Location : The junction of the A414 and the A1M .

Location : The A5 southbound between the junctions with the A4146 South and the A4012 .

Location : The A47 eastbound between the A1065 and the junction with the A1075 .

Location : The M25 anticlockwise exit slip at junction J21 .

Location : The M40 southbound at junction J9 .

Location : The M40 southbound entry slip at junction J9 .

Location : The A34 southbound entry slip from the A423 north of Kennington.

Location : The M40 northbound between junctions J8A and J9 .

Location : The A308M eastbound between the junctions with the M4 and the A308 .

Location : The M4 westbound between junctions J13 and J14 .

Location : The M4 westbound between junctions J6 and J7 .

Location : The M4 westbound at junction J6 .