A9 average speed cameras

A9 average speed cameras

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Discussion

Dryce

310 posts

133 months

Monday 9th February 2015
quotequote all
Bohally said:
Has anybody actually been or lnow anybody that has received a ticket yet?

Just come up from Perth to Inverness this afternoon - made sure the sat nav averaged 60 on the S/C sections but was making progress on the D/C's (On the basis they aren't covered!).
http://www.scotsman.com/news/transport/more-drivers-speeding-on-dual-carriageways-of-a9-1-3670358

Covered by other means.

matchmaker

8,495 posts

201 months

Monday 9th February 2015
quotequote all
Dryce said:
Bohally said:
Has anybody actually been or lnow anybody that has received a ticket yet?

Just come up from Perth to Inverness this afternoon - made sure the sat nav averaged 60 on the S/C sections but was making progress on the D/C's (On the basis they aren't covered!).
http://www.scotsman.com/news/transport/more-driver...

Covered by other means.
And an interesting quote from that article:

Scotsman said:
The average speed cameras, which measure speed over set distances, only cover single carriageway stretches between Perth and Inverness because these account for most deaths on that part of the road.

However, they also cover the dual carriageway section from Perth to the Keir roundabout, south of Dunblane, because of “high severity” crashes involving vehicles turning at cross-over junctions.
These junctions, of course, used to be equipped with Gatso cameras. Maybe some of the money (£3m) wasted on the average speed cameras would have been better put to use improving the junctions?

MDT

467 posts

173 months

Tuesday 10th February 2015
quotequote all
Are the Duel sections really not covered be the average speed camera's ?? The last few times I have been up that way some guys were "making progress" on the Duel sections but I was worried they would be local's and turning off down some wee side road before the next camera!!!!

jamesbeaumont

260 posts

123 months

Tuesday 10th February 2015
quotequote all
MDT said:
Are the Duel sections really not covered be the average speed camera's ?? The last few times I have been up that way some guys were "making progress" on the Duel sections but I was worried they would be local's and turning off down some wee side road before the next camera!!!!
They're definitely not (north of Perth). The cameras operate in pairs. The road angel confirms this as it stops flashing on the dual sections. (Plus I have made some 'good' progress here and have had nothing in the post....)

s2kjock

1,687 posts

148 months

Tuesday 10th February 2015
quotequote all
jamesbeaumont said:
MDT said:
Are the Duel sections really not covered be the average speed camera's ?? The last few times I have been up that way some guys were "making progress" on the Duel sections but I was worried they would be local's and turning off down some wee side road before the next camera!!!!
They're definitely not (north of Perth). The cameras operate in pairs. The road angel confirms this as it stops flashing on the dual sections. (Plus I have made some 'good' progress here and have had nothing in the post....)
Is there anything to stop them working over the DC stretches though?

Assuming they can time you from the last one before you go DC, and the first one after you come back off it, working out the appropriate speed over the (mostly DC) part and comparing it is pretty simple?

jamesbeaumont

260 posts

123 months

Tuesday 10th February 2015
quotequote all
s2kjock said:
jamesbeaumont said:
MDT said:
Are the Duel sections really not covered be the average speed camera's ?? The last few times I have been up that way some guys were "making progress" on the Duel sections but I was worried they would be local's and turning off down some wee side road before the next camera!!!!
They're definitely not (north of Perth). The cameras operate in pairs. The road angel confirms this as it stops flashing on the dual sections. (Plus I have made some 'good' progress here and have had nothing in the post....)
Is there anything to stop them working over the DC stretches though?

Assuming they can time you from the last one before you go DC, and the first one after you come back off it, working out the appropriate speed over the (mostly DC) part and comparing it is pretty simple?
There's no way they could provide an accurate calculation of % over the speed limit as the cameras end/start quite a distance either side of the DC sections so cover some 60 section as well. They couldn't prosecute with such vagueness.

ModernAndy

2,094 posts

136 months

Tuesday 10th February 2015
quotequote all
jamesbeaumont said:
There's no way they could provide an accurate calculation of % over the speed limit as the cameras end/start quite a distance either side of the DC sections so cover some 60 section as well. They couldn't prosecute with such vagueness.
Well...

It wouldn't be that vague if your average was 150mph I suppose. I doubt they'd bother checking between those cameras anyway if there's no automatic booking of speeding between the 2 points.

I don't see why you couldn't measure people going above the average speed limit despite the speed limit changes but I'd imagine it's just easier and more convenient to let the fast traffic through on the DC

MDT

467 posts

173 months

Tuesday 10th February 2015
quotequote all
jamesbeaumont said:
MDT said:
Are the Duel sections really not covered be the average speed camera's ?? The last few times I have been up that way some guys were "making progress" on the Duel sections but I was worried they would be local's and turning off down some wee side road before the next camera!!!!
They're definitely not (north of Perth). The cameras operate in pairs. The road angel confirms this as it stops flashing on the dual sections. (Plus I have made some 'good' progress here and have had nothing in the post....)
Jamesbeaumount, good news and please to hear this. I was wondering how this would work as some of the camera's are a good bit before and after the DC sections and to get an average speed through a section which went say 60mph - 70mph - 60mph could be quite tricky.

Which Road Angle do you have that shows the average speed sections??????

jamesbeaumont

260 posts

123 months

Tuesday 10th February 2015
quotequote all
ModernAndy said:
Well...

It wouldn't be that vague if your average was 150mph I suppose. I doubt they'd bother checking between those cameras anyway if there's no automatic booking of speeding between the 2 points.

I don't see why you couldn't measure people going above the average speed limit despite the speed limit changes but I'd imagine it's just easier and more convenient to let the fast traffic through on the DC
They'd have to be specific about how far over you were. 1mph could make the difference between 3 and 6 points etc.

jamesbeaumont

260 posts

123 months

Tuesday 10th February 2015
quotequote all
MDT said:
Jamesbeaumount, good news and please to hear this. I was wondering how this would work as some of the camera's are a good bit before and after the DC sections and to get an average speed through a section which went say 60mph - 70mph - 60mph could be quite tricky.

Which Road Angle do you have that shows the average speed sections??????
I have the Gem. It tells you which parts are in zones and also what your average throughout each section is. Handy...

Dr Jekyll

23,820 posts

262 months

Tuesday 10th February 2015
quotequote all
jamesbeaumont said:
They'd have to be specific about how far over you were. 1mph could make the difference between 3 and 6 points etc.
I don't think so, they'd just have to show you were over the limit.

ModernAndy

2,094 posts

136 months

Tuesday 10th February 2015
quotequote all
Dr Jekyll said:
jamesbeaumont said:
They'd have to be specific about how far over you were. 1mph could make the difference between 3 and 6 points etc.
I don't think so, they'd just have to show you were over the limit.
it's a good point in certain scenarios I think. Let's say, just for example, that 80 in a 60 is 6 points rather than 3 and 90 in a 70 is the same. They'd have to prove you were doing the 6-pointer speed to give you more than 3 points but then there is not enough evidence from just an average speed reading that you did in fact hit a 6-pointer speed, up to a certain average speed reading over a certain distance where there is X amount of 60 road and Y the amount of DC. If you did hit a certain average speed then there would be no doubt that you did do a 6-pointer along some of the road though.

HendryG

308 posts

162 months

Tuesday 10th February 2015
quotequote all
Can someone confirm for me the stretch after the roundabout for Dunblane where the first camera South is up to Broxden services is a 70 limit, I sat at a sat nav verified 66/67 the whole way and I was passing everyone, they were all doing whati presume was 55, which panicked me thinking maybe its now a 60 stretch.

Bohally

943 posts

148 months

Tuesday 10th February 2015
quotequote all
HendryG said:
Can someone confirm for me the stretch after the roundabout for Dunblane where the first camera South is up to Broxden services is a 70 limit, I sat at a sat nav verified 66/67 the whole way and I was passing everyone, they were all doing whati presume was 55, which panicked me thinking maybe its now a 60 stretch.
Confident you'll be fine - 70mph zone.

Spitfire2

1,919 posts

187 months

Tuesday 10th February 2015
quotequote all
HendryG said:
Can someone confirm for me the stretch after the roundabout for Dunblane where the first camera South is up to Broxden services is a 70 limit, I sat at a sat nav verified 66/67 the whole way and I was passing everyone, they were all doing whati presume was 55, which panicked me thinking maybe its now a 60 stretch.
Of course its a 70mph limit. Lots of idiots thing a DC is 60. I set my cruise to 75 (which is pretty much an accurate 70). Imagine how fast I pass the sheep.

Vipers

32,894 posts

229 months

Wednesday 11th February 2015
quotequote all
Spitfire2 said:
HendryG said:
Can someone confirm for me the stretch after the roundabout for Dunblane where the first camera South is up to Broxden services is a 70 limit, I sat at a sat nav verified 66/67 the whole way and I was passing everyone, they were all doing whati presume was 55, which panicked me thinking maybe its now a 60 stretch.
Of course its a 70mph limit. Lots of idiots think a DC is 60. I set my cruise to 75 (which is pretty much an accurate 70). Imagine how fast I pass the sheep.
I know what you mean, and most of us know what you mean, but just for the "Lots of idiots" you have clearly identified, it's only 70 for cars when the NSL applies,, obvIous I know. Not being picky or anything.




smile

simoid

19,772 posts

159 months

Wednesday 11th February 2015
quotequote all
Spitfire2 said:
Of course its a 70mph limit. Lots of idiots thing a DC is 60. I set my cruise to 75 (which is pretty much an accurate 70). Imagine how fast I pass the sheep.
Perhaps they're all in fuel save mode driving

Also, you might notice a lot of sheep as obviously you'll never catch up the people who are doing 75 too!

ViperPict

10,087 posts

238 months

Wednesday 11th February 2015
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My Sat Nav seems to know when the speed averaging is relevant. It never calculates average speed in the DC sections.


Vipers

32,894 posts

229 months

Wednesday 11th February 2015
quotequote all
I just love my CC biggrin




smile

moochofun

104 posts

210 months

Wednesday 11th February 2015
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If I believe everything in this thread then someone I know should be expecting a massive haul of points to be added to their license going forward - VW Transporter van (gross max weight 3000kg) doing 70-75mph (68-73mph on satnav) from Perth to Glasgow on the A9... How long does the points notification letters take to arrive then?