Police checking Leeds M621 average speed cameras to switch them on next week

Average speed cameras are set to be switched back on on the M621 in Leeds - as soon a police give it the go-ahead.
Average speed cameras on the M621Average speed cameras on the M621
Average speed cameras on the M621

The bright yellow average speed camera gantries have been installed overhead along the M621 going into and out of Leeds.

But currently, there are signs propped up in front of each camera set which state 'Cameras not in use'.

Well, that won't be the case for much longer.

Average speed cameras on the M621Average speed cameras on the M621
Average speed cameras on the M621
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-> Shocking dashcam clip shows moment Audi cuts up driver and slams into them on M62 in LeedsHighways England said today that West Yorkshire Police are scheduled to inspect the cameras next Tuesday (April 9).

Once that inspection is complete, the cameras can be given the green light, and will go live shortly after that.

The cameras will enforce new speed limits, with a 40mph limit or 50mph limit at certain times of day in different parts of the motorway while Highways England carries out motorway upgrades..

The work will take about six months to complete.

Speed restrictions and reduced lane widths will be put in place.

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The clockwise carriageway between junctions 5 and 7 will be reduced to 40mph on the M621.

The anti-clockwise carriageway will be reduced to 50mph from M1 junction 43.

Most of the work will be carried out overnight between 8pm and 6am. All lanes will be kept open during the day. M621 junction 3 to M1 junction 43 will be closed overnight in both directions for the duration of the work and there will be diversion routes in place.

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Average speed cameras work by tracking the speed of your car between two points. So slowing down to go through the camera and then speeding up will not work.

Instead, the cameras, installed on bright yellow gantries overhead, take your number plate when you pass through the first camera, then your number plate again at the second, and perform a quick calculation based on the current time to work out how long it took you to travel between the two points. If the time it took you to travel is quicker than could be done at the speed limit, you'll get a fine in the post.

So if the speed limit is 30mph and you drove at 35mph for 30 seconds, you'd need to drive at 25mph for 30 seconds to balance it out.

Do the cameras work at night?

Yes. They are fitted with infrared night vision to ensure they work night and day, and in any weather. Sorry.

Can the cameras run out of film?

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No. Unlike some other speed cameras, average speed cameras are all digital. So they can issue an unlimited number of fines.

If a vehicle changes lanes will they avoid any fines?

No. The cameras take pictures of every lane and cross-compare them. So changing lanes won't save you, contrary to popular belief.

If I speed through multiple sets in the same of road stretch, will I be fined multiple times?

It's not likely. Not every camera is paired to every other. So if there are four in a row, your speed between cameras 1 and 3 and 2 and 4 may be compared, or just 1 and 4, etc. But you won't know which is connected to which. But on a separate section of the same road, you could get fined again.

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If you are less than 10 per cent above the limit, will you get a ticket?

National Police Chiefs Council advice has suggested 10% as a buffer, but this is only advisory and in reality many forces are far stricter, especially as cameras become more accurate. In fact, according to the law you can legally be fined for being just 1mph over.

The best method to avoid a speeding ticket? Don't speed, of course...

Highways England project manager Sujad Hussain said: “These are vital safety improvements on a busy commuter route. We thank drivers for their patience and encourage them to allow extra time for their journeys, especially during rush hours.

“We will not only renew the safety barriers in the central reservation and verges, but also fully resurface the carriageway in both directions, further increasing safety.”