[noun] [C] [esp. UK] - a temporary traffic arrangement, usually on a motorway, in which traffic travelling in both directions uses one side of the road while the other side is being repairedA contraflow is in operation/in force between junctions 13 and 14 on the motorway.
CONTRAFLOW
Meaning of CONTRAFLOW in English
Cambridge English vocab. Кембриджский английский словарь. 2012