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Highways England has confirmed Operation Brock will be stood down as soon as possible — 24 hours after it came in to force.
The traffic management scheme came into effect yesterday morning, with a contraflow along the M20 between Ashford and Maidstone in both directions, together with a 50mph speed limit, leaving the coastbound stretch for lorries.
It was put in place because of the expected Brexit deadline of October 31.
But, this morning, a Highways England spokesman said the scheme would be stood down "as soon as it is practicable".
It comes after the EU confirmed a three-month extension to the Brexit deadline.
It is not yet known when exactly Operation Brock will be deactivated, but the implementation of the restrictions is said to take around 48 hours.
The authority said the preparation was a "complicated operation" involving putting out 7,500 traffic cones and 350 signs.