Skip to main content

New traffic safety system at Dartford Crossing

From 13 June a new traffic safety system will be in use on the A282 (M25) northbound approach to the Dartford crossing tunnels. The system will identify and stop oversized vehicles or those carrying dangerous goods from entering the tunnels. It will also enable dangerous goods vehicles to be escorted through the tunnels safely and stop traffic in the event of an incident in the tunnels. Electronic message signs on the approach to the traffic safety system will provide drivers with information relating
May 22, 2015 Read time: 2 mins
From 13 June a new traffic safety system will be in use on the A282 (M25) northbound approach to the Dartford crossing tunnels.

The system will identify and stop oversized vehicles or those carrying dangerous goods from entering the tunnels. It will also enable dangerous goods vehicles to be escorted through the tunnels safely and stop traffic in the event of an incident in the tunnels.

Electronic message signs on the approach to the traffic safety system will provide drivers with information relating to road conditions and safety.

Signs on gantries over the carriageway will display variable speed limits to keep traffic flowing safely, dependant on the road conditions at the time. A red X symbol will show that a lane is closed because of an incident or people working on the road.

Additional electronic message signs will be used in the safety system to give instructions to goods vehicle drivers who have failed to comply with the size and content restrictions of the tunnels.

Traffic signals will be used to stop and direct oversized vehicles, or those carrying dangerous goods that are not approaching the tunnels in the correct lane. The signals will also be used to stop traffic in the event of a tunnel emergency. Red light camera enforcement will also be in use at the traffic signals.

Barriers will be used in conjunction with traffic signals to stop vehicles and enforce crossing restrictions when required.

Average speed camera enforcement will be in use at the Dartford Crossing. Drivers should drive at speeds appropriate to the road conditions and must not exceed the variable speed limits displayed.

Related Content

  • January 11, 2017
    RAC survey shows big safety gains with average speed enforcement
    Cheaper and easier communications are providing authorities with new options for influencing driver behaviour. Colin Sowman reports. It’s official; Average speed cameras (ASCs) cut the number of fatal or serious injury crashes by more than a third.
  • June 22, 2016
    Enforcement comes in many guises
    Colin Sowman looks at some enforcement case studies from around the world. It is a sad fact of life that unenforced laws are not adhered to by a sometimes sizable proportion of the public and once enforcement is seen to be lacking, some drivers can take this to extremes and authorities must decide how to regain control.
  • April 19, 2017
    TEXpress adds reversible managed lanes
    Land availability restrictions and tidal traffic flows have led to the implementation of a novel managed lane configuration in Texas, as Colin Sowman finds out. Dealing with traffic congestion related to the ‘tidal flows’ caused by large numbers of commuters making their way into major business hubs in the morning and returning to the suburbs in the evening, has seen the widespread use of adaptive signal timing and even reversible lanes.
  • November 14, 2014
    Dart Charge goes live on 30 November
    With the launch of Dart Charge set for 30 November, work to remove the toll booths will begin on Friday 28 November - the same weekend the new payment arrangements go live. Dart Charge means that drivers will no longer stop at a barrier to pay the charge. Instead, they will pay online, by phone, by post or in one of thousands of payzone retail outlets. The new payment arrangements will signal the start of major construction work to improve the road layout at the crossing, with 27 lanes of traffic reduced