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Public parking at the Chinook Mall in Calgary has sensors that turns the light green when the stall is vacant: safety up, emissions down.
Robin L1
Robin L1 May 07, 2013
Public parking at the Chinook Mall in Calgary has sensors that turns the light green when the stall is vacant: safety up, emissions down.

I've seen these sensors...

Often 4
Occasionally 2
Rarely 2
Never 4
What is it? 0
2 Comments     12 Tags
Similar Photos: Bregenz’s Floating Stage on Lake Constance Square credit card terminal for iPhone 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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