Drivers of lorries weighing more than 7.5 tonnes heading for Eurotunnel or the Port of Dover on the M20 should follow signs directing them onto the coastbound carriageway of the M20 between junction 8 for Maidstone and junction 9 for Ashford. A 30mph speed limit is in place and, in the event of disruption at the ports, lorries could be queued on this section of motorway.

All other drivers can continue their journeys as normal. On the M20, two lanes remain open to traffic in each direction between junctions 8 and 9, using a contraflow on the London-bound carriageway, with a 50mph speed limit in place.

Operation Brock is the name for a series of measures that improve Kent’s resilience in the event of cross-channel disruption. It has stages that can be deployed sequentially, scaling up or down to meet demand. In addition to the M20 contraflow, lorries can be routed to Manston Airfield and, if needed, the M26 motorway can be closed and used to queue HGVs too. The operation is an interim measure which was successfully deployed in March 2019, and crucially keeps the M20 open in both directions using a contraflow system.

It has been deployed now in response to potential delays at the ports in the coming days or weeks. Its deployment will be kept under continual review and it will be stood down when it is no longer needed.