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Dover TAP is in place this afternoon.
The traffic control system has been re-imposed due to heavy lorry numbers.
A notice from Kent County Council's highways and transportation department was put out warning of this at 12.56pm.
"It is to prevent Portbound traffic from disrupting the local road network and the A20 through Dover town," the notice explains.
Again it affects port-bound traffic on the A20 at Aycliffe.
The Dover Traffic Access Protocol is regularly brought in when there is a risk of congestion in the town centre.
While it is imposed both cars and lorries given a speed limit of 40mph.
When traffic reaches high volumes vehicles are held at temporary traffic lights until space becomes available.
The system had previously been imposed seven days ago.