Скачать или смотреть Traffic Signal Systems: Go for the Green

Demonstrates the need for planned and coordinated traffic signal systems and highlights current best practices. Part 1 is for public works officials, chief executives, citizen groups, and other decision makers showing the benefits of planned, coordinated traffic signal systems and showing the basic hardware and software used for good traffic control signalization & synchronization. Topics include timing plans, pre-timed and traffic actuated signals, coordinated systems, control centers and more. Part 2, the slightly more technical part, focuses on available hardware and software and is meant for the traffic engineers and technically oriented city and county decision makers.

This film is available courtesy of FedFlix (public domain).
From The Crittenden Automotive Library @ http://www.CarsAndRacingStuff.com