The road is clear.

道路通畅。

《新英汉大辞典》

Developing the Yangtze River Economic Belt is a systematic project which calls for a clear road map and timetable.

发展长江经济带是一项系统工程，需要有明确的路线图和时间表。

youdao

Lorry drivers say they have almost abandoned the practice of signal cars to overtake when the road is clear, because many of the cars took too long to pass.

卡车司机说，他们几乎已经放弃了信号灯车在道路畅通时超车的做法，因为很多车辆都花了很长时间才超车。

youdao

The cause of the crash is not clear but the road was wet and foggy in patches.

BBC: M5 crash: Retired couple from Newport among victims

Yes, the road has been, and will be, long and arduous, but the prize is clear.

WHITEHOUSE: President Obama & Prime Minister Cameron Joint Press Availability | The White House

The Consumer Financial Protection Bureau (CFPB) is setting clear rules of the road and will ensure that financial firms are held to high standards.

WHITEHOUSE: Wall Street Reform: The Dodd-Frank Act