Quote:
Originally Posted by moike
Am I the only one thinking that the police officer would not be able to accurately determine the speed of a car traveling in the other direction (at least one that's not FLYING) while both cars are moving..? Radar, laser, vascar, etc all require the officer to be stationary.. The only thing he could've done while moving is match the speed, I think, but it sounds like he flipped the lights on as soon as he turned around? Hmmm, I'd say he either has no concept of how speed detection works.. or more than likely wanted a closer look at the nice new camaro! 
(Violation: [X]Speeding | Speed: 54 | Method used: []Vascar []Lidar []Radar[X]Ehh, I just kinda eye-balled it while traveling in the opposite direction..) |
That is NOT correct! Radar is used in 90% or more of all municipalities and the least expensive and very accurate. RADAR measures speed by Doppler shift, LIDAR calculates speed.
Pacing is also mentioned. Speedometers are certified calibrated and dead nuts accurate.
VASCAR is a set length over a certain time to calculate speed.
So, if an officer has RADAR, the doppler shift is capable to be utilized fore, aft, both or moving.
While in motion, the RADAR unit calculates the speed of the patrol vehicle against the forward progress of the target vehicle and speed is determined. Units MUST be calibrated and I usually calibrate mine beginning of day, whenever I write a ticket, and at end of day.
A Google search would have clarified the misconception of what is known and what is percieved to be known.
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It's got a cop motor, a 440 cubic inch plant, it's got cop tires, cop suspension, cop shocks. It's a model made before catalytic converters so it'll run good on regular gas. What do you say, is it the new Bluesmobile or what?