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Division 600 — Incidental Construction

633Section 633

OH · 2023 (rev. 7/17/2026) Standard Specifications✓ Full text on BuildSpecBook pages 580–584 Save this section

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633.01 Description. This work consists of furnishing and installing traffic signal control

equipment, including cabinets, auxiliary equipment, and specified accessories, completely wired, at the locations shown on the plans and ready for service.

633.02 Contractor Personnel Requirements. Conform to the requirements of Supplement 1063

for the installation or testing of traffic signal equipment.

633.03 Materials and Equipment . Furnish new materials and equipment of first quality, of

current design, and free from defects. For warranted items, “new” items shall have a manufacturing date (determined by serial number) within one (1) year of the date of shipment to the project as determined by the required warranty decal. Use electrical parts, wire, switches, and other elements of the installation capable of carrying the required current without excessive heating or drop of potential. Ensure that each item of equipment bears a nameplate, indelible marking, or brand that identifies the type, model, catalog number, and manufacturer. Use equipment conforming to the types, models, and systems specified. Furnish material and equipment conforming to: Concrete (cabinet foundations and work pads) QC Misc or QC 1[1] .................. 499, 511 Conduit ............... 725.04, 725.051, 725.052 Cabinet and auxiliary equipment ..... 733.03 Cabinet riser ..................................... 733.04 Flasher controller ............................. 733.05 Remote monitoring station ............... 733.07 Uninterruptible Power Supply ......... 733.09 [1] Provide a Concrete Cylinder Cure Box per 511.04.

633.04 Shop Drawings. Furnish shop drawings according to 625.06.

633.05 General. Ensure that major items of traffic signal control equipment used in combination

are compatible, interchangeable, and, whenever feasible, provided by the same manufacturer or supplier. Ensure that controller cabinets are shop prewired according to 632.05. Before starting installation, furnish to the Engineer , two copies of each cabinet wiring diagram, service manuals, and installation and maintenance instructions for each installation, including all components and interconnections. Supply one additional copy of the cabinet wiring diagrams in a clear plastic pouch fastened to the inside of the controller door. Before beginning the 10 -day performance test, replace or modify these documents as necessary to reflect current conditions. Upon completion of the work and before its acceptance, replace or modify the documents as necessary. Transfer manufacturers’ guarantees or warranties on all installed traffic signal control equipment to the maintaining agency upon completion and acceptance of the project. If required by the plans to install equipment furnished by others, store and care of the equipment upon receipt.

633.08 Cabinets. Mount cabinets by attaching to pedestal or pole or by installing on a concrete

foundation. Arrange foundation mounted cabinets so that control equipment, terminal blocks, or shelves are no closer than 6 inches (150 mm) to the top of the foundation. Attach pole or pedestal mounted controller cabinets at a height that allows convenient access to all controller components by service personnel. Make field connections for the conductors of signal cable, power cable, interconnect cable, and detector lead-in cable. Neatly arrange and route all field wiring to the appropriate terminal blocks. Identify field wiring according to 725.02 except mark with either indelible pen or embossed letters. Except for power wiring, fit field wiring entering the cabinet with spade terminals to ensure a good connection. For incoming power wiring, either use spade terminals or connect the bare conductor wire to terminal points utilizing screw or spring applied clamping surfaces compatible with either copper or aluminum wire and providing a positive grip. After completing field wiring, seal the conduit entering the cabinet in an approved manner with a removable sealing compound (no foam sealants), or a molded plastic or rubber device that is compatible with the cable jacket, the insulation, and the conduit material. For foundation mounted cabinets, seal the joint between the controller cabinet and the foundation with a quality, clear silicone caulk. When future phasing configurations are shown on the plans, furnish the cabinet and hardware to accommodate the future operation through only the future addition of load switches and detector units. Provide a riser with each ground mounted cabinet. Cabinet risers provide an extension of the cabinet between the ground mounted cabinet and the foundation. Bolt the riser to the foundation, and bolt the cabinet to the riser. Use a type (size and shape) of cabinet riser compatible with the type of controller cabinets specified for the project. Seal the joints between the controller cabinet and cabinet riser, and between the cabinet riser and foundation with a quality, clear silicone caulk.

633.10 Foundations. Construct foundations for controller cabinets according to 632.14, except

that excavation by earth auger is not required and the foundation may be mass concrete that does not require reinforcing steel. Hold anchor bolts, conduit ells, and similar appurtenances in the proper position until the concrete has set. Pour foundations separately from controller work pad.

633.11 Controller Work Pad. Construct controller work pad according to 608.03, except that

transverse joints are not required. Provide the top of the pad nominally 1 inch (25 mm) above ground line. The work pad shall encompass three sides of the cabinet foundation. Pour controller work pad separately from foundations.

633.12 Flasher Controller. Furnish and install a flasher controller with cabinet and mounting

hardware when indicated. The flasher controller is for the operation of flashing beacons.

633.16 Training. Furnish training for the traffic signal control equipment installed as part of the

Contract. Furnish all handouts, manuals, and product information. For the training, use the same models of equipment furnished for the project. The maintaining agency shall furnish the facilities in which the training will take place. Furnish all media and test equipment needed to present the training. Unless otherwise shown on the plans, the minimum training requirements are as follows:

A.Sixteen hours on how to operate the system, analyze system performance, and revise critical operating parameters.
B.Eight hours of field trouble-shooting and maintenance procedures.
C.Eight hours of follow -up training after the maintaining agency has operated the system for a minimum period of 30 days.
D.Four hours for preemption device training if emergency vehicle preemption is shown on the plans.

633.18 Uninterruptible Power Supply (UPS). Furnish and install a Battery Backup UPS system

to provide uninterruptible, reliable, emergency power to a traffic signal intersection in the event of a power failure or interruption. The transfer from utility power to battery power shall not interfere w ith the normal operations of the traffic controller, conflict monitor or any other peripheral devices within the traffic control system. The system shall be self-contained including all UPS hardware, the required number of batteries and its own separate ventilated enclosure. A ground rod (paid for separately) shall be provided for free-standing UPS cabinets. Provide a riser with each cabinet. Cabinet risers provide an extension of the cabinet between the ground mounted cabinet and the foundation. Bolt the riser to the foundation, and bolt the cabinet to the riser. Use a type (size and shape) of cabinet riser compatible with the type of controller cabinets specified for the project. Seal the joints between the controller cabinet and cabinet riser, and between the cabinet riser and foundation with a quality, clear silicone caulk.

633.19 Method of Measurement. The Department will measure Cabinet, Type ___ by the

number of each complete prewired cabinet installed, and will include all required auxiliary equipment and loop detector units (excluding controller unit), with all items completely wired and tested. Ground mounted cabinets will include anchor bolts and conduit ells for installation in the foundation. Pole mounted cabinets will include pole mounting hardware. The Department will measure Cabinet, Type ___, Furnish Only by the number of each complete prewire d cabinet, and will include pole mounting hardware, riser and anchor bolts, but will exclude installation, controller unit, and detector units. The Department will measure Cabinet Foundation and Controller Work Pad by the number of each complete unit, in place, complete and accepted, and will include excavation, concrete, backfilling, and disposal of surplus excavation. Cabinet foundation will include preformed joint filler between the foundation and adjacent paved areas. One complete Controller Work Pad unit may encompass several sides of a controller cabinet installation. The Department will measure Flasher Controller by the number of each complete flasher assembly with cabinet installed and tested. The Department will measure Communication service by the number of each location shown on the plans for furnishing Communication service to an intersection controller, and will include the modem, conduit, trenching, and wiring. The Department will measure Training on a lump sum basis, and will include providing the instruction materials, instructor travel expenses, and test or media equipment for presenting the training material. The Department will measure Uninterruptible Power Supply by the number of each and will include all equipment, testing and certifications.

633.20 Basis of Payment.

The costs to obtain and maintain telephone service of cellular by the supply agency are included under Communications. The Department will pay for accepted quantities at the contract unit prices as follows: Item Unit Description 633 Each Cabinet, Type ___ 633 Each Cabinet, Type ___, Furnish Only 633 Each Cabinet Foundation 633 Each Controller Work Pad 633 Each Flasher Controller 633 Each Communications 633 Lump Sum Training 633 Each Uninterruptible Power Supply

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Source: Construction and Material Specifications, 2023 (rev. 7/17/2026) Edition. Pages 580–584 of 892. View official source ↗

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