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On my bike ride this morning, I took this picture of pavement sensors under the road that sense when to change the traffic light.
Jennifer C24
Jennifer Cowley Professor, City and Regional Planning May 05, 2013
On my bike ride this morning, I took this picture of pavement sensors under the road that sense when to change the traffic light.

I've seen these sensors...

Often 3
Occasionally 3
Rarely 3
Never 4
What is it? 0
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Similar Photos: Lytro Camera Lets You Focus Photos After You Take Them. A warm hug is the best gift we can ever get from others – your parents, kids Hi everyone.<br/>I use often this traffic counter form my job. This instrument is a radar car counter and track:class, speed and headway.

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