Average Speed Cameras

[ZX10R NIN]

Why are there so many cameras on the main carriageways when the road has average speed cameras on it surely they only need to be on the exit/entrances to the carriageway & at the very end of the average speed section.

It's a simple question that I'm sure has a simple answer, but the only answer we could come up with was a chance for extra revenue.

I hope PH can clear this one up for me.

[ZX10R NIN]

Conscript said:

If the cameras were spaced too far apart then it might be possible to drive quite a bit over the limit for part of the section, then compensate by slowing down for the rest of it to keep the average under the threshold. I'm guessing placing cameras closer together reduces the chance of that happening.

But surely that's the point of the cameras which is to keep the average speed by adding loops your limiting someone's chance to stay within the limit hence my gut feeling it's for extra revenue.

[ZX10R NIN]

Hungrymc said:

Tucking in to try and hide their reg from the camera if they've gone a little too quick?

I thought you could only hide behind HGV's

[ZX10R NIN]

So I take it no one knows why there are more cameras on the main carriageways rather just the ones at the beginning & the end of a carriageways.

[ZX10R NIN]

Exactly if you travel from A to D & your average speed is say 73mph but between B to C you averaged 80mph, in my mind you shouldn't be prosecuted because it should be your average speed until you either reach the end of the cameras or when you turn off anywhere in between then you average speed should be worked then.

So basically the extra cameras are there for extra revenue.

[ZX10R NIN]

TwigtheWonderkid said:

If you averaged 80 between points B & C, then unless you were doing a constant 80, there would have been points when you were doing over 80 to obtain an 80 average. Either way, why shouldn't you be prosecuted?

The answer is to not exceed the limit. That way, they get no revenue, regardless of the number of cameras.

Even you have exceeded the limit at sometime in your life unless you don't drive, but cheers for the helpful insight.

My point is your speed should be worked out from the first camera you pass & then the last camera as that is your true average speed through that section.

[ZX10R NIN]

At what point was I bleating?

I haven't been done for speeding, I was curious & thought I'd see what the PH consensus was.