追おい越こし車しゃ線せん

noun

passing lane; fast lane; outside lane

Refers to the lane on a multi-lane road used for overtaking slower vehicles. In Japan, this is typically the rightmost lane on expressways.

• 高こう速そく道どう路ろでは、追おい越こし車しゃ線せんを走はしり続つづけてはいけません。

  On expressways, you must not keep driving in the passing lane.

• 追おい越こし車しゃ線せんに出でるときは、後うしろをよく確かく認にんしてください。

  When moving into the passing lane, check behind you carefully.