avarage speed cameras

[hovis]

how do they work?

if they take shots from the front, i take it that they wont get bikes?

[rigor]

Two cameras set a known distance apart, first logs all number plates, as does second, the system then calculates speed and flags up for a fine if needed.

They can face forward or backwards (as a pair I beleive), so if it's a forward facing one, then yes, they are pretty safe for bikes, although the usual caveat applies, if you speed through them every day, they'll make an effort to hunt you down.

[Biker Biggles]

how do they work?

if they take shots from the front, i take it that they wont get bikes?

You in trouble again? :(

[blueto]

if you notice a lot of average speed cameras have normal cctv cameras placed relatively near them facing the opposite direction to get bike number plates.

[RichT]

Speed = distance/time

Clocks the number plate going in and out of a set distance and calculates the average speed...

# plate + DVLA records = more points on your licence if you're not careful

They have forward and backward facing camera's but not on all so best to be careful.

[Dave20046]

how do they work?

if they take shots from the front, i take it that they wont get bikes?
I've always just rocked on through...

[Owenski]

wouldnt want to put my licence on the line to find out.
I've seen the yellow cameras facing on coming traffic but usually these are coupled with another camera. I assume using date and time stamps from the footage they can ID a bike as a naughty bike and send its owner some club card points.

[hovis]

i was just wondering

theres a bit of the M4 thats about 10 miles long, and its a 50 mph zone, its 3 lanes and should be a 70

[Captain Nemo]

if you notice a lot of average speed cameras have normal cctv cameras placed relatively near them facing the opposite direction to get bike number plates.

not neccesarily true,

average speed cameras work by tagging you as you enter a "zone" then tagging you again as you leave that zone, zones are rarely the distance between 2 cameras, usually they are between 2 or more cameras, so your average speed is measured over a longer distance, this is done for several reasons,
Some systems can only record the lane they are over and partial into the adjacent lane, thats why there are often multiple heads on each column, they can be fooled by drivers swapping lanes over measured zones, ie moving from lane 1 to lane 3, if the zones arent obvious ie between camara a and camera b it makes it impossible for a driver to work out the system and try and cheat and increases the likelihood that you will be caught,
The CCTV cameras are not to corobarate the specs cameras they are there to monitor traffic flow and provide quick identification in the event of an accident to get emergency services or breakdown vehicles.

dont however fall into the trap of believing that you cant be caught on a forward facing camera on a bike.

the CCTV operators can easily call the police and give them the identity of anyone blatently taking the pi55 and they just wait for you outside the roadworks, the tapes from the CCTV could then be used as evidence against you, everythings time coded.

A CCTV operator isnt qualified or even capable of issuing a ticket, but if they see you burst through every day they may just pass your info over to the police who will just follow you through.

anyway, im not saying anyone does, but dont speed through roadworks, its scares the 5hit out of lads who have to work in them.

including me.

[redlavachips]

i guess eveyone has been through average spped cameras where the normal speed is 50 when road works are going on but now im going through them with some cones at the side of the motorway and they are national speed limit is this just a ploy for the goverment to get some more money in these harsh times???

[Littlepeahead]

The theory works that on busy stretches if you slow the traffic the whole road runs more smoothly so everyone averages 50mph rather than speeding up, slowing down then causing jams.

Be very careful on the motorway where they do this speed regulating - normally a frame over the road with signs in red circles and a speed shown - this is not advisory but the legal speed and on the back are some cheeky speed cameras. A friend of mine in a car got done by 2 cameras over a short stretch of road. 2am, empty motorway but he then went through the whole stretch at over 50 but under 70 and got points twice. And being backward facing they'd get bikes like this too.

[G]

Some average camera I am wary of.

Like the ones on the A46 north of leicester. They have on pointing in either direction, very strange set up.

But motorway ones, and the ones on nottingham ring road are fair game if the conditions and traffic are appropriate.

[Richie]

there are now loads of those cameras around Leeming Bar....

[metalangel]

i was just wondering

theres a bit of the M4 thats about 10 miles long, and its a 50 mph zone, its 3 lanes and should be a 70

Tell me about it... that section is doing my frigging head in.

It's gonna be 'active traffic management' like on the M25 and M42 eventually... M42 is great, 60mph one gantry, next one 500 yards down is 50, one beyond that is 60 again.

[-Ralph-]

anyway, im not saying anyone does, but dont speed through roadworks, its scares the 5hit out of lads who have to work in them.

including me.

I don't, but can you please stop scaring the s**t out of us by running across he carriageway in front us when there isn't another car behind for another 1/4 mile.

The theory works that on busy stretches if you slow the traffic the whole road runs more smoothly so everyone averages 50mph rather than speeding up, slowing down then causing jams.

Be very careful on the motorway where they do this speed regulating - normally a frame over the road with signs in red circles and a speed shown - this is not advisory but the legal speed and on the back are some cheeky speed cameras. A friend of mine in a car got done by 2 cameras over a short stretch of road. 2am, empty motorway but he then went through the whole stretch at over 50 but under 70 and got points twice. And being backward facing they'd get bikes like this too.

This is not average speed cameras, it's variable speed limit zone. It works in a similar way to the old traffic master by detecting traffic flow, but the it applies some intelligence (queueing theory) to the data and the adjusts the speed limit on the gantry signs to stop the back of a queue running into the front and causing a jam, keeping the traffic spread out. The cameras are no more intelligent than a gatso so you can speed and only slow down for the gantries that have cameras on, just like slowing down for a static gatso. You can see the camera's in your mirrors and memorise which gantries have cameras, They look much like a Gatso, you'll know when you've seen one, if you can't see it it probably isn't there. I would recommend speeding in these zones though as even if you slow for the cameras, you'll just be in conflict with the rest of the traffic flow and you'll waste petrol and brake pads and get nowhere any faster.

There are now rear facing average cameras, they have them on the A6 between Derby and Matlock, specifically targeted at bikes. Normal average speed cameras no problem for bikes, but as said if the CCTV operator thinks you're setting a new land speed record, he'll phone the police to intercept you.

[G]

There are now rear facing average cameras, they have them on the A6 between Derby and Matlock, specifically targeted at bikes. Normal average speed cameras no problem for bikes, but as said if the CCTV operator thinks you're setting a new land speed record, he'll phone the police to intercept you.

People keep talking about these in derbyshire but I am still yet to see them. Which bit of the A6 specificaly are they on.

They are supposed to be installing them at every section mentioned in 'The Bikers Guide to Derbyshire' as well at some point.

http://www.derbyshire.gov.uk/transport_roads/road_safety/motorcycles/bikers_guide/default.asp