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Behind the Scenes - Traffic Signal Control

"Behind the Scenes: Traffic Signal Control" introduces students to the complex task of timing traffic signals. The exercises included in this module accomplish the following:

  1. demonstrate congestion at an intersection and how that impacts movement through the intersection;
  2. discuss the importance of traffic signal control and types of traffic signals used around the world, including basic terminology and signal theory;
  3. provide students with an opportunity to develop a physical lane design and timing plan for a model intersection;
  4. allow students to use traffic signal preemption at railroad grade crossings to determine if a vehicle will be struck by an oncoming train; and emphasize the importance of safety at highway-railroad grade crossings.

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