The total number of occasions where traffic was stopped at the Dartford Tunnel Crossing to allow crossing control vehicles to escort hazardous vehicles in the last 12 months are as follows:
It is important to note however that when possible Highways England will escort hazardous vehicles when the tunnel is already closed to remove oversize vehicles from the carriageway, avoiding the need for additional closures. Such occasions are included in the above figures.
Highways England ensures that every opportunity to escort hazardous vehicles, without the need for additional closures, is utilised.
The Lower Thames Crossing has not yet modelled the potential reduction in the number of escorted vehicles per day. This is something which would be part of future work.