Since it launched on 30 November last year, Dart Charge has already helped to speed up journeys by removing the need to stop at a barrier to pay the Dartford Crossing charge.
To get the most benefit from the changes, the UK Highways Agency has developed a new way of identifying and managing over-height vehicles and dangerous loads before they enter the tunnel, a job that until now was carried out at the payment barriers.
All major tunnels have rules about what substances can be taken through them an
