Wisconsin WisDOT Standard Specifications (within FDM) — Section 675

Effective with the December 2018 Letting 512 2019 Standard Spec ifications Section 675 Controllers and Detectors

675.1Description

(1)This section describes installi ng department-furnished control lers for ramp meters, detector processor

assemblies, and microwave detectors.

675.2Materials

(1)The department will furnish controllers as specified in the co ntract special provisions.

675.3Construction

(1)Perform a series resistance test and resistance to ground test at each loop/lead-in circuit before

starting any work as specified in 670.

(2)For new loop/lead-in circuits, perform a series resistance test and resistance to ground test. Ensure

that the series resistance of each circuit is less than 5 ohms. Ensure that the insulation resistance of loop conductors to ground, and between adjacent loops/lead-in c ircuit is greater than 500 mega ohms as measured with a 500 volt megger test meter.

(3)If any work proceeds at a location without completion of the l oop detector testing, assume

responsibility for the ultimate correct operati on of the loop/lead-in.

(4)Secure ramp meter processor a ssembly cabinets on new, modified , or existing concrete bases at

locations the plans show. Provide bolted stainless steel connections with lock washers, locking nuts, or other engineer-approved means to prevent the connection nuts from backing off. Isolate dissimilar materials from one another by stainless steel fittings.

(5)Make power connections to the processor assembly cabinet as sp ecified in 656.

(6)Make detector cable and communications cable connections to th e processor assembly cabinet to

provide the required operation.

(7)Make traffic signal cable connections and electrical wire conn ections to the processor assembly

cabinet as specified in 658.

(8)Terminate signal current carrying neutral conductors on a neut ral strip mounted in the cabinet. Isolate

the neutral bus from the cabinet and equipment ground. Terminat e the neutral bus at the neutral lug ultimately attached in the meter pedestal.

(9)Ground all cable grounding shields and any spare or unused con ductors in the ramp meter processor

assembly cabinet to the equipment-grounding terminal strip.

(10)Isolate the equipment-grounding strip from the cabinet and cur rent carrying neutral. Terminate the

cabinet current carrying neutra l at the current carrying neutra l ground lug in the meter pedestal or breaker disconnect box.

(11)Reuse existing wiring to the ex isting, modified, or new concre te control cabinet base unless the

engineer directs otherwise. Wiring includes bonding wire, condu ctors and loop detector lead-in cable, and loop detector wire.

(12)Make connections among the processor assembly, multipoint device interface units, and telephone

interface modems at locations the plans show.

(13)The department will provide proc essor assembly firmware. The department will install the processor

firmware on contractor-supplied EPROM's. Pick up the EPROM's with firmware from the department, and install it into each controller before installation.

(14)Upon completing installation wor k at a location, before detector verification and conducting the testing

procedure, perform the new loop/ lead-in circuit series resistance test and resistance to ground test. Ensure that the series resistance of each circuit is less than 5 ohms. Ensure that the insulation resistance of loop conductors to ground, and between adjacent l oop/lead-in circui t, is greater than 500 mega ohms as measured with a 500 volt megger test meter. Docume nt the test results, and submit them to the engineer as part of t he set up to begin the testing procedure.

(15)Demonstrate the functionality and accuracy of the vehicle dete ctors connected to each location. Verify

that the traffic flow information obtained from each detector i s within +/- 5 percent of each of two 10- minute manual data periods.

(16)After installing the processor assembly; insta lling other ramp control signal assembly hardware,

detection hardware, communications hardware, power supply, and connecting cabling; and successfully completing, docum enting and presenting, to the eng ineer, testing and verification, the field system integrator, followi ng the contractor-submitted and engineer-approved te sting procedure, shall successfully conducted a fi eld test for each processor as sembly. The test is designed to demonstrate that hardware, cable, and connections furnished and installed by the contractor operates

Effective with the December 2018 Letting 513 2019 Standard Spec ifications correctly and that all functions are in conformance with the sp ecifications. It is not necessary to test all locations concurrently.

(17)Do not begin ramp meter processor assembly test until the foll owing have been accomplished:

- Testing of new and existing loop detectors. - Testing of ramp control signal wiring. - Submission of documented results to the engineer. - Installation of ramp signing and pavement marking, including HOV and trailblazing.

(18)The contractor may conduct the test within 48 hours after the field system integrator advises the

engineer that it is ready to begin the test, the processor is c ommunicating to central, and documentation has been presented. B egin the test once the field system integrator has satisfied itself that work has been completed at each processor assembly locatio n. After the processor assembly has been placed in operation, the field system integrator shall demonstrate that equipment furnished and installed by the contractor operates as specified.

(19)After successful completion o f the test procedure, test each p rocessor assembly for proper operation

for 30 consecutive days. During the testing period, ensure that contractor-provided equipment at the assembly location operates without failures of any type. If any component malfunctions or fails to provide the specifie d capabilities, durin g the 30-day test period, the field system integrator shall replace or repair the defective equipment within 48 hours of th e engineer's notification.

(20)After the component malfunction has been corrected to the sati sfaction of the engineer, begin a new

30-day test period. The 30-day te st applies only to contractor- furnished hardware. In the event of a failure of hardware fu rnished by others that prevents the 30-da y test from continuing, the engineer will suspend the 30-day test until the other hardware failures are c orrected, at which time the test will resume.

675.4Measurement

(1)The department will measure the bid items under this section a s each individual assembly acceptably

completed. 675.5 Payment

(1)The department will pay for measured quantities at the contrac t unit price under the following bid

items: ITEM NUMBER DESCRIPTION UNIT

675.0100 Install Controller Ramp Meter Processor Assembly EACH

675.0200 Install Controller Detec tor Processor Assembly EACH

675.0300 Install Mounted Controller Microwave Detector Assembly EACH

(2)Payment for Install Controller R amp Meter Processor Assembly a nd Install Controller Detector

Processor Assembly is full comp ensation for installing the processor assembly, for making connections, and for testing.

(3)Payment for Install Mounted Cont roller Microwave Detector Assembly is full compensation for

installing the mounting brackets on poles, for installing the microwave detector on the bracket, for making connections, for positioni ng the detector to provide the optimum field of view, for setting up and programming the detector, and for testing.

(4)The department will not pay for correcting the loop/lead-in or for correcting component malfunctions

exposed during the 30-day testi ng period. The department will not make complete payment under a bid item in this section until eac h processor assembly completes a successful test over 30 consecutive days without interruption by any contractor-furnished component malfunction.

Effective with the December 2018 Letting 514 2019 Standard Spec ifications Section 677 Cameras

677.1Description

(1)This section describes installi ng camera assemblies and associated poles, base plates, and camera

lowering systems.

677.2Materials

(1)The department will furnish camera assemblies and poles as specified in the contract special

provisions.

(2)Under the Install Camera Assembly bid item, furnish cables and connectors required to transmit video

and camera control data between t he camera assembly and the cam era controller assembly. Conform to the following:

1.Outdoor rated category 5e, or better, UTP cable with water- blocking flooded core and UV-resistant

polyethylene jacket. Furnish cabl e consisting of 4-pairs of 24 AWG solid copper conductors and according to ANSI/TIA/EIA 5 68A Category 5 e, CENELEC EN50173, ICEAS-90-6 61, and ISO/IEC 11801.

2.Outdoor rated CSA, certified for outdoor use, 3-conductor 1 6 AWG power, UL listed c able in a UV resistant

jacket. Furnish MSHA approved and RoHS compliant cable accordin g to CSA flexible cord - C22.2-49.

677.3Construction

(1)Under the Install Camera Pole bid item, install department-fur nished camera poles on new concrete

bases at locations the plans show and conforming to 657. Install contractor-fur nished identification plaques as the plans show.

(2)Secure camera poles to anchor assemblies conforming to the pro cedures enumerated in department

form DT2321. Complete department form DT2321 for each structure. Indicate the parties responsible for the installation and submit the form to the engineer for in clusion in the permanent project record.

(3)Provide incidental items, such as wire nuts, grommets, tape co nnectors, electrical nuts, etc.,

necessary to make the proposed cl osed circuit television (CCTV) system complete from the source of supply to the most remote unit.

(4)Assemble the camera, zoom lens, camera enclosure, and pan/tilt unit before delivery to the job site.

Deliver the assemblies to the job site as complete units, and install units on top of the camera poles using a pole mounting adapter as the plans show.

(5)Mount camera enclosures directly to the mounting plates of the pan/tilt drives.

(6)Mount pan and tilt drives to the poles as the plans show. Elec trically bond the pole-mounting adapter

to the pole. Electrically bond the pan/tilt drive to the mounti ng adapter.

(7)Mount the camera assembly so that when the pan and tilt unit is at the mid-point of its mechanical

motion, the orientation of the camera's line of sight is as the plans show.

(8)Provide camera cables in conduit and poles as the plans show. Provide continuous cable runs without

splices between the camera assembly and the camera controller a ssembly.

(9)Take every precaution to ensur e that the cable is not damaged during storage or installation.

Workmen should not step on cable or run over by any vehicle or equipment. Do not pull the cable along the ground or over or around obstructions.

(10)Keep cable ends sealed at all times during installation using a cable end cap from the department's

QPL. Do not use tape to seal the cable end. Keep the cable end sea led until connectors are installed.

(11)Do not exceed the minimum-bending radius of the cable at any t ime.

(12)Provide 6 feet of cable slack within cabinets

(13)The contractor or field system integrator shall furnish equipm ent, appliances, and labor necessary to

test the installed camera cable between the camera assembly and the camera controller assembly. Successfully perform the follo wing tests before any connections are made.

(14)Perform continuity tests on the coax element of the camera cable using a metallic time domain

reflectometer (MTDR) with chart recorder. Camera cable shall no t exhibit any discontinuities such as opens, shorts, crimps, or defects.

(15)Use a purpose built “Pass-Fail” network cable tester to test t he network cable installation for category

5, class E compliance. Repair c onnections or cable as needed fo r the test to register a “Pass”.

(16)Measure the insulation resistance between conductors, and between each conductor, ground, and

shielding using a megger. Ensur e that the resistance is greater than 500 mega ohms.

(17)Should any cable fail to meet the test parameters, or should any testing reveal defects in the cable,

replace the cable at no expense to the department. Retest the n ew cable as specified above.

Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 521–522 of 601.

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674 Intelligent Transportation Systems - Cable

677 Cameras