Acknowledgement of speed camera 'safety'..!!
Discussion
This tender has come in via a general public sector leads service. So they promote speed/safety cameras and then have to evaluate whether or not they cause accidents elsewhere??
At least they are honest enough to call them speed cameras!
See below.
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MECHANISMS OF CHANGE IN ACCIDENT OCCURRENCE AND DRIVER BEHAVIOUR BROUGHT ABOUT BY SPEED CAMERAS
Type of document: Contract Notice
Country: United Kingdom
Quote Ref: GO 05051306/02.
Award procedure: Restricted.
Contract type: Service; Service Category 8.
Contracting authority: Department for Transport (DfT)
Safety consultancy services.
There is a need to establish the broader effects of speed cameras away from the specific camera sites, and in particular to investigate whether the use of speed cameras causes a migration of accidents to other locations. The research would investigate accidents and speeds at locations away from camera sites by direct observations and by assessing both exposure and changes in risk.
Research is also needed to demonstrate whether improvements in safety performance at speed camera sites arises from the presence of the cameras, or from their deployment at accident cluster locations where safety performance could be expected to improve without treatment: the "regression to mean effect".
At least they are honest enough to call them speed cameras!
See below.
------------------
MECHANISMS OF CHANGE IN ACCIDENT OCCURRENCE AND DRIVER BEHAVIOUR BROUGHT ABOUT BY SPEED CAMERAS
Type of document: Contract Notice
Country: United Kingdom
Quote Ref: GO 05051306/02.
Award procedure: Restricted.
Contract type: Service; Service Category 8.
Contracting authority: Department for Transport (DfT)
Safety consultancy services.
There is a need to establish the broader effects of speed cameras away from the specific camera sites, and in particular to investigate whether the use of speed cameras causes a migration of accidents to other locations. The research would investigate accidents and speeds at locations away from camera sites by direct observations and by assessing both exposure and changes in risk.
Research is also needed to demonstrate whether improvements in safety performance at speed camera sites arises from the presence of the cameras, or from their deployment at accident cluster locations where safety performance could be expected to improve without treatment: the "regression to mean effect".
Don't you think though that this is typical of Govt today. Saying one thing in private and then saying something else in public.
Speed cameras, regression to the mean.
Might be interesting to tender and see what the brief is. Often proven that the outcome of research is influenced by the desires of the party funding the research.
A classic example was the research into the speed with which mice could navigate a maze. A batch of genetically identical mice wwas split between various researchers.
One set of reserachers were told the mice had been specially bred to be intelligent and should be able to negotiate a maze rapidly. The second set were told the opposite that the mice had been specially bred to of low intelligence and should be slow etc.
Guess what the results were. Yes they got the results they expected, the "intelligent" mice were quicker than the "stupid" ones. The researchers .... err.. interfered with the results.
Speed cameras, regression to the mean.
Might be interesting to tender and see what the brief is. Often proven that the outcome of research is influenced by the desires of the party funding the research.
A classic example was the research into the speed with which mice could navigate a maze. A batch of genetically identical mice wwas split between various researchers.
One set of reserachers were told the mice had been specially bred to be intelligent and should be able to negotiate a maze rapidly. The second set were told the opposite that the mice had been specially bred to of low intelligence and should be slow etc.
Guess what the results were. Yes they got the results they expected, the "intelligent" mice were quicker than the "stupid" ones. The researchers .... err.. interfered with the results.
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