M20 chaos: Drivers risk £300 fine on busy motorway amid major disruptions by Eurotunnel and Port of Dover

The counterflow measure known as Operation Brock is part of a series of measures to improve access routes to and from the Dover crossing.

The measure separates traffic into different lanes across both carriageways and keeps the M20 and other local roads open and moving, as well as controlling how port-bound HGVs make their way to the Port of Dover or the Eurotunnel.

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Once the Brock contraflow is in place all signs should be followed or drivers could risk fines of £300.

Any drivers caught trying to cut ahead will also be sent to the back of the queue by Police or enforcement agents.

This includes drivers trying to bypass the M20 by using the M2/A2 at Brenley Corner to avoid the system.

All other coast-bound traffic including local freight and car drivers should follow the signs in place by National Highways.

They should cross over to enter the contraflow on the M20 London-bound carriageway and follow the designated signs.

While the measure is in place, anyone planning to use the Eurotunnel and the Port of Dover is advised to plan their journeys in advance and check with the travel operator before setting out.

They should also allow more time for their journeys and make sure they have plenty of fuel and supplies such as food and drink.

In response to the planned closure, Simon Jones, strategic lead of the Kent and Medway Resilience Forum, said the council isdoing everything it can to find more effective ways to manage traffic heading through Kent to cross the channel.

He added: “One thing that could help is stepping up measures to ensure that freight drivers stick to the plan and cannot circumnavigate the queues.

“This only adds to congestion, particularly in the centre of Dover. However, these freight permits are not a ‘fix all' solution.

"There is no doubt that, in busy periods, the situation on the roads heading through Dover remains extremely fragile.”

During the summer period, traffic flows will be continually monitored with the council stating Operation Brock will be removed “as soon as possible, once the impact of disruption has reduced”.

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To stay up to date with the latest information, drivers should check the National Highways website and social media sites.