Speed Limit Enforced by Aircraft
Huh? So, I’m driving home from NC this morning and as I make my way through Virginia I keep seeing these signs telling me that “Speed Limit [is] Enforced by Aircraft”. I’ve seen these signs before but I never really thought too much about them. I always just assumed that there was some type of plane or helicopter that would fly over the road and time your car as it passes through the lines. Today I started to think that maybe they had something a little more fancy setup. Maybe they could somehow use satellites combined with stuff on the ground to track your speed? Anyway, I checked into it when I got home and found out that they actually DO track you with airplanes.
Apparently the VA police have a few Cessna airplanes which they use to monitor the speed that cars travel between the big lines on the road. They can use a VASCAR system to electronically time how long it takes your car to get through a fixed length “speed trap”. If they find your car to be speeding they will work together with some police on the road to track you down.
It sounds to me like an empty threat. Sure, they can theoretically monitor your speed by aircraft…but how often do you see a plane flying slowly above you on the highway? Plus, the planes are expensive to maintain and fly. Conclusion: I’m not too worried about these police in the sky. ;)
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