Reversible lanes are lanes in which traffic may travel in either direction, depending on displayed overhead signal (a green arrow or a red cross). Reversible lanes are used to improve traffic flow during rush hours.

Where are reversible lanes most common?

Reversible lanes are also commonly found in tunnels and on bridges, and on the surrounding roadways – even where the lanes are not regularly reversed to handle normal changes in traffic flow.

How are reversible lanes indicated on the road?

What are Reversible Lanes? ... Reversible lanes are marked by traffic signs, pavement markings, and lane signals. Generally, a reversible lane will be open in one direction during the morning commute, and in the other direction in the afternoon.