Oxford Dictionary English contraflow noun noun BrE BrE//ˈkɒntrəfləʊ// ; NAmE NAmE//ˈkɑːntrəfloʊ// (British English) Controlling traffic, Motoring problems and accidents Add to my wordlistjump to other resultsa system that is used when one half of a large road is closed for repairs, and the traffic going in both directions has to use the other half A contraflow system is in operation on this section of the motorway. Wordfindertrafficclamp, cone, contraflow, pedestrian, roadworks, speed hump, tailback, toll, traffic, zebra crossing See related entries: Controlling traffic, Motoring problems and accidentsCheck pronunciation: contraflow oxfordlearnersdictionaries.com