Speed cameras in London are to be upgraded, with motorists being warned to watch their average speed and not just their speed while passing through a camera.
Hundreds of traditional wet film speed cameras will be replaced with digital cameras.
Transport for London have also announced average speed cameras will be installed at four trial locations after a successful trial on a stretch of the A13.
Work on upgrading the existing speed camera network is expected to be completed by October 2016.
Transport for London’s strategy and planning director Ben Plowden said: “Ensuring that all road users are acting responsibly is vitally important to ensure that the capital’s roads are kept safe for all. We are committed to delivering a 40% reduction in the number of people killed or seriously injured on the capital’s roads.’