Quote:
Originally Posted by Bigtime
I wonder if they use a sensor mounted in the road as well? I swear the camera on Macleod North and 12th Avenue SE goes off whenever someone pulls up a little too far at the intersection. But only one camera flash goes off, the second never comes since the car is stopped at the intersection.
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I think that's how they determine the whole running a red light thing. Pads under the road, triggered when a car drives over it (in this case rolls), while the light is red. It then sends a signal to camera to take a picture.
At least that's what CSI told me.
I am sure you can find the real solution somewhere on the interweb.