1, A contraflow is in operation between Junctions 6 and 12.

2, A contraflow system is in operation on this section of the motorway.

3, A contraflow is in operation at the works near Junction 5.

4, A contraflow is in operation/in force between junctions 13 and 14 on the motorway.

5, In the meantime, motorists caught speeding through the contraflow can expect to receive a court summons in the post.

6, There's a contraflow between junctions 15 and 16 near Swindon.

7, While repairs are being carried out on this part of the motorway, a contraflow system is in operation.

8, The successful firm will also have to provide a contraflow bus lane for the authority.

9, But the police blame the tailbacks on motorists driving too fast through the contraflow and causing accidents.