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Figures suggest speed cameras on Canvey Way reduce accidents
Article by: rob brady
Date: 25 Mar 2013
The number of serious accidents has dropped by 86% after a new scheme to improve road safety was implemented on Canvey Way, South Essex.
Following two fatal incidents in 2008, a £700,000 scheme was put in place to bring the accident rate down.
A new 50mph speed limit was introduced along with average speed cameras, lay-bys were closed and the road was resurfaced with anti-skid material.
Figures obtained by The Echo from the Essex Safety Camera Partnership show that the number of serious accidents has fallen by 86% while the number of minor collisions fell by 83%. The actual number of accidents were not reported.
Taxi driver Martin Jones, from Canvey, said: "When there is an accident down Canvey Way the whole area just grinds to a halt. So it's good if these changes have helped reduce the number of crashes along there."
They also show that 483 drivers have been caught flouting the new speed limit, leading the scheme to be dubbed a "success".
What can be gauged from the figures? Statistics quoted in isolation are a questionable indicator of success. It is easy to say that because the frequency of accidents fell following the installation of a speed camera, the camera improved road safety - but figures can prove worthless unless the overall trend is observed. See: regression fallacy.
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 Posted by lenfish on Mon Mar 25, 2013 9:53 pm |
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I think the article headline is totally misleading. A combination of road safety measures were taken, not just the installation of speed cameras.
Any analysis of the success or otherwise of the scheme would need to look at the totality of the measures.
Regards,
Len
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| Posted by IanS100 on Tue Mar 26, 2013 10:38 am |
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Is it significant that Essex Safety Camera Partnership are able to quote exact percentages but not the underlying number of accidents from which the figures were calculated?
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