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Actuated Signal Timing

Actuated signals are like pretimed signals in that they are constrained by time limits, but unlike pretimed signals, actuated signals can change phases before they reach their time limits if the demand is low. They can even skip phases if there is no demand for that phase. For this reason, actuated signals are especially useful in low-demand settings, such as in rural areas or at night. 

To understand the basic concepts of actuated signals click on "Background." For hands-on experience developing and implementing signal timing plans for case studies, click on "Exploration."


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