A contraflow is a situation in which vehicles travelling on a main road in one direction have to use lanes that are normally used by traffic travelling in the opposite direction, because the road is being repaired.
[British]
...a contraflow between Junctions Eleven and Twelve of the M5.
contraflow in British English
(ˈkɒntrəˌfləʊ)
noun
British
two-way traffic on one carriageway of a motorway, esp to allow maintenance work to be carried out or an accident to be cleared
Examples of 'contraflow' in a sentence
contraflow
It makes him think about traffic, their difficult traffic, the contraflow.