contraflow
n[U, C]
transferring of traffic from its usual half of the road to the other half, so that it shares the lane with traffic coming in the other direction 逆道行駛(車輛在迎面來車一邊的道路上逆行)
[attrib 作定語]
While repairs are being carried out on this part of the motorway, a contraflow system is in operation. 高速公路的這一部分正進行維修, 現實行逆道行駛. =>illus at App 1 見附錄1之插圖, page xiii.