Town of Poughkeepsie Police use this spot to catch speeders traveling northbound on US 9. From this spot, the police have a very long sight range and it is very hard to see the police officer until it is too late. Lidar(laser) is used.
See:
en.wikipedia.org/wiki/Lidar
auto.howstuffworks.com/question396.htm
Category: police station trap speed traffic enforcement camera / detector
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