Bournemouth Borough Council has erected a No U-Turn sign on the Blackwater slip-off along the A338 to stop motorists trying to jump ahead of the queues.
Commuters heading south on the A338 must use the right lane if heading to Bournemouth as the roadworks approach, but some have been using the left lane, which typically has less traffic, doing a U Turn then getting back on at the same junction.
In a message to road users, the council says: “We encourage road users to be considerate of others and refrain from using the exit off at Blackwater Junction to jump ahead of the southbound traffic. There is a legitimate property access at Blackwater and we ask you to drive safely and avoid making U-turn manoeuvres in this area, on the slip roads or at the traffic lights.
“Please think ahead, follow the traffic signs and get into the appropriate lane as soon as possible. Lane one southbound approaching Blackwater is a dedicated lane for those motorists wishing to exit off the slip road to the B3073. All motorists heading to Bournemouth should use lane two of the southbound carriageway.”
The roadworks are set to continue till June 2019.