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Go Back   REVscene Automotive Forum > Automotive Chat > Police Forum

Police Forum Police Head Mod: Skidmark
Questions & info about the Motor Vehicle Act. Mature discussion only.

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Old 10-15-2009, 01:10 AM   #1
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Police radar while exiting a curve

Is it possible that a police radar you while driving at opposing lane the moment you exit a curve?

I know that may sound confusing. What happened was that I was biking with a friend exiting a parking lot of the cypress bowl run. We were exiting a curve at the same time as the cop entering the curve. He did a u-turn behind us and turned on his siren. He pulled us over and claim that he radared us riding at 110km/h.

Is this possible?
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Old 10-15-2009, 01:18 AM   #2
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You should have bought a V1 for your bike
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Old 10-15-2009, 01:29 AM   #3
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Sure it is possible. I don't see why you couldn't be tagged but was it a radar or a laser? They are pretty different devices.

But most importantly, were you speeding at that speed?
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Old 10-15-2009, 01:31 AM   #4
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i dunno what he used. I dun think i can exit that corner at that speed though. My question is can the device be accurate since he is probably also driving at abt 60km/h on opposite lane?
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Old 10-15-2009, 03:19 AM   #5
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Quote:
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Sure it is possible. I don't see why you couldn't be tagged but was it a radar or a laser? They are pretty different devices.

But most importantly, were you speeding at that speed?
How can you tell someone speed going around the corner? Last time I checked light (assuming he was using laser) doesn't go around corners. The only way the cop would be able to get a reading is if his car was directly infront of him going around the corner in which time the laser gun *might* be able to get a reading which is unlikely. Whatever device he was using defies physics as you cannot bend the signal, but this also depends on the corner and they layout of the road.
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Old 10-15-2009, 06:27 AM   #6
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Radar beam is cone shaped and will get target readings on a corner from an oncoming vehicle. The cosine effect will give you a lower recorded speed by a few kmh at extreme angles. Laser only works from a stationary position. It shoots in a straight line and can get readings at an angle. You do not have to be directly in front of the target to get a reading.
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Old 10-15-2009, 07:46 AM   #7
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Ah, but you can "bounce" radar around a corner by reflecting the beam off of a concrete barrier. I used to play with that sitting on the side of the road using radar in stationary mode.
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Old 10-15-2009, 11:39 AM   #8
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Kinda like a mirror bounce eh?
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Old 10-15-2009, 09:21 PM   #9
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i dunno what he used. I dun think i can exit that corner at that speed though. My question is can the device be accurate since he is probably also driving at abt 60km/h on opposite lane?
The radar in the police car is designed to pick up the speed of oncoming traffic and has settings for both if the police vehicle is stationary and if the police vehicle is in motion.
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Old 10-16-2009, 08:12 AM   #10
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...and if the target is approaching the Radar from the front, or rear...or if the target is pulling away in either front or rear. Just select appropriate settings on the unit.
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Old 10-19-2009, 04:24 PM   #11
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It works fine in that configuration and if aything would be displaying a speed less than what you were travelling at....

Radar covers a very large area very quickly so would not have issues with a curve....
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