m25 cameras?

[laz11]

I use the M25 between jct 7 and 19 a couple of times a month and am never sure if the run of fixed overhead cameras that I pass (somewhere around jct 10-15 I think) are working?

[topjay]

I think there is only 1 both ways, well the gps detector tells me this although there are markings all over the place.

[Beemer-5]

I am glad i never have to use the M25 anymore.
They reckon overall average speed over the whole 24 hours is 31 mph.
What is it between 7am and 7pm i wonder?

Edited by Beemer-5 on Thursday 20th December 13:26

[Puggit]

They are between the A3 and the M40 - they are certainly working, but if no limit is shown then they have a very high threshold.

If a limit is showing on the gantries, treat as any normal speed camera. Not all gantries have cameras - use a GPS to distinguish!

[MiniMac]

I went through there for the first time last night, utterly unbelievable.

From 60 to 30 to 50 to 40 to 60. All in clear traffic, with no fog.

ING EXPLAIN WHY! Before you send me the £60 request which as I already have 3, will mean a trip to the mag's!

[Methane Bloke]

Beemer-5 said:

I am glad i never have to use the M25 anymore.
They reckon overall average speed over the whole 24 hours is 31 mph.
What is it between 7am and 7pm i wonder?

Edited by Beemer-5 on Thursday 20th December 13:26

31MPH is better than the 10MPH, 24 hour average for inner London.

The M25 is the best invention since sliced bread.

Regards

Chris

[jondude]

I thought there were no cameras at all on the M25, an admission that they can be dangerous as the worry was the daily hundreds of thousands using it, while looking everyhwere for the cameras and not at the traffic in front, would create carnage.

[Batfink]

i've been flashed and i havent received anything through the post so maybe I was lucky.
My average speed on the m25 in rush hour is about 26mph for the journey

[supermono]

Beemer-5 said:

I am glad i never have to use the M25 anymore.
They reckon overall average speed over the whole 24 hours is 31 mph.
What is it between 7am and 7pm i wonder?

Edited by Beemer-5 on Thursday 20th December 13:26

When I have to use it I usually travel between 0500-0600 and I can report that my average speed is >31mph.



SM

[Gren]

Puggit said:

They are between the A3 and the M40 - they are certainly working, but if no limit is shown then they have a very high threshold.

If a limit is showing on the gantries, treat as any normal speed camera. Not all gantries have cameras - use a GPS to distinguish!

There are none between the M3 and the M4 on the new stretch. Camera boxes have not (yet) been installed. There is, from memory, 1 each way between A3 and M3 and 1 each way between the M4 and M40.

Not sure about threshold when there is no limit showing but it must be into 3 figures if they are working at all.

[SMB]

Gren said:

Puggit said:

They are between the A3 and the M40 - they are certainly working, but if no limit is shown then they have a very high threshold.

If a limit is showing on the gantries, treat as any normal speed camera. Not all gantries have cameras - use a GPS to distinguish!

There are none between the M3 and the M4 on the new stretch. Camera boxes have not (yet) been installed. There is, from memory, 1 each way between A3 and M3 and 1 each way between the M4 and M40.

Not sure about threshold when there is no limit showing but it must be into 3 figures if they are working at all.

There are 2 each way between the A3 and m3, one between 11 and j12 ( almost exactly in the middle) lane 4 clockwise, l2 ac, and one each way 3rd gantry clockwise from l10, both l4.

Now that proves I've spent way too many hours sat in a queue watching traffic.

[Scraggles]

think they work above 90 mph and are apparently very accurate when the variable speed is up and working, but recall a 10 sec delay when the speed drops and the cameras adjust to the new speed, guess some people need to learn to use the brakes more

Tend to find it quicker in the mornings to go down the A1 and across town on the A404 to hayes area and the a40 / A4 than to sit in the traffic jam that seems to be present all morning

[JonRB]

Scraggles said:

think they work above 90 mph and are apparently very accurate when the variable speed is up and working, but recall a 10 sec delay when the speed drops and the cameras adjust to the new speed, guess some people need to learn to use the brakes more

It isn't 10 secs. The adjustment period is an operator-defined parameter of 0-99 minutes in one minute intervals, so in reality 1-99 minutes (since I can't see them setting it to 0).