Speed cameras which simultaneously monitor two lanes of traffic could be rolled out across Sussex.

Three hi-tech cameras, which are significantly cheaper than traditional machines, are currently installed along the A24 at Southwater, near Horsham.

They are so small they can be mounted on street lights and road signs. They are also digital so never run out of film.

The cameras on the A24 are due to be turned on for a trial period.

The Home Office asked Siemens, the company which designed the cameras as part of its SafeZone system, to install them temporarily in Sussex and Harrow-on-the-Hill in North London.

Information from them will then be fed back to the Home Office and their effectiveness will be considered.

People who are caught speeding by the cameras in Sussex will not have any details stored and will not face fines or prosecution during the trial.

The SafeZone system, unlike traditional speed camera systems, uses a cluster of cameras to communicate with one another wirelessly.

These can monitor average speeds across a number of streets.

Drivers entering an area where the cameras operate will be warned with a sign reading: “You are now entering a SafeZone.”

Are there already too many speed cameras on roads in Sussex? Tell us what you think by writing to our letters page, emailing letters@theargus.co.uk or commenting below.