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http://blog.photoenforced.com/2010/12/how-do-red-light-cameras-work.html
Many traffic lights in Columbus use sensors to increase efficiency
Megan H9
Megan H9 May 09, 2013
http://blog.photoenforced.com/2010/12/how-do-red-light-cameras-work.html
Many traffic lights in Columbus use sensors to increase efficiency

I've seen these sensors...

Often 3
Occasionally 0
Rarely 2
Never 3
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Similar Photos: Bicycle parking lot with contact sensors and central data base with information of parking lot around the city and availability. Miniature Sensor Connectors from Binder Places available sensors for underground parking gives users real-time information to optimize the time to park.<br/>Reus,Spain

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