noun
A road designed for high-speed automobile traffic, often with limited access. Similar to 高速道路, but 自動車道 may be used in specific names or contexts.
この自動車道は夜間工事のため通行止めです。
This expressway is closed due to nighttime construction.
新しい自動車道が開通して、通勤時間が短くなった。
A new motorway opened, shortening my commute.