This text offers a detailed coverage of traffic signal design, display, configuration, control, construction, wiring, timing and the logistics of carrying out work.A pull box is an underground compartment made of various materials such as steel, concrete, plastic, and so forth, which provides access to the cable through a covered opening. Pull boxes located ... A pull box is located adjacent to the controller cabinet, each signal pole, and each detector location. Pull boxes come ... Pull boxes should be spaced not more than 175 feet apart except on long single-cable runs where the allowable spacing may be doubled to 350 feet. Care should beanbsp;...
Title | : | Manual of Traffic Signal Design |
Author | : | James H. Kell, Iris J. Fullerton, Institute of Transportation Engineers |
Publisher | : | Englewood Cliffs, N.J. : Prentice Hall - 1991 |
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