Here David Williams wrote:
London gets first urban ‘average speed’ cameras
David Williams, Motoring Editor David Williams, Motoring Editor London Evening Standard.
18.01.10
Speeding motorists who slow down for cameras face a new threat as Britain's first urban average speed traps are switched on in the capital.
Eighty-four new cameras are being placed on the A13 to the east of London in a bid to reduce the high accident rate on the commuter route.
They check speeds at 37 locations along a seven-and-a-half-mile stretch of the road.
Any motorists who let their speed creep above the limit between Canning Town and the Goresbrook Interchange could face a £60 fine and three points on their licence.
Unlike Gatso cameras, the network of devices monitors vehicles across the area, capturing individual motorists' average speed.
It is the first time that average speed cameras — traditionally used on sections of motorway — will enforce the limit on a road with multiple entrance and exit points, in an urban setting.
Ben Plowden, director of integrated programmes at Transport for London, which runs the project, said: “Traditional safety cameras are very effective at reducing the numbers of people killed or seriously injured on London's roads.
"However, roads such as this 12km stretch of the A13, which has a high level of speed-related collisions, have huge potential to benefit from the new average speed camera systems.”
TfL hopes the new cameras will also reduce collision-related congestion and smooth traffic flow.
The cameras, made by Worcestershire firm RedFusion, are undergoing a trial, but will go live — issuing fines — from early summer.
The speed limit on the section of the A13 to the east of the Canning Town flyover and the Goresbrook interchange will rise from 40mph to 50mph once the new system begins enforcing in the summer.
The limit across the Lodge Avenue and Canning Town flyovers will stay as it is for safety reasons.
A spokesman for the AA said that motorists would initially feel that the scheme was a “bit like Big Brother”, but added: “It is good to give this kind of technology a go to see what we can learn from it, especially if there are safety gains.”
On the affected part of the A13, nearly 500 collisions, including three fatal and 34 serious accidents, were recorded between 2006 and 2008.
Considering all the bad
side effects of cameras - even as the Highway's agency states and I would agree : bunching, tailgating, distraction, lane changing and sudden braking ...
and then there are the driver's that go into zombie modes, the one's that over and under compensate, some that realise late the cams have started so brake hard. Those that suddenly realise they have gone over the speed and then brake to drop speed immediately, causing caterpillar braking waves behind, the total distraction of the cams that will cause accidents as people pay less attention to the road and conditions.
HA also state that there have been "no proven safety (casualty reduction) benefits of ANY speed cameras and the only way to reduce/mitigate the hazards associated with ASCs was to educate drivers about how to drive in the presence of these HAZARD CAMERAS."
A worrying beginning to street av cams - the beginning of the 20mph zone av cams I guess ..

Still we can keep a close eye on the accident stats and the way they obtain figures and how that compares to previous methods and figures.
I dare say they will see and increase of SI incidents and accidents nr cam sites ..