M90 Variable speed limts & cameras.

[ianrb]

Does anyone know if the new speed cameras on the M90 (on the approach to the Forth Road Bridge) work when there is no limit displayed on the gantries?

Came down the M90 for the first time in many months, so hadn't seen the gantries, camera sign and road markings before. And I may have been a bit liberal with my interpretation of the speed limits.

[sherman]

If there was no limit on the signs I would assume that the cameras will be set to 70mph. If you don't get a letter within 14 days you are ok.

[ianrb]

sherman said:

If there was no limit on the signs I would assume that the cameras will be set to 70mph. If you don't get a letter within 14 days you are ok.

From your reply I assume you are an accountant.

[sherman]

ianrb said:

From your reply I assume you are an accountant.

Nope. About as far from an accountant as you can get.

[StescoG66]

Drive that road every week and never even seen the cameras. Where are they??

[sherman]

StescoG66 said:

Drive that road every week and never even seen the cameras. Where are they??

Hiding on the back of the gantries. The gantries they are on have a massive speed camera sign on them.

[BillyWhizz888]

There only activated when the speed limit applies eg down to 50

Normally only rush hour you'll see the limit

70mph as normal

[slickmouse]

They're average speed cameras so only work when the allocated limit is lit on the sign,

[Hollowpockets]

I didn't think they were average speed, the lines on the road suggest just a traditional speed camera. And they don't work unless there is a speed displayed even 70, I've gone through them at a speed which should have set them off when I first saw them, luckily no contact from the authorities.

[ianrb]

Hollowpockets said:

I didn't think they were average speed, the lines on the road suggest just a traditional speed camera. And they don't work unless there is a speed displayed even 70, I've gone through them at a speed which should have set them off when I first saw them, luckily no contact from the authorities.

That's good news. With a little luck I won't be getting a 'Lucky Prize Winner' letter either.

[slickmouse]

It's the same set up as London ring

[StescoG66]

slickmouse said:

It's the same set up as London ring

Sorry to be thick - but that would be???

[Papa Hotel]

slickmouse said:

They're average speed cameras so only work when the allocated limit is lit on the sign,

No they aren't.

[ianrb]

StescoG66 said:

Sorry to be thick - but that would be???

Cameras are only live when a speed limit is displayed. Although I have heard rumors that the cameras have never been activated.

Or did you mean which ring road? In which case the answer is the M25.

[StescoG66]

ianrb said:

StescoG66 said:

Sorry to be thick - but that would be???

Cameras are only live when a speed limit is displayed. Although I have heard rumors that the cameras have never been activated.

I'll look out for them on my way up to fife tomorrow

[slickmouse]

Papa Hotel said:

slickmouse said:

They're average speed cameras so only work when the allocated limit is lit on the sign,

No they aren't.

Papa Hotel, why don't you Foxtrot Oscar

[jambo103]

slickmouse said:

Papa Hotel, why don't you Foxtrot Oscar

+1

[Papa Hotel]

slickmouse said:

Papa Hotel said:

slickmouse said:

They're average speed cameras so only work when the allocated limit is lit on the sign,

No they aren't.

Papa Hotel, why don't you Foxtrot Oscar

How very grown up.

That still wouldn't make them into average speed cameras.

[gwm]

Any consensus on these?

[Technomad]

Gantry cameras on the M25 only used to be active when a limit was displayed, and not always then - they were single shot cameras, not average. That may have changed in the last few years. M90 gantry cameras are, I believe single shot and certainly, to date, they are not active when a speed limit is not displayed. At least, if they are, they're set to an extremely liberal threshold. I pass through there several times a week.