Operation Stack reserves part of the coast-bound motorway for lorries to park before crossing the Channel.

BBC: P&O ferry

Operation Stack - which reserves part of the coastbound motorway for lorries to park before crossing the Channel - has been in place since early Tuesday.

BBC: M20 in Kent still disrupted by cross-channel backlog

The crowd gathered at the Blackfoot Crossing Historical Park erupts into a din of applause and cheers.

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