Noun
Flow in the opposite direction to normal.
Example: Contra-flow cycling is most often applied on basic cycle network links in low-speed local access roads, both within and outside the built-up area (European English)
Example: Contra-flow cycling is a regulatory measure. In streets and roads with a one-way traffic restriction, cyclists are exempt from the one-way restriction and are allowed to drive against the flow of motorized traffic. (European English)
An abnormal state of a road or motorway where the traffic temporarily travels in the opposite direction to normal, usually as a result of repair work or an accident.
Source: en.wiktionary.orgThe latest trial saw junctions 13 to 16 of the M1 had 60mph limits permanently in place, while junctions 13 to 15 of the M6 had a contraflow scenario with 60mph on one side and 50mph on the other. Source: Internet
"It is welcome news the Operation Brock contraflow on the M20 is being dismantled, as we are getting Brexit done. Source: Internet
To make sure the contraflow is deployed safely, the M20 will be closed overnight in both directions between junctions 8 and 9 on the nights of December 27 and 28. Source: Internet
Operation Brock, created a contraflow system where the London-bound carriageway was reduced to two narrow lanes. Source: Internet