Quote:
Originally Posted by s20525xxx
The induction coil is obviously the method for detecting red light running. I think the speed camera uses the coil as a starting point and laser beam, which came from one of the smaller head, as a reference point, then it calculate time a car travel between this length.
I think thats the possible explaination, while they cant be detected by V1 (the laser beam uses different frequancy more close to laser aligner), but still calculate speed pretty well with slightly high tolerance than poliscan.
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NO - they calculate your speed by measuring the time taken between the first and second strip in the road (time & distance known = speed calculated).
This speed is then verified by a second reading taken from the second and third strips in the road.