2550Traffic Management System

2550.1DESCRIPTION

This Work consists of providing and installing Intelligent Transportation System (ITS) and Traffic Management System (TMS) components, including electrical service, for communications, traffic control, surveillance, and motorist information. A Acronyms For the purpose of the Work specified in section 2550, “Traffic Management System,” and 2565, “Traffic Control Signals,” acronyms in Table 2550.1-1 represent the full text shown in the table.

Table 2550.1-1 Acronyms Used Acronym or Short Form Full Name or Meaning BD-4 TWP (Twisted Pair) Distribution Pedestal (Splice Cabinet) BD-7 TWP (Twisted Pair) Distribution Pedestal (Splice Cabinet) DMS Dynamic Message Sign FC-PC Field Connector-Physical Contact FDF Fiber Distribution Frame FNMC Flexible Non-metallic Conduit FO Fiber Optic FOTP Fiber Optic Test Procedure JB Junction Box LC Lucent Connector LCS Lane Control Signal LTU Line Terminal Unit MIL Military MM Multimode NESC National Electric Safety Code NID Non Intrusive Detection OTDR Optical Time Domain Reflectometer PTZ Pan Tilt and Zoom PV Pull Vault RCS Ramp Control Signal RTMC Regional Traffic Management Center RUS Rural Utilities Service SGU Sheath Grounding Unit SNR Signal to Noise Ratio SS Stainless Steel STP Shielded Twisted Pair SM Single mode ST Straight Tip TIA Telecommunication Industry Association TWP Twisted Wire Pair XLP Crosslinked Polyethylene ZDW Zero Dispersion Wavelength

2550.2MATERIALS

A General Provide Materials and Equipment and perform Work meeting the requirements of the National Electrical Manufacturers Association, the Electronic Industries Association, NRTL, NEC, NESC, local codes and ordinances, these Specifications, and as required by the Contract. Warranty all furnish and install Materials, furnish and install workmanship, and workmanship on Materials that are paid for as an install item for a minimum of 6 months after 1516.2, “Project Acceptance.” Specific items within these Specifications may require longer warranty periods. Provide Department with all required pass through manufacturer warranty claim information.

B Conduit

2550.3CONSTRUCTION REQUIREMENTS

Before starting Work, submit a written statement that identifies all Subcontractors performing the Work contained in 2550, “Traffic Management System.” A Cable Installation A.1 Cable Installed In Conduit If pulling cable into conduit by hand or machine, use a limiting device to prevent exceeding the pulling tension specified by the manufacturer. If pulling cable, apply a Material compatible, industry accepted lubricant to the cables to reduce pulling tension. Install each cable with slack in accordance with the manufacturer’s recommendations to prevent disconnection or damage from contraction . Do not use damaged cable. Remove abandoned cables from each conduit. Ensure the operating TMS remains active while removing the cables. A.2 Copper Cable Installation Repair Contractor damaged TMS cable as approved by the Engineer. Do not use buried splices. Splice telephone cables in BD-4 and BD-7 cabinets with a weather resistant, crimp connector designed to splice three No. 19 conductors. A.3 Fiber Optic Cable Installation Use manufacturer-recommended Equipment to ensure the cable is not damaged by exceeding the maximum tensile strength and violating the minimum bend radius . Make continuous and steady cable pulls between pull points.

Complete direction changes of fiber optic cable before entering a HH/PV or other conduit access point. Do not pull fiber optic cables through HH/PV. This applies to both the horizontal and vertical directions. Install fiber optic cable in orange colored split conduit through the HH/PV. Extend the conduit 2 inches beyond the wall of each HH/PV and seal the conduit to the HH/PV with duct seal. Splice optical fibers only in outdoor fiber splice enclosures and fiber splice panels . Do not splice between cabinets and splice vaults. Continuously monitor the tensile load on the cable. The transition from 1 elevation to another shall not exceed 1 foot vertical per 5 foot horizontal if installing fiber optic cable in existing conduits in HH/PV. Reinstall existing conduits if necessary to provide the transition for the cable installation, at no additional cost to the Department. B Cabinet Installation B.1 Two Working Days’ Notice Notify the Engineer two Working Days before removing an active cabinet from service. B.2 Secure and Seal Secure the cabinets to the concrete foundation with anchor rods, nuts, and washers. Seal the cabinet base to the foundation with a 1/4 inch by 2 inches, 1 piece neoprene gasket. B.3 Conduit Install conduits at the center of the cabinet base and extend 3.15 inches above the foundation. C Dynamic Message Signs (DMS) Provide Dynamic Message Sign (DMS) Structures and mounting hardware in accordance with 2564, “Traffic Signs and Devices.” Ensure that the installation of DMS electrical Equipment located on the sign Structure does not protrude over the walkway, or interfere with moving the walkway safety rail or with opening the sign door. Install the 120/240 VAC to the sign within 7 Calendar Days after installation of the DMS to enable operating the ventilation units. D LCS Provide LCS mounting hardware in accordance with 2564, “Traffic Signs and Devices.” E Restore Shrubs and Bushes Restore shrubs and bushes damaged by Contractor Activities in accordance with 1712, “Protection and Restoration of Property.” F Handhole/Pole Vault (HH/PV) Make openings in the side of HH/PV water tight with a compound that is compatible for adherence to both the PVC HH/PV and the conduit Material.

Fill HH/PV abandoned in sodded areas, with tamped granular Material in accordance with 3149.2E, “Aggregate Backfill.” Secure the Department-provided HH/PV locator ball to an eye bolt with a 1/4 inch wide wire wrap. Locate the Department-provided HH/PV locator ball within 1 foot of the HH/PV cover. G RCS Cover each installed RCS until starting the system operational test. H Conduit Install conduit in accordance with 2565.3D, “Conduit, Fittings, and Junction Box Installation” and the following: H.1 Conduit on Bridges Provide and install deflecting expansion joints meeting NEC requirements. H.2 Factory Bends Factory bends in conduit 3 inches in diameter or greater require a minimum bend radius of 36 inches. H.3 Bored Conduit and Non-Metallic Conduit Place all conduit under Roadways continuous without joints. I Foundation Locations The Engineer will stake the actual locations of the foundations, outside the clear zone, and as far from the paved portion of the Roadways as practical. J Bonding and Grounding ................................................................................................... 2565.3H Include ground(s) rod with each foundation. J.1 Ground Cable Wrap ground cable with green electrical tape in cabinets and HH /PV through which the cable passes. J.2 Shield Continuity Maintain the electrical continuity of the cable shields while terminating and splicing cables. Install shield bonding meeting the requirements of RUS splicing Standard PC -2, Section

3.3Provide bonding connectors meeting the requirements of RUS Specification PE -33 for Cable

Shield Connectors. Bond and ground the cable sheaths to a 15 feet by 5/8 inch diameter ground rod. K Loop Detector Installation Install loop detectors as required by the Contract and as follows: K.1 Loop Detector Conductors End loop detector conductors in the near HH/PV. Splice the conductors to the lead-in cable with a soldered butt splice. Wrap the splice with one wrap of electrical tape before placing into the splice encapsulator device. L Fiber Optic System L.1 Outdoor Fiber Splice Enclosure Bond each outdoor fiber splice enclosure to the cable armor with a cable clamp and to the closest ground rod with a 1/C No. 6 ground wire and clamp. Provide outdoor fiber splice enclosures with non-oxidizing coating on the connections.

L.2 Fiber Splice, Patch, Splice/Patch Panel Mount the fiber splice, patch, splice/patch panel as required by the C ontract. Secure the fiber optic cables and pigtails to the splice, patch, splice/patch panel . Ground the shields by bonding them to the splice, patch, splice/patch panel ground lug. L.3 Fiber Optic Splice Vault Place the fiber optic splice vault on 12 inches of filter Aggregate in accordance with 3149.2H, “Coarse Filter Aggregate.” Seal and flash test the vault as recommended by the manufacturer. Coil 75 foot of cable for each entrance and exit in each vault containing splices. M CCTV Hardware Orient the lightning rod away from the Road at approximately 90 degrees to centerline.

2550.4METHOD OF MEASUREMENT

The Engineer will only measure items for payment that are completed and accepted. A Traffic Management System Components The Engineer will measure the various system components by the units of measure required by the Contract.

2550.5BASIS OF PAYMENT

The Department will:

1906, “Partial Payments”

the Engineer The Contract Unit Price for ___ Foundation includes the cost of providing the Material and providing and installing the Foundation required by the Contract. For cabinet foundations included as part of a larger pad, the cabinet foundation includes the concrete and conduit under and adjacent to the cabinet. For service foundations included as part of a larger pad, the service foundation includes the concrete, conduit, and conductors under and adjacent to the service Equipment. The Contract Unit Prices for TMS Contract Pay Items include the cost of providing and installing each item.

The Department will pay for TMS on the basis of the following schedule: Item No. Item Unit

2550.502 ___ Foundation each

2 Handhole Type ___ each

2 Junction Box each

2 Fiber Optic Splice Vault each

2 Outdoor Fiber Splice Enclosure each

2 Buried Cable Sign each

2 Armored Fiber Optic Pigtail each

2 Loop Detector Splice each

2 Ramp Control Signal Design ___ each

2 Flasher Signal each

2 Lane Control Signal each

2 ___ Cabinet each

2 Service ___ each

3 ___” Bored Conduit linear foot

3 ___” Rigid Steel Conduit linear foot

3 ___” Non Metallic Conduit linear foot

3 ___ Cable ___ Pr. No. ___ linear foot

3 ___ Cable ___ Conductor No. ___ linear foot

3 ___ Cable ___ linear foot

3 Fiber Optic Trunk Cable ___ MM ___ SM linear foot