Average Speed Camera Clarification?

I like to imagine that you could drive at 100mph past one 'average speed' camera, pull over before passing the next one, wait for a certain time, then carry on, and your average speed between the two would be a legal speed.
There must be a formula to work this out!
 
markweatherill said:
I like to imagine that you could drive at 100mph past one 'average speed' camera, pull over before passing the next one, wait for a certain time, then carry on, and your average speed between the two would be a legal speed.
There must be a formula to work this out!
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This was possible on the M4 near Newbury a some years back, the roadworks were around the services so you went past the first camera, stopped at the services for a coffee then out the other end pas the camera again.

There will be a formula to work out what you need but it would require the distance between the cameras to work it out.
 
Average Speed = distance / time taken?

Anyway, you'd have to to stop in between 2 cameras - so hardly any point (and illegal). By the time you had allowed enough time to elapse all the cars you over took would be out of the road works and well on their way :p
 
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Freefaller said:
Average Speed = distance / time taken?

Anyway, you'd have to to stop in between 2 cameras - so hardly any point (and illegal). By the time you had allowed enough time to elapse all the cars you over took would be out of the road works and well on their way :p
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Exactly, is that rebel without a cause, or rebel without a clue? :D
 
Nah, you don't need a formula. Simply pick an easy to recognise car that's doing 50mph as you pass it at 100mph when you go through the first camera, then pull up and wait before the second camera for him to draw level then drive through the camera with him, rinse & repeat :D
 
Freefaller said:
:D :D

So actually not getting through the road works any quicker then? :p
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If you're averaging 50mph, how can you possibly be any quicker than anyone else who's also averaging 50mph? :)

Still, you'd probably go through the road works having more fun, even if you're no quicker :D
 
markweatherill said:
I like to imagine that you could drive at 100mph past one 'average speed' camera, pull over before passing the next one, wait for a certain time, then carry on, and your average speed between the two would be a legal speed.
There must be a formula to work this out!
Click to expand...

Once i bombed into the blackwall tunnel coming back to Enfield at 3AM, not a single car in sight, completely forgot about the specs, must've been going 40ish real speed, luckily i remembered the 30 Gatso before it :rolleyes:
Dropped and cruised at 20mph for about 5/8ths of the way and all was good :)
 
I went on a AA Drive Tech day yesterday and to answer the question surrounding the people who pelt through ave. speed camera zones: only around 10% of all speed camera types are operational in the UK at any given time.

Surrey, for example, has 350+ speed camera sites of which only around 35 are operational.

Interestingly, the guy running the course (an ex traffic cop) stated that a major reason for this is that if every camera nationwide worked 24/7 and caught/issued fines plus points for speeding even just slightly over the limit, the country would come to a standstill, (for want of a better term)!

Even minor speeding is so prevalent in the UK that the whole infrastructure of the country would be affected by people being banned and fined for breaking the rules on the road.
 
Well over 2 weeks and I didn't get anything through the post. I imagine I would have probably been really doing few mph's below what the speedo reads.
 
lemonade said:
Well over 2 weeks and I didn't get anything through the post. I imagine I would have probably been really doing few mph's below what the speedo reads.
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I also didn't get anything thankfully. The M62 is now much clearer, gone are the temporary signs and the overhead signs are lit all the time to remind you of the current speed limit. :)
 
Freefaller said:
What I don't understand is in SPECS areas, why some people blast past me at 70 instead of the 50mph limit stated by the SPECS zone.
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Probably the people who save on insurance / tax / mot by buying a car for cash & never registering it :mad:
 
OzyOly said:
I also didn't get anything thankfully. The M62 is now much clearer, gone are the temporary signs and the overhead signs are lit all the time to remind you of the current speed limit. :)
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Living right next to the M1 / M62 I can sympathise how confusing its been. It was originally a 50mph limit, enforced by average speed cameras for the entire stretch from J31 to about J26.

Recently of course they have started completing sections and putting the managed motorway stuff with dynamic speed limits on the gatsos on the gantries... At the same time. The transition phase was very confusing with specs average speed cameras about, and the gatsos on the gantries.

Thankfully you didn't get a ticket and as you say now its fully open its a lot clearer
 
Theophany said:
Mind you, the one down in Surrey is so slow in the mornings and evenings that you could probably blast through the last stretch at 90mph and still have an average speed below 50. :p
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^ You don't know the range that the SPECS is operating over. You could have 20 cameras policing Birmingham ring road, but the cameras may only require the average speed between 2 of the cameras - not the entire 20 camera series.

The potential for 'average speed' is huge - regardless of the distance of your drive, if you breached the speed limit at any point, it could quite easily be realised between any fixed points as a 'max. time taken between point A and B' (i.e. taking the fastest routes, and setting that as the limit).

Popping 1 mile around the corner to the shops? in a 30MPH zone, but drove at 40MPH for a clear downhill slope? You'd get caught.
Same can be applied for any distance - going from Scotland to Cornwall but at some points in your journey hit 84MPH? You're clocked. Hell, depending on the operating range of the cameras (to trigger a violation), you could lose your license in one go.
 
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