Helen Whately, MP for Faversham and Mid Kent, said Operation Brock was “beyond infuriating” and that she backed the push for a scaled-back version.
“Brock jams up our roads when traffic grinds to a halt, lorries cut through villages, and families face delays getting to work,” she said.
“It was meant to be only for emergencies, now it’s a regular headache.”
Operation Brock is funded by the DfT, with decisions on its use made by the Kent and Medway Resilience Forum.
On average, the operation costs about £250,000 each time it is deployed, a Freedom of Information request revealed.
The scheme was put in place overnight on Monday and was expected to be removed overnight on 22 December, with the motorway reopening as normal on 23 December.
The Kent and Medway Resilience Forum said if traffic started to build, drivers should check their route before setting off, allow extra time for their journey and pack their car with essentials, including food, water and medication.
In July, Kent County Council said it was looking for alternatives to Operation Brock, including an off-road lorry facility to try to ease congestion.
