noun
emergency road; road for emergency vehicles
A designated road that may be closed to non-emergency traffic during disasters or emergencies; the official English translation is 'emergency road'.
地震のとき、緊急交通路は一般車両が通行できなくなる。
During an earthquake, the emergency road becomes closed to ordinary vehicles.
Compound of 緊急 (emergency) + 交通 (traffic) + 路 (road).