Papers > Technology > Vascar Vs Radar for the Police
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Vascar Vs Radar for the Police
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Most people have experienced the "oh no" feeling after seeing a police car in the rear view mirror. ... You think to yourself, is there a police car there, or am I safe to go the speed I am currently going. You drive past and see that there is no police car, and speed off down the road. But as you travel farther down the road at a high rate of speed you pass a hidden police car, but there are no white lines on the road. ... Traffic enforcement is the most recognizable and universal police function. Marked police cars are easy to see and most Americans have been stopped for a traffic violations by those cars. ...
VASCAR (Visual Average Speed Computer and Recorder) is really a stopwatch coupled with a calculator. ... When a officer sets up to use the vascar unit in the car, he tries to pick a spot by the white lines where he can be hidden from on coming
traffic. ... This is the only traffic enforcement device local police departments are allowed to use in the common wealth of Pennsylvania. The other type of device that is used, is only used by the Pennsylvania State Police.
The other type of device used in traffic enforcement is radar. Radar guns work on a principle called the Doppler effect. ... Radar guns send out a microwave signal. ... It will be higher if the object is moving toward the police car, and lower if it moving away from the car. The sensitive receivers built inside the radar gun
pick up the reflected signals, and computes the results in miles- per- hr (MPH).
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Paper Information
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Title: Vascar Vs Radar for the Police
Words: 1308
Rating: None
Pages: 5.2
submitted by: footb69
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