"Presence Sensors" Save Bicyclists By Controlling Traffic Lights

A new system using "microwave motion" sensors can detect when a bicyclist enters an intersection and control traffic to accommodate them.
October 8, 2011, 1pm PDT | Tim Halbur
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The system, called "The Interceptor", is currently being tested in Pleasanton, California.

Jessica Mulholland of Governing Magazine talked with Pleasanton Senior Transportation Engineer Joshua Pack:

"When the sensor detects a bicycle, it triggers the timing of traffic lights one way, and when it detects only cars, it triggers a different timing scheme. The better pacing of green lights provides a safer crossing," Pack explained.

Pack likes the system, but is concerned about increasing delays when his city's traffic is primarily automobiles.

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Published on Tuesday, October 4, 2011 in Governing Magazine
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