet, RS-232

Display Viewing Angle 30 degrees 30 degrees

Viewing Distance 1,100 ft 1,100 ft

Display Type Full Color, Full Matrix Full Color, Full Matrix

where DLCS is Dedicated Lane Control Sign.

Environmental Sensor

The Data Processing Unit shall perform any data processing and storage required on the data

received from the sensors. Each data record shall include sensor readings of a user-defined time

interval of 5 to 60 minutes.

The Data Processing Unit shall be capable of transmitting an alarm in the event of a low power

supply, complete power loss, or return to normal operation.

The Data Processing Unit shall be able to transmit alarms for user-defined thresholds for sensor

parameters.

The Data Processing Unit shall operate with a minimum of 20 sensors concurrently.

The Data Processing Unit shall process with a minimum of 512 MB RAM.

DESCRIPTION SPECIFICATION

Temperature Operating Range -22°F to 140°F {-30°C to 60°C} minimum

Housing Field Hardened

Communications Ports RS-232, RS-485, Ethernet

Power 24 Vdc, 4 A maximum

Environmental Sensor

892

The environmental sensor, whether an individual sensor or working as a system, must be capable

of transmitting all collected data. See above table for minimum communication port requirements.

All manufacturer software required to configure and operate the Environmental Sensor system

shall be provided.

Any equipment not rated for outdoor use shall be enclosed in a cabinet as specified within the

Specifications.

Provide an environmental Weather Sensor that shall provide specified environmental

information for the purpose of evaluating environmental conditions for hazards.

An Air Temperature Sensor determines the temperature of the surrounding environment.

The air temperature sensor shall provide temperature information of the surrounding

environment in all weather conditions, without delay.

DESCRIPTION SPECIFICATION

Temperature Operating Range -40°F to 140°F {-40°C to 60°C}

Accuracy ±0.4°F (±1.0°F if < -22°F) {±0.22°C}

Housing Weatherproof International Protection (IP) 66 rated

Humidity Operating Range 5 – 100%

A Relative Humidity Sensor uses an industry standard sensor to determine the current relative

humidity.

The relative humidity sensor shall provide information on relative humidity of the surrounding

environment in all weather conditions and all humidity ranges, without delay.

DESCRIPTION SPECIFICATION

Temperature Operating Range -40°F to 140°F {-40°C to 60°C}

Accuracy ± 2% Relative Humidity

Housing Weatherproof IP 66 rated

Power 12 Vdc

Humidity Operating Range 5 - 100%

A Visibility Sensor detects low visibility conditions, which might occur during fog or falling

precipitation.

The visibility sensor shall provide information on the visibility seen by drivers in all weather

conditions, without delay.

The visibility sensor shall measure a two (2) minute sample, providing the average over that

interval.

The visibility sensor shall operate with a heated hood to allow continuous operation in all weather

conditions.

Environmental Sensor

893

DESCRIPTION SPECIFICATION

Temperature Operating Range -40°F to 140°F {-40°C to 60°C}

Accuracy ± 10%

Range 6,560 ft {2000 m} minimum

Housing Weatherproof IP 66 rated

Power 12 or 24 Vdc

Signal Output 4 - 20 mA

Sensor Type Light

A Precipitation Rate Sensor determines the current rate of precipitation.

The precipitation rate sensor shall provide information on the rate of precipitation for all

precipitation types, without delay.

DESCRIPTION SPECIFICATION

Temperature Operating Range -40°F to 122°F {-40°C to 50°C}

Precipitation Type Rain, Snow

Precipitation Quantity (Reproducibility) > 90% or ± 5%

Housing Weatherproof IP 66 rated

Power 12 Vdc

Humidity Operating Range 5 - 100%

A Barometric Pressure Sensor uses an industry standard sensor to determine the current

barometric pressure.

The barometric pressure sensor shall provide barometric pressure information in all weather

conditions, without delay.

DESCRIPTION SPECIFICATION

Temperature Operating Range -40°F to 140°F {-40°C to 60°C}

Range 850 - 1050 mbar minimum

Accuracy ± 0.5 mbar at 32°F to 140°F {0°C to 40°C}

Housing Weatherproof IP 66 rated

Power 12 Vdc

Humidity Operating Range 5 - 100%

A Wind Speed and Direction Sensor uses an industry standard sensor to determine the current

wind speed and direction.

The wind speed and direction sensor shall provide information on the speed and direction of the

wind in all weather conditions, without delay.

Environmental Sensor

894

DESCRIPTION SPECIFICATION

Temperature Operating Range -40°F to 140°F {-40°C to 60°C}

Range:

Direction

Speed

0 - 359.9 degrees

0 - 75 m/s minimum

Accuracy:

Direction

Speed

±3°

± 0.3 m/s

Housing Weatherproof IP 66 rated

Power 12 Vdc

Humidity Operating Range 5 - 100%

An In Road Pavement Temperature Sensor uses an in road unit to determine the temperature of

the roadway.

The in road pavement temperature sensor shall provide temperature information of the

pavement surrounding the sensor in all weather conditions, without delay.

DESCRIPTION SPECIFICATION

Temperature Operating Range -40°F to 158°F {-40°C to 70°C}

Temperature Observation Range -40°F to 158°F {-40°C to 70°C}

Accuracy ±2°F {±1.11°C}

A Remote Road Pavement Temperature Sensor uses a non-intrusive remote sensor to determine

the temperature of the roadway.

The remote pavement temperature sensor shall provide temperature information of the

pavement at which the sensor is directed, without delay.

DESCRIPTION SPECIFICATION

Temperature Operating Range -40°F to 158°F {-40°C to 70°C}

Temperature Observation Range -40°F to 158°F {-40°C to 70°C}

Accuracy ±2°F {±1.11°C}

A Pavement Precipitation Depth Sensor determines the thickness of ice, water, or snow currently

on the roadway.

The pavement precipitation depth sensor shall provide information on the depth of precipitation

on the roadway in all weather conditions, without delay.

DESCRIPTION SPECIFICATION

Temperature Operating Range -40°F to 158°F {-40°C to 70°C}

Water Depth Observation Range 0.01 - 0.50 in {0.3 - 12.7 mm}

Water Depth Accuracy ± 0.1 mm

Surface Conditions Dry, Damp, Wet, Snow, Ice

893.09Highway Advisory Radio (HAR)

895

Highway Advisory Radio (HAR)

The Contractor shall provide and install a Highway Advisory Radio (HAR) system that shall

transmit a user defined changeable message for the purpose of relaying traffic, hazard, emergency,

or other information to the public. ALDOT uses the following HAR systems:

A Permanent HAR uses a permanently mounted HAR system that transmits a user defined

changeable message on AM or FM radio frequencies.

A Portable HAR uses a portable, trailer mounted, HAR system that transmits a user defined

changeable message on low-power AM radio.

The HAR shall be configured and managed both locally and remotely.

The Radio Transmitter subsystem shall meet the following requirements:

easily accessible controls.

A Digital Recording Unit shall be provided with the following minimum functional requirements:

messages, which can be recorded, stored, or deleted independently.

record/playback).

the event main site power is lost.

tones as applicable.

a compatible microphone).

provide the capability to phase-lock the transmitters to a common reference carrier to

minimize heterodyne.

the transmitter and certified by the FCC in accordance with the provisions of FCC Section

No. 90.242.

The cabinet used to contain HAR equipment shall be in accordance with the requirements as

specified within the Specifications and as shown on the Plans.

radiation angle performance.

per FCC regulations.

the standing waves.

Highway Advisory Radio (HAR)

896

account local site conditions, soil conditions, antenna type and exact location, along with

the ground plane designed.

signed off by the HAR equipment manufacturer. The HAR antenna grounding design and

submittal package shall include the requirements as specified within this Article and as

defined in Sub-Article 729.03(i)1.c, “HAR Antenna Grounding”.

tuned to the operational frequency and ground/soil type and conditions.

or radial loops extending outward from the base of the antenna to ensure proper grounding

and performance requirements.

as part the HAR grounding subsystem design submittal depending on site conditions to the

Department for review and approval prior to construction.

complete grounding subsystem that supports the minimum 4-mile transmission radius

system performance as described herein.

system.

grounded by using appropriate cable grounding kits as recommended by the cable

manufacturer.

In areas where HAR systems exist the Contractor shall integrate new HAR stations with

existing HAR server software and hardware.

The HAR software application shall provide centralized operator control and monitoring of

dispersed HAR and flashing beacon subsystems with the following minimum features and

capabilities:

transmit messages, list diagnostic information, and control of HAR field stations via the

network.

and monitoring of messages, playing of pre-recorded messages, emergency broadcast

mode (live), and National Oceanic and Atmospheric Administration (NOAA) weather radio

broadcast when alert is activated.

The Permanent HAR shall also meet the following minimum requirements:

source, and battery backup power source; and,

days without charging.

The Permanent HAR shall also meet the following minimum requirements:

Highway Advisory Radio (HAR)

897

DESCRIPTION SPECIFICATION

Power 120 Vac

12 Vdc Solar

180 Amp Battery Backup providing 3 days of continuous use

Audio Recoding Limit 80 minutes minimum

Transmit Radius 3 - 5 miles {6 - 10 km}

Transmitter FCC Approved Part 90.242

GPS synchronization

Antenna Height 50 ft maximum

Enclosure NEMA Type 3R Weatherproof

Broadcast Power Adjustable up to 10 W

Broadcast Frequency Range 530 - 1700 kHz

Frequency Stability ± 20 Hz

Audio Distortion < 1.5%, 200 Hz to 3 kHz

Audio Frequency Response ± 3 dB

Noise Level 70 dB maximum below 95% modulation level, 100 Hz to 3 kHz

Modulation 99%, -40 dB to 20 dB

Operating Temperature -40°F to 85°F {-40°C to 29°C}

Operating Humidity 95% (non-condensing)

Communication Ports Ethernet, RS 232 Serial, USB Flash Drive

The Portable HAR shall also meet the following minimum requirements:

source; and,

days without charging.

The Portable HAR shall be mounted on a single axle trailer, supporting the antenna, radio, power

supply, and other equipment during operation. The Portable HAR shall be towed with a standard ball

hitch. The trailer shall be in compliance with federal and local regulations and be roadworthy.

The Portable HAR shall also meet/provide the following requirements:

DESCRIPTION SPECIFICATION

Power Primary Solar

12 Vdc, 2 A maximum

200 A Battery providing up to 10 days of continuous use

Audio Recoding Limit 80 minutes minimum

Transmit Radius 3-5 miles {6-10 km}

Transmitter FCC Approved part 90.242

GPS synchronization

Antenna Height 25 ft maximum

Enclosure NEMA Type 3R Weatherproof

Broadcast Power Adjustable up to 10 W

Broadcast Frequency Range 530 - 1700 kHz

Frequency Stability ± 20 Hz

Audio Distortion < 1.5%, 200 Hz to 3 kHz

893.10Conduit, Conductor, Locate Tone Wire, Messenger, and Warning Tape

898

Audio Frequency Response ± 3 dB

Noise Level 70 dB maximum below 95% modulation level, 100 Hz to 3 kHz

Modulation 99%, -40 dB to 20 dB

Operating Temperature -40°F to 85°F {-40°C to 29°C}

Operating Humidity 95% (non-condensing)

Communication Digital modem, RS 232 Serial, USB Flash Drive

Conduit, Conductor, Locate Tone Wire, Messenger, and Warning Tape

Non-Metallic Conduit for ITS and related applications shall be Rigid Non-metallic Conduit (RNC)

[i.e. Rigid Polyvinyl Chloride (PVC) conduit, Liquid-tight Flexible Non-metallic Conduit (LFNC), or High

Density Polyethylene (HDPE) conduit] as indicated within this Section. All conduits shall be

homogeneous and shall have no visible cracks or holes. Non-metallic conduit shall be of the size and

type as shown on the Plans.

Non-metallic conduit shall be colored for intended usage as defined by the American Public Works

Association (APWA) Uniform Color Codes unless otherwise shown on the Plans or directed by the

Engineer. The color codes for underground utilities as adopted by the Department from APWA are as

follows:

COLOR USAGE

Red Electrical power and lighting

Orange Telecommunications, alarm or signal lines

(ALDOT uses this color for ITS and fiber optics.)

Yellow Gas, oil, steam, petroleum, or other gaseous or flammable material

Green Sewers and drain lines

Blue Drinking water

Purple Reclaimed water, irrigation and slurry lines

All non-metallic conduits shall be watertight sealed using solid or split ring compression type

duct plugs. Duct seal shall not be allowed. Couplings for HDPE conduits shall be compression type

fittings that provide a watertight seal and full pullout resistance meeting ASTM D-3350.

LFNC shall be Underwriters Laboratories (UL) Listed (UL 1660 “Liquid-Tight Flexible Nonmetallic

Conduit”) category code DXOQ and used in accordance with NEC Article 356. Fittings for LFNC shall

be mechanical connections manufactured to work specifically with LFNC. PVC cement shall not be

used on LFNC. Flex shall be rated for 1000 Volts maximum.

When being installed for power applications, conduit and fittings shall be Underwriters

Laboratories (UL) Listed for use as electrical conduit and carry the UL label. This UL label shall be

marked as follows: (a) at 10 feet {3 m} length intervals for conduit; and, (b) stamped or molded on

each fitting.

Non-Metallic conduit installed exposed (above grade) shall be Rigid Polyvinyl Chloride Conduit

(Type PVC) or Liquidtight Flexible Nonmetallic Conduit (Type LFNC). The exposed conduit shall be

ultra-violet (UV) stable (sunlight resistant) per UL 651. Exposed conduit shall be Schedule 80 PVC and

shall comply with the following conduit and fitting standards:

Chlorinated Poly (Vinyl Chloride) (CPVC) Compounds for Plastic Pipe and Fittings Used in

Non-Pressure Applications”,

and Fittings”, and

Conduit, Conductor, Locate Tone Wire, Messenger, and Warning Tape

899

Tubing”.

Non-Metallic Conduit installed underground (below grade) shall be High Density Polyethylene

Conduit (Type HDPE). Underground HDPE conduit shall be Schedule 80 or SDR-11 (depending upon UL

Listing requirements for non-fiber installations and as shown on the Plans). If rocky soil conditions

are encountered during precision directional bore installations, SDR-9 HDPE may be required.

Underground HDPE conduit shall comply with the following conduit and fitting standards:

Conduit",

on Controlled Inside Diameter",

on Controlled Outside Diameter",

Conduit Based on Controlled Outside Diameter (OD)",

Materials" for a minimum cell classification of PE334480E/C,

Conduit, Duct and Innerduct", and

Conduit”.

Metallic Conduit for ITS and related applications shall be Rigid Metal Conduit (Type RMC) of

Galvanized Steel, thick wall, unless otherwise shown on the Plans. Metallic conduit shall be of the size

shown on the Plans.

All metallic conduits shall conform to applicable Underwriters Laboratories (UL), NEC, ANSI, and

National Electrical Contractors Association Standard (NECA) conduit and fitting standards.

Galvanized Steel RMC shall also conform to: UL Standards No. 6 "Electrical Rigid Metallic Conduit

- Steel"; ANSI Standard Publication No. C80.1 “American National Standard For Electrical Rigid Steel

Conduit (ERSC)” with the applicable zinc protection coating requirements; and, ANSI Standard

Publication No. NECA 101 “Standard for Installing Steel Conduits (Rigid, IMC, EMT)”. All conduits shall

be homogeneous and shall have no visible cracks or holes. All metal accessories and fitting used with

the conduit shall be compatible and shall also meet the galvanization requirements as specified within

the Specification.

Conduit and fittings shall be Underwriters Laboratories (UL) Listed for use as electrical conduit

and carry the UL label. This UL label shall be marked as follows: (a) at 10 feet {3 m} length intervals

for conduit; and (b) stamped or molded on each fitting.

Use of RMC for electrical cable shall be installed in accordance with the NEC including bond

grounds.

When installed on a bridge or similar surface, the couplings shall be designed and factory certified

to handle expected expansion and contractions on a bridge application.

Reinforced Thermosetting Resin Conduit (RTRC) shall be of reinforced thermosetting resin material

with outer diameter size as shown on the Plans meeting or exceeding the latest requirements of NEMA

Standards Publication No. TC-14 “Reinforced Thermosetting Resin Conduit (RTRC) and Fittings” and UL

2515 “Standard for Supplemental Requirements for Extra Heavy Wall Reinforced Thermosetting Resin

Conduit (RTRC) and Fittings”. The conduit design shall be rated for above ground installations such as

on a bridge structure. The outer conduit, joints, and any spare used internally, shall be all-dielectric.

The conduit shall be ultra-violet (UV) stable (sunlight resistant) per UL 2515.

The joint assembly shall be tested in accordance with ASTM D2105 “Standard Test Method for

Longitudinal Tensile Properties of Fiberglass (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe and

Tube”. There shall be no water leakage through the joint when tested in accordance to UL Standard

No. UL 2515 and CSA Standard C22.2 No. 2515, “Aboveground Reinforced Thermosetting Resin Conduit

Conduit, Conductor, Locate Tone Wire, Messenger, and Warning Tape

900

Conduit joints shall consist of an integral bell and spigot. The spigot end shall have a buttress

type, male thread for easy installation. The belled end shall contain the mating female threads. The

conduit joint shall be made in such a manner as to form a watertight seal.

The couplings shall be manufactured from a high impact thermoplastic material and shall be

supplied with lead-ins to facilitate assembly.

The couplings shall be designed and factory certified to handle expected expansion and

contractions on a bridge application.

Appropriate termination kits shall be provided by the conduit manufacturer for terminating the

conduit in manholes and junction boxes.

Pull Tape shall be manufactured of aramid yarn and rated at 2500 lbs minimum for the purpose of

attaching to, and the pulling of fiber optic and electrical cables into a conduit system. Pull Tape shall

have low elasticity to minimize surge-induced fluctuation in pull tape tension. Pull Tape shall not

damage the conduit or cut the innerduct when under tension. Pull Tape shall be factory or field

installed within conduit.

Pulling grips shall be used in accordance with the cable manufacturer’s recommendations and

Standard Operating Procedures. Pulling grips shall be factory or field installed along with a breakaway

swivel; and shall be designed and rated for pulling fiber optic and electrical cables. Pulling grips shall

provide effective coupling of pulling loads to the jacket, aramid yarn, and central member of the fiber

optic cable per the cable manufacturer’s requirements. The use of a swivel between the pull tape and

pulling grip is required to prevent twist to the cable during the pulling operation and to limit exceeding

the cable’s maximum pulling tension.

Friction reduction multiduct sleeves are required for installing new fiber where indicated on the

Plans and with cell quantity specified. When size and quantity are not indicated on the Plans, a

minimum of 3-cells shall be provided. Size shall be based on conduit size. Each cell shall contain a

Pull Tape, as specified within the Specifications. Friction reduction multiduct sleeves shall be

manufactured of flexible polyester and nylon resin polymer textile material rated for the installed

environment.

All conductors shall be Type XHHW-2 stranded copper with 1000 Vac rated cross-linked

polyethylene insulation, high heat, and moisture resistance conforming to ANSI/NEMA Standard No. WC

70 and ICEA Standard No. S-95-658, “Power Cables Rated 2000 Volts or Less for the Distribution of

Electrical Energy”. Conductors shall be rated for conduit, direct burial, and sunlight resistance.

Conductors shall be suitable for wet or dry conditions at temperatures not to exceed 194°F {90°C}.

Conductor size shall be such to exceed the amperage rating of the upstream breaker. Conductors

shall be soft drawn annealed copper having a conductivity of at least 98 percent of pure copper. Wires

shall be single conductor type for sizes smaller than 8 AWG. Wires shall be stranded for sizes 8 AWG

and larger.

Insulation marking and color coding of conductors shall meet NEC standards.

Locate Tone Wire shall be a 12 AWG, solid copper wire with an orange jacket (a.k.a. trace wire or

locate wire) and also meet the CONDUCTOR requirements as specified within this Specification. Locate

Tone Wire shall be suited for direct burial and shall be continuous.

Messenger Wire (a.k.a. span wire) and Guy Wire (a.k.a. guy strand or down guy) for ITS and related

applications shall be steel, seven (7) wire strand, Class A (double galvanized) and conform to the

requirements of ASTM Standards Publication No. A 475, “Standard Specifications for Zinc-Coated Wire

Strand”. The cable shall be extra high-strength grade steel (EHS) with a minimum nominal diameter

of 1/4 inch {6 mm} and a minimum breaking strength of 3,136 pounds {14.0 kN}.

All cable attachment hardware and fittings shall be new and stainless steel or non-corrosive

material and shall be provided with tensile strength adequate for the application. Cable attachment

hardware and fittings shall include, but not limited to: pole attachment hardware, cable ties and

straps, lashing, extension arms, and pole extensions. Fiberglass insulators are to be provided in

accordance with applicable NESC, NEC and local Utility standards.

893.12Intelligent Transportation System (ITS) Cabinet

901

Down guy shall have a guy marker (a.k.a. guy guard) with materials as specified in accordance

with applicable NESC, NEMA and local Utility standards.

Warning Tape shall consist of an underground/buried tape marking the locations of conduits

containing fiber optic cables and/or electrical conductors as indicated on the Plans.

Warning tape shall be 3 inch {7.6 cm} wide, elastic PVC, tear resistant, corrosion resistant and

durable to extreme weather conditions. The color of the tape shall be orange with “ALDOT FIBER OPTIC

CABLE - CALL ALDOT [insert phone number to be provided by the TSMO Engineer]” printed every 3 feet

{0.9 meter} in black letters, unless otherwise noted on the Plans.

The physical test methods along with typical properties and values are specified below:

TEST METHOD TEST SPECIFICATION TEST VALUE/UNITS

Standard Weight ASTM-D2103 20 lbs/100 feet

Thickness-overall ASTM-D2103 4 mil

3 in. Tensile Break-MD ASTM-D882 35 lbs/ft

3 in. Tensile Strength-MD ASTM-D882 4 kpsi

3 in. Tensile Break-TD ASTM-D882 38 lbs/ft

3 in. Tensile Strength-TD ASTM-882 5 kpsi

Elongation-MD ASTM-882 530%

Elongation-TD ASTM-882 660%

Tear Strength ASTM-D2261 1.5 lbs/ft

893.11Grounding

All grounding conductors shall be either bare or insulated with green jacket in accordance with the

NEC.

Grounding electrodes (rods) installed for ITS equipment installations shall be copper clad rods of

minimum size 5/8 inch {16 mm} in diameter and 10 ft {3.0 m} long. All non-current carrying conductive

material shall be bonded together and grounded to earth through the grounding electrode. Grounding

electrodes shall be bonded by seven (7) strand copper wire or strap of the same cross-sectional area as

a 6 AWG {4.25mm} wire. Grounding electrodes shall conform to the NEC requirements and be approved

by the Underwriter’s Laboratory (UL).

[See Sub-Article 729.03(k), “Grounding, Lightning Protection, Insulation, and Circuit

Continuity” for grounding system installation and testing requirements.]

Intelligent Transportation System (ITS) Cabinet

All Intelligent Transportation System (ITS) Cabinets shall be of the same manufacturer per cabinet

type, identical in size and shape, and of the same quality throughout the entire project. The ITS

Cabinet shall be equipped internally as specified herein, and as required to suit the specific

complement of equipment as shown on the Plans.

ITS Cabinets shall meet the following general requirements:

ITS Cabinet housing shall be Aluminum alloy 5052-H32 at 0.125 inch thick (minimum) with a

natural aluminum finish and continuously welded seams. ITS Cabinet housing shall be UL listed and

meet below NEMA environmental rating requirements. ITS Cabinet exteriors shall be free of any sharp

edges and spurs.

For pole mounted applications, mount-side cabinet walls shall be designed to minimize deflection

and cabinet movement. Some cabinet wall reinforcement may be necessary.

ITS Cabinet dimensions are to be as indicated within each cabinet type and are approximate. A

tolerance of -0% to +15% shall be allowed on each cabinet dimension indicated within their respective

cabinet type table.

Intelligent Transportation System (ITS) Cabinet

902

ITS Cabinet shall meet or exceed NEMA Type 3R standard requirements and NEMA TS2 standard

requirements for shock and vibration. ITS Cabinet shall withstand ambient operating temperatures

from -40°F to 185°F {-40°C to 85°C}.

Louvered vents shall be installed on doors of the cabinet for ventilation. The bottom of the vents

shall be within 3 to 6 inches from the bottom of the door. Vents shall be framed in to allow installation

of air filter. The air filter shall be held in place securely against the door by a bottom bracket and a

spring loaded upper clamp. No incoming air shall bypass the air filter. The bottom filter bracket

shall be formed into a waterproof sump with drain holes to the outside housing.

An UL listed thermostatically controlled power vent and dual fans shall be provided. The

thermostat shall activate the fans at 110°F {43°C} and de-activate the fans at 90°F {32°C} with an

accuracy of ±5°F {±3°C}. Fans shall be rated at 100 cfm. Fans shall also be rated for three (3) year

continuous service life and have ball bearings.

ITS Cabinets shall utilize high efficiency Light-Emitting-Diode (LED) lighting fixtures. These light

fixtures shall be 120 Vac or have a power supply conversion. Each light fixture shall have a lumen

output of 600 to 1200 lumens at 4000°K to 5000°K (with a tolerance of ±300°K). The initial light

fixture output level is to be set at 1,000 lumens minimum per door, unless otherwise directed by the

Engineer. The light fixture shall be covered by a protective shield that prevents glare. These LED

light fixtures shall be operated by a UL listed Class 2 power supply.

These LED lighting fixtures shall be provided and mounted inside the top portion of the ITS

Cabinet for each door opening and under the cabinet drawer(s) so that it remains stationary when

drawer is extended. LED light fixtures shall be mounted such that they can be easily removed and

replaced without interference from other devices mounted in the ITS Cabinet.

All light fixtures shall be activated upon any door opening. Door switches along with necessary

connections to the respective light fixture shall be provided. Door switches shall be made of durable

materials and mounted in a manner that will withstand repeated use.

Doors shall be weather-resistant and dust-tight with a closed cell gasket. Mating surface of the

doors shall be covered with a silicone lubricant to prevent sticking. Top gasket shall be the width of

the door, side gaskets shall begin below top gasket and bottom gasket shall be within the side gaskets.

Doors shall include a retaining ring installed on the inside of the gasket for protection. Three-point

latching system is required with each point controlled by the door handle for each door. The three-

point latch points shall be at center, top, and bottom of each door. No plastic parts other than nylon

rollers for top/bottom door secure is allowed. Door hinges, bolts, three-point latch system and pins

shall be stainless steel or equivalent corrosion resistant material. When doors are open, a

manufactured doorstop shall be included to hold the door open at a minimum of two positions, 90

degrees and 120 degrees.

ITS Cabinet doors shall be equipped with a brass or stainless-steel lock. Lock shall be ALDOT’s

standard Corbin #3 lock and key set. The Contractor shall coordinate with the Engineer to obtain

cylinder code and key code. Two keys shall be provided for each lock. Locks will be permanently

lubricated and be covered with a weatherproof tab. Door handle shall turn away from the lock to

open the door. The keys shall be removable in the locked position only.

A plastic documentation pouch to store the ITS Cabinet and equipment documentation shall be

provided. Pouch shall be side-opening, reseal-able, opaque, and of a heavy-duty plastic material.

The pouch shall have metal or hard plastic reinforced holes for hanging from hooks included on the

cabinet door. The pouch shall be of the size and strength to easily hold all wiring diagrams, equipment

documentation and the maintenance logbook.

ITS Cabinets shall be equipped with a 19-inch industrial rack frame assembly with a four-post

design for mounting components in accordance with EIA/ECA-310 standard. Rack shall span the entire

height of the ITS Cabinet. Depth of rack shall be adjustable for differing field conditions. Rack

mounting panel(s) and mounting tray(s) shall be provided for installing the surface mount and

standalone equipment, respectively. All cage nuts and screws required for mounting equipment to

the rack shall also be provided. Additional cage nuts and screws, for mounting future equipment,

shall be provided and placed in a plastic sealable bag attached to the rack.

Intelligent Transportation System (ITS) Cabinet

903

All ITS Cabinets shall have a drawer that opens or is capable of sliding in and out for placing a

notebook or laptop computer. Adjustable shelves shall be vented and provided in quantities as

indicated in Dimension and General Requirements Table for each cabinet type. A hinged, aluminum

shelf and integrated storage compartment shall be installed inside the front door for two-door

cabinets. The shelf shall have a smooth, non-slip surface sufficient for use for a writing platform and

laptop workspace. The shelf shall have rounded or insulated edges that do not have the potential to

physically harm the user. The shelf and storage compartment shall have the ability to lock into place

when folded for storage; locking, unlocking, and use of the components shall not require tools.

Storage component shall be at least 1.5 inch {38 mm} deep and capable of holding letter-size (8.5

inch x 11 inch) documents/manuals, at minimum.

The following ITS Cabinet electrical requirements are minimum requirements and shall be

adapted to field conditions as shown on the Plans. Each ITS device type (e.g. camera, VDS, DMS, etc.)

shall have a separate dedicated circuit (i.e. branch circuit with circuit breaker).

Stranded copper wire shall be used with exception of earth ground conductor which shall be solid

wire. Wiring shall be UL listed and 1000 Volts rated per NEC. Wiring shall be neatly arranged,

labeled/tagged, and managed using wire management system and ties; wire to be appropriate lengths

before assembly (i.e., no double backs to take up slack). Color of wires shall be in accordance with

the NEC. Wiring within ITS Cabinet shall be continuous (i.e., no splices) landing on busbars, terminal

strips, device clamp, or lug.

Minimum 12 AWG (American Wire Gage) wire for all conductors on 120 Vac circuits unless

otherwise shown on the Plans. Terminal blocks shall be provided for incoming power with a rating

greater than wire being terminated on the block and shielded for contact protection. Grounding bus

shall be provided for both earth ground and AC neutral/common (each isolated from the other).

Electrical terminations shall be shielded (i.e., touch safe) to protect from accidental shock.

The ITS Cabinet shall contain minimum two (2) 15-amp rated convenience receptacles (NEMA

Type 5-15R) with GFCI protection and be on an isolated circuit protected by a 20-amp breaker. These

GFCI protected receptacles are to be designated for “Technician Service Use Only”.

Mounted power distribution unit(s) or power strip outlet(s) shall be provided near the top of each

ITS Cabinet for providing power to the ITS equipment. The power strip shall incorporate eight (8)

NEMA Type 5-15R receptacles and be on an isolated circuit protected by a 20-amp breaker unless

otherwise shown on the Plans. The power strip receptacle shall face the back of the cabinet and shall

be recessed within the cabinet rack to provide a minimum spacing of 3 inches {76 mm} between the

outlet’s face and the cabinet door when the door is closed.

Only circuit breakers that are Underwriters Laboratories (UL) approved and plainly marked with

trip and frame sizes and ampere rating shall be used. All circuit breakers shall be quick-make, quick-

break on either automatic or manual operations. Contacts shall be silver alloy and enclosed in an

arc-quenching chamber. Circuit breakers shall be standard panel-mount or channel-mount. Overload

tripping shall not be influenced by an ambient air temperature range from -0.5°F to 122°F {-18°C to

50°C}. Minimum interrupting capacity shall be 5,000 amperes RMS.

Busbars shall be fabricated from a copper alloy material compatible with copper wire. Busbars

shall be used for termination of ground or neutral conductors. The earth ground busbar shall have at

least two positions capable of terminating a 6 AWG conductor. With multiple busbars, each busbar

shall be interconnected via a 10 AWG conductor.

Terminal blocks and strips with voltage and current ratings greater than the voltage and current

ratings of the wires that are terminated on the blocks or strips shall be used. The terminal block for

the 120 Vac cabinet service entrance (SE) shall be a tubular clamp compression device that is fully

insulated (Marathon 1103P or approved equivalent). Terminal blocks for 120 Vac power wiring (TB1,

TB2) shall be on dual-screen barrier type terminal blocks with 9/16 in {14.3 mm} spacing using nickel-

plated brass 8-32 Philips slot screw and fork terminal lugs (Cinch 142 or approved equivalent). TB1

and TB2 shall have at least eight (8) terminal positions. Compression-type and tubular clamp terminal

blocks shall be used only for service entrance block. Spade lug terminals shall not be used for any

terminal block.

A 30-amp generator male receptacle, in a NEMA Type 3R rated enclosure shall be provided

external to cabinet for quick generator connection.

Intelligent Transportation System (ITS) Cabinet

904

Surge-Protective Device(s) are required in accordance with Item 729.03(q)7, “Installation of

Surge-Protective Devices” and shall be as specified in Sub-Article 893.17(i), “Surge Protection”.

Where the ITS Cabinet is pad mounted, the mounting pad foundation shall be concrete and as

shown on the Plans.

The concrete mix used for mounting pads shall comply with the requirements of Section 501 for

Class A concrete and Section 620, unless otherwise shown on the Plans. Mounting pad shall be formed

separately from any ITS concrete pole or structure foundations; and, the concrete shall include wire

mesh.

Reinforcing steel shall meet the requirements of Section 502 and as shown on the Plans.

Where the ITS Cabinet is pole or structure mounted, the service platform pad shall be concrete

and as shown on the Plans.

The concrete mix used for this service platform shall comply with the requirements of Section

501 for Class A concrete and Section 620, unless otherwise shown on the Plans. Concrete pad shall

be formed separately from any ITS concrete pole or structure foundations; and, the concrete shall

include wire mesh.

Reinforcing steel shall meet the requirements of Section 502 and as shown on the Plans.

The Uninterruptible Power Supply (UPS) unit for the ITS Cabinet shall be rack mounted and as

shown on the Plans. The UPS unit shall also meet the minimum requirements of Sub-Article 893.17(j)

“Uninterruptible Power Supply (UPS)”.

The UPS unit shall include all battery packs, power cables, mounting brackets and all

appurtenances necessary for a complete operational backup power system; adequately sized to

support the ITS cabinet equipment and operations.

The UPS unit shall typically support the ITS cabinet equipment as follows (unless otherwise shown

on the Plans): Managed Ethernet Switch and ITS Cabinet equipment (e.g. cabinet lighting, fans, ITS

equipment receptacles, and convenience receptacle).

ITS Cabinet Type 337 shall also meet the following requirements:

DESCRIPTION SPECIFICATION

Height 35.25 in.

Width 20.50 in.

Depth 18.125 in.

Mounting POLE/PEDESTAL

Number of Doors 2

Door Location(s) FRONT/REAR

Number of Adjustable Shelves 1

Rack Assembly Yes

Louvered Vent Size

(length x vent depth)

3.00 in. x 0.25 in. (24 each front door only)

Air Filter Size 12 in. x 16 in.

GFCI Receptacles 1-Duplex

Equipment Receptacles 1-Duplex

Breakers DIN rail mounted breakers.

One 30-amp main breaker; one 20-amp breaker for

cabinet lights, fans, and convenience receptacle; one

20-amp breaker for device receptacle; and additional

20-amp breakers required for any and each additional

convenience receptacle as required on the Plans

Intelligent Transportation System (ITS) Cabinet

905

ITS Cabinet Type 332S shall also meet the following requirements:

DESCRIPTION SPECIFICATION

Height 66.75 in.

Width 24.25 in.

Depth 30.25 in.

Mounting BASE

Number of Doors 2

Door Location(s) FRONT/REAR

Number of Adjustable Shelves 2

Rack Assembly Yes

Louvered Vent Size

(length x vent depth)

3.00 in. x 0.25 in. (24 each per door)

Air Filter Size 12 in. x 16 in.

GFCI Receptacles One Duplex

Equipment Receptacles One Duplex

Breakers DIN rail mounted breakers.

One 30-amp main breaker; one 20-amp breaker for

cabinet lights, fans, and convenience receptacle; one

20-amp breaker for device receptacle; and additional

20-amp breakers required for any and each additional

convenience receptacle as required on the Plans

ITS Cabinet Type 332D (QUAD) shall also meet the following requirements:

DESCRIPTION SPECIFICATION

Height 66.00 in.

Width 44.25 in.

Depth 28.50 in.

Mounting BASE

Number of Doors 4

Door Location(s) (2 each) FRONT, (2 each) REAR

Number of Adjustable Shelves 4

Rack Assembly Yes, Qty. (2)

Louvered Vent Size

(length x vent depth)

3.00 in. x 0.25 in. (24 each per door)

Air Filter Size 12 in. x 16in.

GFCI Receptacles One Quadruplex per side

Equipment Receptacles One Quadruplex per side

Breakers Panelboard shall be 100-amp rated with 30-amp main

breaker and 6 bolt-on type breakers unless specified

otherwise on the Plans; one 20-amp breaker for

cabinet lights, fans, and convenience receptacle; one

20-amp breaker for device receptacle; and additional

20-amp breakers required for any and each additional

convenience receptacle as required on the Plans

ITS Cabinet Type 336S shall also meet the following requirements:

Intelligent Transportation System (ITS) Cabinet

906

DESCRIPTION SPECIFICATION

Height 46.25 in.

Width 24.25 in.

Depth 22.25 in.

Mounting BASE/POLE

Number of Doors 2

Door Location(s) FRONT/REAR

Number of Adjustable Shelves 2

Rack Assembly Yes

Louvered Vent Size

(length x vent depth)

3.00 in. x 0.25 in. (12 each per door)

Air Filter Size 12 in. x 16 in.

GFCI Receptacles One Duplex

Equipment Receptacles One Duplex

Breakers DIN rail mounted breakers.

One 30-amp main breaker; one 20-amp breaker for

cabinet lights, fans, and convenience receptacle; one

20-amp breaker for device receptacle; and additional

20-amp breakers required for any and each additional

convenience receptacle as required on the Plans

ITS Cabinet Type 334 shall also meet the following requirements:

DESCRIPTION SPECIFICATION

Height 67 in.

Width 24.3 in.

Depth 30 in.

Mounting BASE/POLE

Number of Doors 2

Door Location(s) FRONT/REAR

Number of Adjustable Shelves 2 (minimum)

Rack Assembly Yes

Louvered Vent Size

(length x vent depth)

3.00 in. x 0.25 in. (12 each per door)

Air Filter Size 12 in. x 16 in.

Technician Receptacles One Duplex (non-GFCI)

Equipment Receptacles One Duplex and One Quadruplex

Breakers DIN rail mounted breakers.

One 30-amp main breaker; one 20-amp breaker for

cabinet lighting, fans, and (non-GFCI) convenience

receptacle; one 15-amp breaker for device

receptacle, powered from UPS if available; and

additional 15-amp breakers required for any and each

additional convenience receptacle as required on the

Plans.

Intelligent Transportation System (ITS) Cabinet

907

Relays When an Uninterruptible Power Supply (UPS) is

present, both equipment receptacles shall be

powered through the UPS. The Duplex receptacle

shall be powered through a relay that is switched

on/off by dry contacts on the UPS.

Cabinet UPS Status LEDs When a UPS is present, cabinet LEDs shall be provided

which indicate the UPS status. These cabinet LEDs

shall be installed on the door with the best visibility

from the road unless otherwise specified. These

cabinet LEDs shall be connected through relays such

that a green LED is ON under normal circumstances

and an amber LED is ON when the relay is activated

via dry contact from the UPS.

Fiber Distribution Unit Secondary Fiber Distribution Unit (SFDU) shall be a

slidable 1U rack-mounted unit for terminating the

optical fiber drop cable. SFDU shall be a 2-connector

panel design. Cable management shall be accessible

from the top of the SFDU when the drawer is in an

open position. There shall be sufficient cable slack to

allow the drawer to be fully functional.

This SFDU shall also meet all other requirements as

specified in Article 893.03 and as shown on the Plans.

ITS Cabinet, Hub (Quad) shall also meet the following requirements:

DESCRIPTION SPECIFICATION

Height 72 in.

Width 60 in.

Depth 48 in.

Mounting BASE

Number of Doors 4

Door Location(s) (2 each) FRONT, (2 each) REAR

Number of Adjustable Shelves 4 (minimum)

Rack Assembly Yes, Qty. (4)

Louvered Vent Size

(length x vent depth)

3.00 in. x 0.25 in. (24 each per door)

Air Filter Size 12 in. x 16 in.

Technician Receptacles One Duplex (non-GFCI) per side

Equipment Receptacles One Duplex and One Quadruplex per side

Breakers DIN rail mounted breakers.

One 30-amp main breaker; one 20-amp breaker for

cabinet lighting, fans, and (non-GFCI) convenience

receptacle; one 15-amp breaker for device

receptacle, powered from UPS if available; and

additional 15-amp breakers required for any and each

additional convenience receptacle as required on the

Plans.

893.13Electrical Power Service and Transformer

908

Relays When an Uninterruptible Power Supply (UPS) is

present, both equipment receptacles shall be

powered through the UPS. The Duplex receptacle

shall be powered through a relay that is switched

on/off by dry contacts on the UPS.

Cabinet UPS Status LEDs When a UPS is present, cabinet LEDs shall be provided

which indicate the UPS status. These cabinet LEDs

shall be installed on the door with the best visibility

from the road unless otherwise specified. These

cabinet LEDs shall be connected through relays such

that a green LED is ON under normal circumstances

and an amber LED is ON when the relay is activated

via dry contact from the UPS.

Fiber Distribution Unit Primary Fiber Distribution Unit (SFDU) shall be used

for terminating the optical fiber drop cable.

This PFDU shall also meet all other requirements as

specified in Article 893.03 and as shown on the Plans.

Electrical Power Service and Transformer

Electrical Power Service assembly shall consist of equipment to provide a pole attached raceway

and disconnect switch for use with power cable routed from the service entrance to the ITS Cabinet.

The electrical power service assembly shall include (at a minimum): service pole, weatherhead, conduit

and fittings, electrical cable/conductors (from utility power source to service pole), riser, disconnect

switch(es) with enclosure, grounding, and attachment clamps. Lateral/horizontal conductors, after the

service disconnect/meter base and to the ITS cabinets/equipment, are not part of the Electrical Power

Service assembly.

Electrical power service shall be in accordance with these Specifications, Plans, NEC requirements,

and local utility codes. Electrical power shall be provided by a Utility Company transformer that does

not provide power to any other equipment or clients unless otherwise noted on Plans or approved by the

Engineer.

Electrical service power runs will typically be a 120/240 Vac system unless otherwise supplied by

the Utility Company and/or shown on the Plans. For 480 volt systems or greater, a meter disconnect

switch shall be installed on the supply side of the meter and meter base in accordance with NEC Article

230 (especially Sub-Article 230.82) and as directed by the Utility Company.

Depending upon the electrical service provided, step-up and step-down transformers may be

required (e.g. for DMS or long-runs) as shown on the Plans. Typically, these transformers shall be

provided by the contractor and installed at the service pole location with another corresponding

transformer at the ITS Cabinet/equipment site as indicated on the Plans.

Materials shall be tested and approved by a nationally recognized testing laboratory and shall meet

the following requirements:

Service Pole shall be southern yellow pine treated in accordance with the latest American Wood-

Preserver’s Association (AWPA) standards and shall conform with requirements given in Section 833.

Unless otherwise shown on the Plans, service pole used for service lateral drop shall be a 35 foot

{10.7 m} Class 3 wood pole and shall conform to the requirements of ANSI Standards Publication No.

O5.1, “American National Standard for Wood Utility Products – Wood Poles: Specifications and

Dimensions” as published by American Wood Protection Association (AWPA), Birmingham, Alabama.

The poles shall not have more than 180 degrees of twist in grain over the full length and the sweep

shall be no more than 4 inches {100 mm}.

Phase or current carrying conductors shall be of the type RHH, RHW, USE, or XHHW. Size shall be

of the size shown on the Plans and in accordance with the NEC.

Conductors shall be stranded annealed copper with not less than 98 percent conductivity and shall

be insulated for 1000 Volts or more with rubber insulation and a neoprene jacket, or with cross-linked

polyethylene insulation.

893.14Intelligent Transportation System (ITS) Pole

909

Electrical Power Service Cable and Conductors shall also meet the requirements of Sub-Article

(f), “Conductor”

Conduit shall conform to the requirements specified in these Specifications and as shown on the

Plans. Only UL Listed conduit shall be used for electrical power service installations.

Weatherhead shall be made of a copper-free aluminum alloy or galvanized ferrous material.

Attachment hardware shall meet the requirements of this Section and as shown on the details in

the Special and Standard Highway Drawings, unless otherwise shown on the Plans.

Guy Wire (a.k.a. down guy) shall meet the requirements of this Section and as shown on the details

in the Special and Standard Highway Drawings, unless otherwise shown on the Plans.

When a meter base is required, the meter base shall be a meter base approved by the local Utility

Company. When a meter disconnect is required, the meter disconnect switch shall be a meter

disconnect meeting below service disconnect requirements (without key option unless otherwise

specified by the Utility Company), NEMA rated enclosure for intended outdoor use, rated for the service

supply voltage, and approved by the local Utility Company.

The Enclosure Cabinet shall conform to NEMA standards, made of galvanized steel,

aluminum, stainless steel or other material approved by the Engineer. The enclosure shall have

a hinged door with a padlock. Padlock No. 3210 keyed for a No. 3 key shall be provided. One

key for the enclosure cabinet shall be hung within the corresponding ITS Cabinet.

A manually re-settable circuit breaker shall be installed, which has a current rating of the

circuit to which electrical power is provided.

A surge lightning arrestor rated for a maximum permissible line to ground voltage of 175

Vac shall be installed; and meeting the requirements of NEMA standards for surge arrestors and

also as specified in Sub-Article 893.17(i), “Surge Protection”.

Grounding and grounding electrodes shall be as specified in this Specification unless otherwise

shown on the Plans.

If required, Step-Up/Step-Down Transformer(s) shall be provided for each Dynamic Message Sign

drops will require a higher distribution voltage than the Utility Company supplied power (typically

120/240 volt service). If required, a step-down transformer may also be provided for each ITS Cabinet

installation site as indicated on the Plans.

The step-up/step-down transformer shall be a dry type transformer as recommended by the local

Utility Company and approved by the Engineer. The transformer KVA size and primary/ secondary

voltages shall be as indicated on the Plans and approved by the Engineer. The transformer shall be

mounted in a NEMA 3R enclosure and have all the appurtenances necessary for a complete electrical

power service installation and to accommodate the required ITS equipment and ITS Cabinet.

Disconnecting means (disconnect switch) shall be required for all transformers in accordance with NEC

Article 450.14 and shall be located in close proximity to each transformer as allowed by NEC.

Intelligent Transportation System (ITS) Pole

Intelligent Transportation System (ITS) Poles shall primarily be a concrete pole for ITS applications

(e.g. cameras with or without other ITS devices). Metal poles with either auger base or concrete

foundations are typically used for vehicle detection equipment (i.e. radar or magnetometers) only. ITS

893.15Hub Building

910

Pole shall be in accordance with the Plans and these Specifications. ITS Poles shall also conform to the

requirements of Section 718 and Section 891.

Unless otherwise shown on the Plans, the ITS Pole shall have the following minimum accessories:

• a 4 inch x 8 inch {10 cm x 20 cm} conduit entrance opening, centered 18 inches {46 cm}

below grade; and,

• a 4 inch x 8 inch {10 cm x 20 cm} reinforced hand hole frame with cover, located 24 inches

{61 cm} above grade and centered on same side as the below grade conduit entrance.

In addition to the requirements of Section 718, deflection shall not exceed 1 inch {25 mm} in 30

mph {45 km/h} wind for poles 70 ft. {21.3 m} or less.

Concrete Foundations for metal ITS Poles shall be in accordance with the Plans and these

Specifications. Concrete Foundations shall also conform to the requirements of Section 718 and

Section 891.

Auger Base Foundations (screw-in helix type) shall be for vehicle detection installations only

(i.e. radar and magnetometer) as shown on the Plans and in accordance with these Specifications.

Auger Base Foundations shall also conform to the requirements of Section 718 and Section 891.

Materials used for auger base foundations must meet the requirements of ICC Evaluation Service

(ICC-ES) AC358, “Acceptance Criteria for Helical Foundation Systems and Devices” and Earth Contact

Products (ECP) “Utility Industry Anchor Design and Maintenance Manual”, Second Edition (2013).

The design of the auger base foundations (screw-in helix type) must be done by a licensed design

professional specialized in the engineering and design of auger base foundations and helical piles. The

designer shall be a licensed Professional Engineer in the State of Alabama and must have designed at

least five projects utilizing helical piles. Supporting documentation for license and minimum design

experience shall be provided upon request of the Engineer. Design calculations shall be in accordance

with the requirements of Section 718. The selected auger base size shall be a standard manufacturer

size based upon the Professional Engineer’s pole and foundation calculations at each ITS pole location.

Pre-drilled bolt patterns for the auger base foundation base plate and corresponding metal pole base

plate shall match. No drilling or modifications to the base plates will be allowed in the field.

All welds shall be made in accordance with the American Welding Society Standard ANSI/AWS D1.1,

“Structural Welding Code - Steel”, latest edition. Welders shall be certified in accordance with the

ANSI/AWS Code. The completed foundation shall be hot dipped galvanized for underground use.

Hub Building

Hub Building shall consist of a reinforced concrete or concrete composite building with concrete

foundation, generator, automatic transfer switch and an uninterruptible power supply. This Hub

Building is to be manufactured for the explicit use of housing the electronic communication equipment,

power supplies, fiber optic equipment and cabling, measuring devices, and other related components

necessary for the proper operation of an ITS deployment.

Hub Building shall be reinforced concrete or concrete composite precast design in a size as shown

on the Plans. Hub building shall be produced in its entirety at the manufacturer’s facility and delivered

and set-up complete at the Engineer’s designated location as shown on the Plans. Each building shall

have minimum 6.5 inch {165 mm} thick walls and minimum 4 inch {102 mm} thick ceiling and floor. The

wall thickness should consist of, at a minimum, 4 inch {102 mm} concrete plus insulation and paneling

for a total thickness of 6.5 inches {165 mm}. Hub Building shall be capable of withstanding minimum

loads in accordance with local wind loads and environmental conditions where building is to be

installed. Design must also consider stresses induced during handling, shipping and installation in order

to avoid product cracking or other handling damage. Hub building shall maintain an interior building

height of 9 ft. 6 in. {2.9 m} minimum from finished floor to finished ceiling.

Hub Building’s exterior shall have a bullet-resistant surface in accordance with UL 752 “Standard

for Bullet-Resisting Equipment”. Hub building’s exterior shall also be a concrete aggregate finish

where color is earth tone to blend with its surroundings, unless otherwise shown on the Plans.

Alternative exterior finishes or colors must have prior Engineer approval before hub building is

manufactured.

Hub Building

911

Hub Building’s interior floor covering shall be an industrial-grade vinyl flooring fastened to the

building’s floor with waterproof glue.

Hub Building shall be supplied with vapor shield in walls and ceiling to prevent moisture

penetration. Hub building shall also have an air gap between the building floor and the slab, or

alternatively, construct the slab with a vapor barrier as recommended by the hub building manufacturer

to prevent moisture penetration. Hub Building shall be insulated as follows: ceiling/roof with a

minimum Type R-21 insulation factor; walls with a minimum Type R-14 insulation factor; and floor with

a minimum Type R-11 insulation factor. Roof is to be constructed with a 1/8 inch per foot minimum

pitch for drainage.

Hub Building shall be furnished complete with the following installed equipment, at a minimum:

MOV type with peak surge rating of 50,000 amps (8x20 uS) with a response time of <5 nanoseconds

with a maximum clamp voltage of 420 volts at 1 mA and 700 amps at 700 volts;

resistant door with standard door drip cap;

to the hub building floor does not exceed 8 inches {20 cm};

photocell, motion sensor (minimum 180° up to 50 feet, selectable duration), weatherproof NEMA 3R

rated, and UL Listed; die-cast aluminum housing with powder coated paint finish; outside/exterior

mount by door for security of entry area; and Warm White (3000K), 2000 lumens (minimum) LED lights

unless otherwise indicated on the Plans;

color temperature, LED tubes along with diffuser lens for inside hub building unless otherwise

indicated on the Plans;

Heat and 30-amp Dehumidifier;

893.16Gas Utility Service

912

minimum of 10 feet, with 18 in. diameter of razor wire strung around the top of the fence and gate

[this item shall be paid separately and as shown on the Plans];

by the Engineer.

[PLEASE NOTE: Quantities and items listed are minimum. Latest codes and building

manufacturer may require additional quantities and items not listed above nor shown on the Plans.]

Hub Building and equipment racks shall also be furnished with a Halo Grounding Ring System

which meets the applicable grounding requirements of ANSI/TIA-607-B “Generic Telecommunications

Bonding and Grounding (Earthing) for Customer Premises”.

Hub Building Foundation shall be reinforced concrete as shown on the Plans.

The concrete mix used for the foundation shall comply with the requirements of Section 501 for

Class A concrete, unless otherwise shown on the Plans.

Reinforcing steel shall meet the requirements of Section 502 and as shown on the Plans.

The Generator shall be fully compatible and interoperable with the Automatic Transfer Switch.

The Generator’s electrical characteristics (i.e. size, power inputs and load outputs, line conditioning,

etc.) shall be as shown on the Plans. The Generator shall include the manufacturer’s recommended

concrete pad installed as shown on the Plans. The Generator shall include the gas utility service and

connections in accordance with the gas Utility Company requirements, these Specifications (see Sub-

Article 729.03(p) and Article 893.16, “Gas Utility Service”), and as shown on the Plans.

The Automatic Transfer Switch shall be fully compatible and interoperable with the Generator.

The Automatic Transfer Switch shall be in accordance with the NEC and Utility Company requirements

and as shown on the Plans.

The Uninterruptible Power Supply (UPS) units for the Hub Building shall be two (2) each, rack

mounted (or as indicated on the Plans), and as shown on the Plans. The UPS units shall also meet the

minimum requirements of Sub-Article 893.17(j) “Uninterruptible Power Supply (UPS)”.

The UPS units shall include all battery packs, power cables, mounting brackets and all

appurtenances necessary for a complete operational backup power system; adequately sized to support

the hub building equipment and operations.

The UPS units shall typically support the hub building equipment as follows (unless otherwise shown

on the Plans): each UPS will be plugged directly into one dedicated NEMA L5-30 two-pole twist-lock

plug, while one UPS will feed the power supply in the Managed Ethernet Switch (MES) and the other

UPS will feed the redundant power supply side of this Managed Ethernet Switch. The remaining hub

building equipment will be distributed evenly between these two UPS units, allowing both a circuit

and/or UPS failure on one side while still allowing the Hub Building’s Managed Ethernet Switch to

continue working.

Gas Utility Service

Gas Utility Service shall consist of equipment to provide a natural gas feed to the Hub Building

Generator, unless otherwise indicated on the Plans. The gas utility service components shall include (at

a minimum): a gas meter, gas line pressure regulator (if required), piping and fittings, along with any

893.17Miscellaneous Infrastructure

913

appurtenances as required by the local gas Utility Company. All gas utility service components shall

meet applicable material requirements of the American Gas Association (AGA), National Fuel Gas Code

(NFGC), and the local gas Utility Company.

Gas Utility Service shall also meet the requirements of Section 646 and Section 861.

Miscellaneous Infrastructure

All fiber optic cable splices shall be Fusion Splices. Mechanical splices are prohibited.

Maximum core alignment shall be verified prior to splicing and splice estimated loss measured

after the fusion process by the use of local injection and detection (LID) devices and/or profile

alignment algorithms. Not only shall the fusion splicer automatically align fibers, determine cleave

quality and fuse the fibers, but they shall also provide the operator with reference estimated splice

loss measurements.

Splice loss attenuation for fusion splicing for single-mode shall be 0.15 dB maximum.

The Contractor shall use heat-shrink sleeves to protect the fusion splice of 250 μm coated fibers

while offering individual access to each fusion splice. The heat-shrink sleeves shall be compatible

with the splice trays (whether existing or provided on this project). The heat-shrink sleeve protector

parameters shall meet the following:

sleeve)

When splicing all fiber optic cables outdoors, the Contractor shall provide and utilize an industry

acceptable, lighted, and clean fiber optic splicing trailer/lab or comparable facility. Prior to the

Contractor performing any fiber optic work, the Engineer shall approve the fiber optic splicing

trailer/lab or comparable facility to be used on this project.

Cleave tool’s minimum end angle average shall be < 0.7 degree angle with none of the 150 cleaves

sampled exceeding a 1.5 degree angle.

If requested by the Engineer, the Contractor shall submit the part number and manufacturer of

the cleave tool along with an “end angle” distribution chart which demonstrates the actual 150 cut

end angles.

The following material specifications covers Splice Closure equipment requirements for housing

and managing outside plant fusion splices, whether installed in underground or aerial applications.

For outside plant installations, the Contractor shall provide inline or dome-type sealed splice

closures that meet the requirements herein for use in the most severe conditions such as moisture,

vibration, impact, cable stress and flex temperature extremes. Splice closures shall pass the factory

test procedures per accepted industry standards: i.e. Telcordia/Bellsouth GR-771-CORE, ASTM G-26

(UV resistance), ASTM G-21 (fungus resistance), water immersion, freeze/thaw, salt fog, acidified

saltwater, chemical immersion, compression, impact/drop, torsion/bending, current surge, bond

clamp retention, and cable pullout among others. If requested by the Engineer, the Contractor shall

submit copies of these manufacturer’s factory test results.

The splice closure housing shall be a thermoplastic body design and suitable for butt, inline and

branch splices. The splice closure shall have corrosion resistant aluminum or stainless-steel hardware.

Splice closure shall be resistant to solvents, stress cracking, and creep. The housing materials shall

also be resistant to chemicals and other materials to which they might be exposed in normal

applications.

The installation of the splice closure shall not require specialized tools or equipment, other than

those normally carried by installation and maintenance crews.

Splice closures shall be totally re-enterable without damage to fiber optics, their jackets and

closure seal(s). The splice closure end cap shall be capable of accepting additional cables without

removal of the sheath retention or strength member clamping hardware on previously installed cables

Miscellaneous Infrastructure

914

or disturbing existing splices. The optical fiber splice closure shall provide a clamping mechanism to

prevent piston movement of the central member or strength members and to prevent cable sheath

slip or pullout.

The Contractor shall use splice closures that seal around cables with mechanical processes.

Splice closure shall provide adequate strain relief to meet fiber cable manufacturer

recommendations. The splice closure shall have flexible thermoplastic rubber end seals with pre-

template cable ports. The splice closure shall have a single clamping mechanism for accessing splice

trays and cable management. A single rubber gasket shall be used to seal the closure using the single

clamping mechanism. The rubber gasket shall be continuous without any holes and shall not require

replacement for re-entry.

Aerial splice closure shall be of an inline housing design, unless otherwise indicated on the Plans

or approved by the Engineer. Aerial splice closure shall be designed to eliminate the need for drip

collars and sealing collars.

The Contractor shall supply splice closures with manufacturer recommended mounting

hardware, whether installed aerially or underground. This mounting hardware shall be non-

corrosive metallic material (hot dipped galvanized steel, stainless steel or aluminum) unless

otherwise specified by the splice closure manufacturer and approved by the Engineer.

The splice closure shall have appropriate hardware and installation procedures to facilitate

the bonding and grounding of metal components in the closure and the armored cable sheath.

The cable bonding hardware shall be able to accommodate a copper grounding conductor equal

to or larger than 6 AWG.

Fiber organization shall be handled within the splice closure in such a way to protect and support

the fiber optic cable and splices in a secure environment. The organizer shall store fiber splices,

splice trays, slack buffer tubes and readily accept these cable configurations (trunk/butt, in-line and

branch (up to four drop cables)). The organizer should be of a stackable splice tray design where tray

assembly swings out to allow individual tray access without disassembly of trays above and below.

The splice closure organizer shall accept a minimum of four splice trays, one-piece cable strapping

system, bonding and grounding hardware as required for the project.

Fiber splices shall be housed in Splice Trays inside the splice closure. The proper splice tray shall

be selected based on the type of protection required by the single-mode fiber splice, quantity of

splices, and manufacturer of closure. Splice trays shall provide adequate strain relief tie down points

for the buffer tubes (using channel snaps) and fiber as well as provide a snug fit for heat shrink

sleeves. Splice trays shall be of stackable design. Splice trays shall provide adequate area for bare

fiber slack storage and management. Spliced fiber shall not be subjected to a bend radius smaller

than 1.2 inches {30mm}. Buffer tubes shall not be subjected to a bend radius smaller than 1.5 inches

{38 mm}.

The Contractor shall supply splice trays compatible and of the same manufacturer as the supplied

splice closure.

When identified on the Plans that new splice trays are required for existing closure, the

Contractor shall provide splice trays that shall work within the existing closure using the same

methodology, connections, firmness, and supports as existing splice trays.

Conduits required on structures shall be installed using a conduit hanger for conduit with spacing

and support as detailed on the Plans.

The conduit hangers shall utilize anchors, brackets, or clamps to provide attachment to a bridge

structure. Mechanical anchors for connection required when attachment to bridge will be in tension.

Otherwise, epoxy type anchors may be allowed. Drilling into bridge steel structure or concrete girders

is not allowed except with written approval by the Engineer. Bridge attachment shall be submitted to

committee for review and approval prior to installation.

Conduit hanger system used shall be recommended by the conduit manufacturer for the

application.

The conduit hanger shall be capable of supporting a load equal to the weights of the conduits,

cables, the weight of the hanger itself, plus 200 pounds.

Miscellaneous Infrastructure

915

Metal brackets, supports, and hardware components of the conduit hangers shall be manufactured

galvanized steel.

The Contractor shall furnish and install Riser Assembly in accordance with the Plans. The Riser

Assembly shall consist of a metallic riser, mounting brackets, straps, supports, any accessories, and

required hardware. All attachment hardware shall be made of galvanized steel.

For electrical service installations, the riser shall be 2 inch {53 mm} galvanized steel Rigid Metal

Conduit (RMC), unless otherwise shown on the Plans.

For fiber optic installations, the riser shall be a minimum 2 inch {53 mm} galvanized rigid steel U-

Guard with backplate, unless otherwise shown on the Plans.

Communication Box (CommBox) shall have the following properties: high strength, resistance to

sunlight, resistant to petrochemicals, unaffected by freeze/thaw cycles, straight sided, flush fit with

sidewalk or grass, and be capable of anchor inserts to allow for mounting Cable Rack. CommBox shall

be manufactured of a composite mixture of polymer and concrete; and, be reinforced by a heavy-

weave fiberglass. All CommBoxes shall be open bottomed one-piece box construction with cover and

Cable Rack. No stacking of box sections allowed. CommBox sizes shall be in accordance with the

Standard Drawings.

CommBox (both box and cover) shall conform to all test provisions of ANSI/Society of Cable

Telecommunication Engineers (SCTE) National Standard No. ANSI/SCTE 77 “Specifications for

Underground Enclosure Integrity” for Application Tier 22. CommBoxes shall meet or exceed the Tier

22 structural load test requirements which has the following defined test values:

Vertical Design Load = 22,500 lbs. {100.1 kN}

Test Load = 33,750 lbs. {150.1 kN}

Lateral Design Load = 800 lbs./sq. ft. {38.3 kPa}

Test Load = 1,200 lbs./sq. ft. {57.5 kPa}

CommBox shall be reinforced by a heavy-weave fiberglass creating a material compressive

strength of no less than 110 psi. Each CommBox shall be designed and tested to temperatures of -

50°F {-46°C}.

CommBox shall include manufacturer recommended Cable Rack for storage of cable slack and

splice closure(s). The Cable Rack shall be designed so it supports both the cable maintenance coils

(while maintaining cable bend radius) and the splice closure such that they are not stressed while

hanging on the rack. The Cable Rack shall also hold the cable and splice closure up off the bottom of

the CommBox. The Cable Rack shall be non-corrosive metallic material (hot dipped galvanized steel,

stainless steel or aluminum) with no sharp edges. The Contractor shall submit, for Engineer approval,

the Cable Rack shop drawings/cut-sheets of the materials and installation.

All CommBoxes shall be supplied with a heavy-duty cover that meets the ANSI/SCTE 77

application Tier rating requirements as defined in above “Materials and Load Requirements”.

All covers shall be supplied with a minimum of two (2) stainless steel hex head bolts with stainless

steel washers used to secure the cover to the CommBox.

CommBox covers shall be embossed on the outside of the Cover with “FIBER OPTICS” when used

for fiber optic installations and “ELECTRIC” when used for electrical power service installations.

CommBox covers shall have “J” hook slots (reference ALDOT Index No. 72920, Standard Dwg. No.

ITS-729-020, “CommBox Installation For Fiber Optic Cable And Conductors”).

Where required per NEC for conductive optical fiber cables or electrical service conductors,

CommBox shall require a grounding electrode (ground rod) installed within the CommBox and meet

the Grounding requirements of this Specification.

Each CommBox shall be surrounded by a minimum 12 in. wide x 6 in. deep concrete collar and

shall include wire mesh.

Miscellaneous Infrastructure

916

The concrete mix used for concrete collar shall comply with the requirements of Section 501 for

Class A concrete and Section 620, unless otherwise shown on the Plans.

Reinforcing steel shall meet the requirements of Section 502 and as shown on the Plans.

Pull Box shall be manufactured of a minimum of 0.125 inch {3 mm} thick aluminum and be

supplied with a screw-on cover (hinge optional). Exposed surfaces shall be treated with rust resistant

material. Pull Box shall meet the requirements of NEMA Type 3R. Pull boxes shall have fixed external

mounting brackets for structure mounting (4 total, 2 per side on opposite sides). Conduit penetrations

shall be watertight through rigid hubs for the size conduit required on the Plans.

Pull Box shall include manufacturer recommended Cable Rack for storage of cable slack. The

Cable Rack shall be designed so it supports the cable maintenance coils (while maintaining cable bend

radius) such that they are not stressed while hanging on the rack. The Cable Rack shall also hold the

cable up off the bottom of the Pull Box. The Cable Rack shall be non-corrosive metallic material (hot

dipped galvanized steel, stainless steel or aluminum) with no sharp edges. The Contractor shall

submit, for Engineer approval, the Cable Rack shop drawings/cut-sheets of the materials and

installation.

Where required per NEC for conductive optical fiber cables or electrical service conductors, Pull

Box shall require a grounding electrode (ground rod) installed and meeting the Grounding

requirements of this Specification.

The Marker Post for fiber optic cable shall be of composite material and weigh less than 4 lbs. {1.8

kg}. All Fiber Marker Posts shall be dome designed for a minimum of twenty (20) year service life and

shall include the manufacturer’s tubular anchor system. Fiber marker post dimensions and installation

shall be in accordance with the Standard Drawings. The fiber marker post shall be white, UV resistant

and durable to extreme weather conditions. The dome area of the polyethylene post containing

graphics shall be black text on orange background and as shown on the Standard Drawings. The graphics

shall not fade, peel or chip and last the lifetime of the fiber marker post. The dome cover graphic

system shall be Engineer approved prior to being printed; and, shall be printed on opposite sides of

dome cover while maximizing the print space.

See corresponding Construction Section for fiber marker post label “proof check” sample and

approval requirements.

An electronic marker for detecting the CommBox shall be included. The electronic marker shall

use the Telephone dedicated frequency (101.4 kHz). It shall be a passive device, requiring no batteries,

with an RF field detectable with any standard marker locator. Working with a locator, the frequency

locate marker shall indicate the marker’s exact position within a five (5) feet diameter area.

Each video Surge-Protective Device shall provide inline overvoltage/overcurrent protection for a

single coaxial cable. The video surge-protective device shall employ a hybrid technology of gas

discharge tubes, silicon avalanche diode and current limiting components. Video surge-protective

devices shall have the following features:

Miscellaneous Infrastructure

917

Each Ethernet Surge-Protective Device shall provide inline overvoltage/overcurrent

protection for an outdoor rated CAT5/5E/6/6A data/control cable. The data surge-protective

device shall employ a hybrid technology of gas discharge tubes, silicon avalanche diode and

current limiting components. Data surge-protective devices shall have the following features:

Each Power over Ethernet (PoE) Surge-Protective Device shall provide inline

overvoltage/overcurrent protection for an outdoor rated CAT5/5E/6/6A data/control cable. The data

surge-protective device shall employ a hybrid technology of gas discharge tubes, silicon avalanche

diode and current limiting components. Data surge-protective devices shall have the following

features:

Each Data Surge-Protective Device shall provide inline overvoltage/overcurrent protection for a

two-pair (4-wire + shield) serial data/control cable. The data surge-protective device shall employ a

hybrid technology of gas discharge tubes, silicon avalanche diode and current limiting components.

Data surge-protective devices shall have the following features:

Each Power Surge-Protective Device shall provide inline overvoltage/overcurrent protection for

a three conductor 120-volt AC power feed within an ITS Cabinet. The power surge-protective device

shall employ a hybrid technology Metal Oxide Varistors (MOV) and thermal sensitive device for

disconnecting power from the load after an MOV failure. Power surge-protective devices shall have

the following features:

A surge-protective device consisting of directly connected MOV shall be installed at the incoming

electrical service lines and shall be located such that the connection leads are of minimum length.

Conductor leads shall be cut to length to ensure quick reaction time. The Contractor shall connect

the surge protector to the load side of the main disconnect in the controller cabinet. The surge-

protective devices shall have the following features:

Miscellaneous Infrastructure

918

neutral-ground

A surge-protective device consisting of directly connected MOV shall be installed at cabinet

locations at the incoming electrical service lines. The surge-protective device shall have the following

features:

The Uninterruptible Power Supply/battery backup system (UPS system) shall be used for the

management of power supplies to ITS devices. The UPS shall provide output power with user option to

function as single, dual, or line interactive conversion. The UPS unit shall be field hardened. The UPS

shall have trickle charge capabilities. The UPS shall provide backup power for a minimum of three days

for permanent and ten days for portable highway advisory radios. If providing backup power for other

ITS equipment as shown on the Plans, it shall be provided for a minimum of one hour. Batteries used

for a power supply shall be sealed gel type in the quantity and location (separate enclosure from the

ITS equipment) as shown on the Plans.

The UPS shall be monitored through a Graphical User Interface (GUI) capable of monitoring

performance and alarms as well as provide system management. The UPS shall display battery status,

input and output voltage, Amp hours, load, and run time.

Miscellaneous Infrastructure

919

DESCRIPTION SPECIFICATION

Input Voltage:

AC

DC

90 - 150 Vac

48 Vdc

Output Voltage:

AC

DC

120 Vac, true sine wave

12, 24, 48 Vdc

Power Regulation ± 4%

Response Time < 5 ms

Output Power Rated for intended load

Connection Type Dry Contacts, Type B receptacle

Temperature Operating Range -40°F to 165°F {-40°C to 74°C}

Humidity Operating Range 0 - 95% non-condensing

Housing Free standing or rack mountable (as shown on the Plans)

Communication Ports Ethernet SNMP, RS-232

Audible Alarm Utility power interruption, inverter failure, low battery

INDEX

A

abbreviations, 1

abutment and bulkhead anchors, 340

acceptance

acceptance inspection, 34

final acceptance, 35

for maintenance, 35

accidents, reporting, 55

adhesives, 792

advertisement for bids, 11

aggregate

bases and subbases, 150

coarse, 702

fine, 707

slope protection, 477

aggregate foundations, 456

air entraining additives, 716

asphalt pavement

asphalt binders, emulsions, 710

pay factors, 47

quality assurance, 45

quality control, 42

quality control, quality assurance, 42

referee testing, 47

sampling of lots and sublots, 46

smoothness, 212

test strips, 48

testing lots, 46

assignment of contract, 62

authority

of inspectors, 32

of the engineer, 27

award of contract, 19

B

backfill

at bridge structures, 123

at culvert pipes, 399

cement mortar flowable, 147

foundation, 119

barricade

permanent, 605

barricades and signs, 52

base, soil and aggregate

cement treatment, 153

classification, 150

lime treatment, 152

maintenance of work, 157

mixing, 151

placing, 155

sampling and testing, 156

shoulder, 156

bidders qualifications, 12

bituminous

base, 170

surface treatment, triple layer, 194

surface treatments, 174

bonds, 20

bridge deck overlay, 274

bridges, 353

construction requirements, 354

detour, 142

elastomeric bearings, 363

materials for construction, 354

precast non-prestressed concrete members, 363

prestressed concrete members, 369

reinforced concrete decks, 355

seals for joints, 388

Buy America, 36

C

cable guiderail, 502

cancelled work, 84

cement

masonry, 721

Portland Cement, 721

changed conditions, 22

claims

appeal board, 88

auditing, 91

committee, 88

compensation, 89

documentation, 90

notice of intent, 87

record keeping, 87

cleaning drainage structures, 407

clearing and grubbing, 99

coatings. See paint

cofferdam and pumping, 303

cofferdams or sheeting and shoring, 123

collusion, 15

combination bids, 16

compaction

density requirements, 164

of embankment, 115

of foundation backfill, 120

of lime stabalized roadbed, 141

of soil and aggregate base layers, 155

computer bidding, 15

concrete

acceptance, 298

chemical admixtures, 716

classification, 279

construction joints, 287

curing, 292

curing materials, 730

finishing, 295

forms, 288

handling and placing, 285

materials, 278

minor structure, 494

prequalification requirements for mixture design, 279

sampling and inspection, 282

seal, 304

INDEX

weather limitations for placement, 284

concrete pavement

cleaning and sealing joints and cracks, 270

construction requirements, 248

grinding pavement surface, 272

materials, 243

pressure grouting, 264

slabjacking, 260

smoothness, 256

conduits

electrical conduits under roadways, 694

construction fuel, 576

contaminated soil, 145

contract documents

furnished by the Department, 31

contract time

assignment of contract time, 73

beginning and end of contract time, 73

days work not permitted, 73

extension of contract time, 73

failure to complete work within contract time, 75

contractor's personnel

superintendent, 31

cooperation between contractors, 31

culverts

concrete box culverts, 390

corrugated metal, 401

pipe, 396

pipe end treatments, 493

curb

concrete curb and gutter, 499

D

default of contract, 75

definitions, 1–11

delineators, 591

density

embankment layers, 165

materials subject to compaction requirements, 164

modified and improved roadbed, 166

non-destructive testing devices, 164

roadbed or lime stabilization, 166

subbase and base layers, 166

disadvantaged business enterprise (DBE), 92

disqualification (from bidding), 12

drainage plane layer, 170

drains

grouted rubble, 487

slotted, 402

structures for (inlets, junction boxes), 495

trench, 413

drilled shaft construction

casing, 324

concrete placement requirements, 332

construction methods, 324

drilling equipment, 327

encased excavations, 329

materials, 323

slurry, 324

testing, 335

tolerances, 337

drilled shaft excavation

exploratory shaft excavation, 328

obstruction removal, 328

slurry, 330

dynamic message sign. See ITS

E

embankment, 110, 114

encasement pipe for utilities, 535

epoxy adhesive, 793

erosion control

excavation, 116

hydraulic erosion control products, 545

rolled erosion control products, 545, 786

temporary erosion control, 554

temporary seeding, 554

errors

plan and specifications errors, 30

excavation

benching, 114

borrow, 110, 114

channel, 110

disposal of surplus material, 116

finishing and dressing, 116

for bridges, 122

for structures other than bridges, 119

measurement, 117

muck, 110, 113

roadway, 112

roadway and drainage, 110

rock, 113

unclassified, 110

undercutting, 112

extra work, 81

F

fence

barbed wire, 514

chain link, 511

construction safety, 574

materials for fence, 793

reset, 515

woven wire, 512

field office, 463

final estimate documentation, 86

final inspection, 76

flowable backfill, 147

flumes

bituminous treated glass fiber, 489

soil cement flumes, 488

force account work, 81

fuel. See construction fuel

full depth reclamation, 159

INDEX

G

gas line, 531

pipe, and appurtenances, 788

geometric controls, 575

geosynthetics

reinforcement for slopes and soft soil, 143

geotextiles

for paving, 474

for permeable asphalt treated base, 468

for separation of soil and aggregate, 476

for underdrain, 469

material requirements, 717

graves, 108

guardrail, 505

guardrail materials, 791

relocate, 508

H

handrail for bridges and sidewalks, 379

hazard markers, 591

materials for hazard markers, 808

headlight glare screen, 510

herbicide

post-emergent, 569

pre-emergent, 566

highway advisory radio. See ITS

I

Immigration Law, Alabama, 19

impact attenuator

permanent, 613

portable, 614

truck mounted, 615

improved roadbed, 110

index

asphalt index, 80

construction fuel, 576

inertial profiler

asphalt pavement, 212

concrete pavement, 256

inlets for drainage structures, 495

inspection by the engineer, 33

ITS

burn-in, 646

cabinet, 638

cameras, 626

description, 616

dynamic message sign, 628

fiber optic cable, 619

highway advisory radio, 632

hub building, 641

license and certifications, 619

network devices, 625

pole, 640

power, 640

removal and relocation, 670

testing, 644

training, 648

vehicle detection, 627

warranty, 648

J

joint filler materials, 731

L

laboratories

asphalt plant, 40

base, soil and structure, 40

concrete plant, 40

field, 461

landslide corrections, 129

laws ordinances and regulations

bidders knowledge of, 18

compliance with, 49

lighting

nightime operations, 23

rehabilitation of roadway lighting, 692

roadway, 685

roadway lighting materials, 811

structures for, 608

lime

sinks, 134

stabilized roadbed, 139

lines and grades, 32

liquidated damages, 75

load restrictions for hauling, 33

lumber, 352

M

machine graded shoulders, 118

mailbox, 23, 109

maintenance of the work, 34

markers

land survey, 463

right-of-way, 463

masonry

brick and concrete block, 485

mortar, 483

rubble, 483

stone, 719

materials

department furnished, 41

found on right-of-way, 41

guarantee, 18

pits and waste areas, 37

requirement for new, 36

special acceptance requirements, 38

unacceptable, 41

median

concrete median barrier, 504

concrete median strip, 503

micropiles, 415

microsurfacing, 182

mineral admixtures, 715

INDEX

mineral filler, 714

mobilization, 460

MSDSAR, 38

N

nightime operations, 23

notice to contractors, 11

O

object markers, 591

P

paint, 769

partial payments, 84

patents, 49

pavement markers, 589

payments

final, 86

to subcontractors, 85

permeable asphalt treated base, 170

pest control, 564

piling

cut off lengths, 319

lengths of piles, 317

load testing methods, 315

materials, 308

pile points, 319

piling materials, concrete and steel, 735

splicing piles, 318

piling encasement, 306

pipe

relaid, 410

roadway pipe culverts, 396

roadway pipe rehabilitation, 411

side drain, 408

planing (milling) pavement, 192

police officer, 684

polymer additives for asphalt materials, 717

precast concrete products, 731

price adjustments

bituminous materials, 80

Q

quantities, 11

altered, 84

approximate quantities in contract, 13, 79

asphalt, 79

basis of payment, 80

final, 86

measurement, 77

R

reinforcement. See steel reinforcement

removal and relocation of structures, 102

removal of miscellaneous facilities, 104

repair of bridges, 380

repair of defective work, 80

retaining wall, 393

soil nail, 423

soldier pile, 445

riprap

construction requirements, 479

materials, 719

roadbed

lime stabilized, 139

processing, 135

stabilized, 138

rock slopes, 126

S

safety barrier, portable concrete, 614

safety markings, 591

sand and gravel for miscellaneous use, 729

sanitary sewer, 524

scoring pavement surface, 237

scrub seal, 239

application, 242

surface preparation, 241

seeds. See Vegetation Establishment

sequence of construction, 23

sewer

sanitary, 524

storm, 404

sheet piling, 319

shotcrete, 440

sidewalks and driveways, 491

signs

portable changeable message, 683

relocation and renovation, 603

sequential arrow and chevron, 681

sheeting type and class type, 597

sign materials, 798

structure renovation and relocation, 606

structures, 605

site conditions, 13

site conditions, differing, 22

slope protection

aggregate slope protection, 477

concrete slope protection, 486

slurry seal coat, 180

soil or aggregate surface, 238

special provisions, specifications and plans

coordination, 30

Specialty Items

Items

Specialty, 62

steel bridge coating, 381

steel reinforcement

fabrication and installation, 299

reinforcement materials, 736

steel required to be USA product, 36

structural steel, 341, 737

bolting, 748

structures for traffic signals, 608

INDEX

Suspension of Work, 72

T

tack coat, 188

taxes, 49

thin polymer overlay, 274

timber, 352

topsoil, 537

removal, 112

traffic control

devices for construction work zones, 675

maintenance, 23

markings and legends, 587

traffic signals, 655, 820

portable, 697

traffic stripe, 578

materials for traffic stripe, 771

U

unbalanced bidding, 16

underdrain

pavement underdrain, 469

pipe underdrain, 472

underground storage tanks, 145

underwater embankment, 111

utilities

cooperation with, 30

minor utility adjustments, 516

utility encasement pipe, 788

V

value engineering, 25

vegetation establishment, 539

acceptance, 541

mulching, 544, 780

seeding in stubble, 541

seeds, 776

sequence, 539

soil preparation, 539

solid sodding, 543

tree wells, 552

vines, shrubs and tree planting, 547

vines, shrubs and trees, 782

vehicle permit, oversize, overweight, 33

W

water for general use, 715

water line, 517

water pipe and appurtenances, 789

water wells, 101

waterproofing and dampproofing, 375