Originally Posted by mattvortex

always tickles me when you see the traffic up ahead driving at a constant 69.999mph behind a marked patrol car. i always cruise on past at about 80 and ive never been done for it. think most traffic police are human enough to realise that on a clear motorway , its fine and i dont think theyd bother with anything under about 85. not sure about that stretch of M4 though!

Originally Posted by FirebirdUK

Yup - aerials seems to be the only giveaway...

Along the M4, between Bath and Bristol, you sometimes see a Vauxhall Omega (WV52 ***) - it's a dark wine sort of colour. Again, apart from the aerials, you wouldn't tell... Except when you see it on the hard shoulder - the standard lights (brakes, indicators, etc. flash in a circular pattern) - the blue lights on the front are hidden behind the grille (you don't see them until they flash).

Sneaky eh?

Originally Posted by WRXPete

And VASCAR can be used stationary or on the move....it's basically a calculator. Most common way is to use bridges on the motorway. Target car passed under bridge which cast a shadow on the roof of the car, timer 1 goes on. Police pass same bridge, timer 2 goes on. After at least 1/8 of a mile do the same to stop both clocks.
VASCAR knows how far both cars have travelled and in what time, so it can work out the target cars speed.
When stationary it measures a set distance. Pass under a couple of bridges and let it measure the distance then simply put that in as a constant, park up, look back and again use the shadows to see how long the car takes to cover the known distance. It's harder to spot cars going fast as you are normally some way up the road, and you need to be happy you kept your eyes on the same car throughout, then you have to catch it as you are stationary....so it's a no go in rush hour!!!!

Originally Posted by DannyBoy007

As a rule, I alway keep an eye out for newish looking, 2-3lt Vauxhall's, Ford's , Merc's, Volvo's, doing around 70 in the slow lane with no dealer info on reg plate.

Originally Posted by mightyyid

Very fair point - only there is no such thing as a 'slow' lane on either motorways and dual carriageways....

One of my major bug bears I'm afraid gents - if people drove in the left lane when appropriate, people would stop moaning about traffic congestion, and make our motorways 3 lanes instead of 2!

Andy

Originally Posted by Ralph Wiggum

this also annoys me, too, there is one normal driving lane, and two overtaking lanes no slow or fa
st lane, speed limit it 70

Originally Posted by bluepolarbear

This is wrong also. The car would be equipped to measure speed on the move. The box by the mirror would be the video camera and the car will be equipped with VASCAR which uses neither laser or radar.

Originally Posted by dexter

This isn`t wrong mate, you just read it wrong.

Your speed cannot be detected, with a laser video, whilst their car is on the move.......................Which is what I said before, but in a different way.

I never mentioned VASCAR because the author was worried that he may have been clocked on video.

Originally Posted by Freak

You cant use laser from inside a vehicle at all- must be from outside the car- therefore stationary. (well, they can use it to clock you- but it is inadmissable as evidence as it contravenes the operating rules)

Originally Posted by bluepolarbear

Not quite - it can't be use through glass, wind the window down or as in the case of SCP open the backdoors and it can be used stationary inside the vehicle

Originally Posted by dexter

FAO Freak: Mate, have you never seen the Police on overhead Motorway bridges ? They may use something like a Ford Galaxy, or similar, with the side door open, and are sat inside pointing right at you as you burn down lane 3 (not suggesting that you, personally, do that, of course )