Bid to cut road deaths with average-speed cameras

The special cameras are to be installed on a 7.5 mile-stretch of the A13 in east London and will be in force by this summer.

However, the speed limit will be raised from 40mph to 50mph on a section of the route once the 84 cameras are in place.

Transport for London (TfL), which is installing the cameras, hopes that they will halve the number of people killed or seriously injured along the road.

The cameras will monitor average driving speeds on a stretch where the collision rate has been almost a fifth higher than is typical of major roads in London.

TfL said nearly 500 collisions, including three fatal and 34 serious accidents, were recorded on this stretch of road between 2006 and 2008.