New speed system on London road is 'UK first'
What is claimed to be the first average speed camera system of its kind in the UK will begin operating in London on Monday.
The cameras have been installed on the A13 between Canning Town and Goresbrook Interchange, in east London.
Transport for London (TfL) said there were more than 400 collisions there between 2007 and 2009, and two deaths.
It is the first site in the UK where average speed cameras are installed on a major urban road, according to TfL.
It is hoped the 84 new cameras will reduce collisions by around 30%, a TFL spokesman added.
David Brown, TFL's managing director of surface transport, said this new average speed camera system along the A13 was "not only a first for London, but a first for the UK".
"Once active, the upgraded safety camera system will help significantly reduce the number of collisions that occur along the stretch of road, resulting in fewer serious casualties."
The speed limit will be raised from 40mph to 50mph on the section of the A13.
Pc Simon Wickenden of Chadwell Heath Traffic Management Unit, said: "We believe the speed limit is more appropriate for a dual carriageway like this."
TfL said the new cameras monitored the average speed of a driver travelling along the stretch of road.
The new camera system will replace the existing fixed and mobile safety cameras along the stretch of road.