Year by year KSI figures for Gatso's
Year by year KSI figures for Gatso's
Author
Discussion

cuneus

Original Poster:

5,963 posts

271 months

Tuesday 4th January 2005
quotequote all
Avon and Somerset have put them against each camera

e.g. www.safecam.org.uk/camera_sites/camera_sites_details.asp?id=192

mybrainhurts

90,809 posts

284 months

Wednesday 5th January 2005
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Notice how we still don't get the DEATHS figure.

g_attrill

9,039 posts

275 months

Wednesday 5th January 2005
quotequote all
That is getting to what I would like to see nationally, although it perhaps should go back a bit further and as mentioned be split fatal, serious and slight.

Gareth

russ35

2,705 posts

268 months

Wednesday 5th January 2005
quotequote all
This is Lancashire councils interactive map

http://mario.lancashire.gov.uk/

Once you have the map on screen you can then select Transportation from maps, and then select Speed cameras and collisions. You then see where all accidents from 1999 - Aug 2004 have been. You can also view the injuries for each accident by clicking on the little info button and then clicking on an accident spot.

Bad news is that you cannot see the accident information for Blackpool and Blackburn as they are not part of Lancashire County Council anymore.

BliarOut

72,863 posts

268 months

Wednesday 5th January 2005
quotequote all
A370. The only KSI was two years AFTER the scamera was installed

cuneus

Original Poster:

5,963 posts

271 months

Wednesday 5th January 2005
quotequote all
QED cameras Kill and seriously injure


Street/Road/WhateverCop any comments ?

MilnerR

8,273 posts

287 months

Wednesday 5th January 2005
quotequote all
nice to see a statistically rigourous use of the available data What are the bets that if there are a spate of accidents next year they'll remove the figures?!

Roadcop

655 posts

261 months

Wednesday 5th January 2005
quotequote all
cuneus said:
QED cameras Kill and seriously injure


Street/Road/WhateverCop any comments ?


Hiya cuneau...

Roadcop only and will be sticking to it..

Comments;
As always, cameras have their place and do a good job when situated properly.
However, only real traffic officers can detect drink drivers, no insurance, no licence, disqualified drivers, poor driver behaviour/standards etc etc...and that's where the answer lies..

Peter Ward

2,097 posts

285 months

Wednesday 5th January 2005
quotequote all
I just picked a camera at random from the list on the safecam site: A370 uphill road north (ID 95).

This site was "inherited", as the camera was installed in 1994.

The accident figures for the last 6 years:

98: 1
99: 3
00: 6
01: 1
02: 4
03: 5

What does this prove then?

You could invent a trend for 98-01 ("massive 83% reduction in accidents in 01") and another one for 01-03 ("massive 400% increase in accidents in 03").

However, I would suggest that there is no pattern whatsoever, but purely random events taking place. There is no trend. And this from a camera that's been there for over 10 years and therefore has had plenty of time to influence driver behaviour rather than just penalise the unwary.

Cameras saving lives? The site states "casualties reduced by 16% at camera sites" and yet admits defeat by then stating "fewer new camera sites to be introduced in 2005". So they work really well, save lives, but we're not going to save as many more in 2005 as we did in 2004.

alfaman

6,416 posts

263 months

Wednesday 5th January 2005
quotequote all
Peter Ward said:
I just picked a camera at random from the list on the safecam site: A370 uphill road north (ID 95).

This site was "inherited", as the camera was installed in 1994.

The accident figures for the last 6 years:

98: 1
99: 3
00: 6
01: 1
02: 4
03: 5

What does this prove then?

You could invent a trend for 98-01 ("massive 83% reduction in accidents in 01") and another one for 01-03 ("massive 400% increase in accidents in 03").

However, I would suggest that there is no pattern whatsoever, but purely random events taking place. There is no trend. And this from a camera that's been there for over 10 years and therefore has had plenty of time to influence driver behaviour rather than just penalise the unwary.

Cameras saving lives? The site states "casualties reduced by 16% at camera sites" and yet admits defeat by then stating "fewer new camera sites to be introduced in 2005". So they work really well, save lives, but we're not going to save as many more in 2005 as we did in 2004.


you've hit the nail on the head regarding Speed CAm stats - annual accident figures per site are so low as to be statistically meaningless - speak : "sample size" is way too low to mean anything - its just random year-on-year variation.

Only meaningful (mathematically speaking) set of number would be a national add-up - and we all know that TOTAL accidents and deaths are NOT declining.

rodney59

424 posts

277 months

Thursday 6th January 2005
quotequote all
And this show just a blip for just one year...

www.safecam.org.uk/camera_sites/camera_sites_details.asp?id=11

cuneus

Original Poster:

5,963 posts

271 months

Thursday 6th January 2005
quotequote all
7 have had ZERO for five years (so far)

The A303 Ilminster has the wrong speed limit - 60 it should be 70 so if you have been done here aplly for your refund

>> Edited by cuneus on Thursday 6th January 09:14

cuneus

Original Poster:

5,963 posts

271 months

Thursday 6th January 2005
quotequote all
22 Gatso's have no KSI in last 5 years

WRT to totals I did this chart of 83 Gatso's, don't know whether it's valid ?

nightmare

5,279 posts

313 months

Thursday 6th January 2005
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was about to do a graph - glad you did it first!

Totally agree with Peter - these figures seem to show that 'in these instances the placings of speed camers have bugger all quantifiable effect on accidents and accident rates'

though....we dont seem to have figures from BEFORE any camer was in place? Or did i just not se it?

Roadcop

655 posts

261 months

Thursday 6th January 2005
quotequote all
A graph!...is that what it is...

I have a some coloured sand in a bottle in my bathroom that just looks the same...

nightmare

5,279 posts

313 months

Thursday 6th January 2005
quotequote all
bless! Do you still have "Ant and Bee's ABC of booking a motorist" too?

saw someone making one of those sand things in Egypt - very cool!

g_attrill

9,039 posts

275 months

Thursday 6th January 2005
quotequote all
cuneus said:
22 Gatso's have no KSI in last 5 years

WRT to totals I did this chart of 83 Gatso's, don't know whether it's valid ?

Looks interesting, are you able to explain what it means for the stupid?

I obtained the full accident data for the UK for 1991-2002 and analysed camera stats in a certain city. Comparing the the claims made against the cameras got me some interesting conclusions. I am making an FOI request to fill in the gaps (eg. the loci of the camera boundaries) an double check before I say too much.

Gareth

cuneus

Original Poster:

5,963 posts

271 months

Thursday 6th January 2005
quotequote all
Each section (sand colour for Gary) shows the number of KSI vertically versus the years horizontally for a Gatso site. These are stacked to show a total at the top which shows the total variation over the years

Not sure it's the best graph if ne1 wants the raw data in Excel let me know

HTH

>> Edited by cuneus on Thursday 6th January 21:02

Roadcop

655 posts

261 months

Thursday 6th January 2005
quotequote all
cuneus said:
Each section (sand colour for Gary) shows the number of KSI vertically versus the years horizontally.

Peter Ward

2,097 posts

285 months

Friday 7th January 2005
quotequote all
So in 2003 we returned to the same level of KSIs that we had in 1999? Well that's reassuring....

What happened in 2002? A change of that magnitude must have had a cause -- or at least it would have done if it was the same size downwards because the Partnership would have trumpeted their amazing success.

>> Edited by Peter Ward on Friday 7th January 10:30