高こう速そく車しゃ線せん

noun

high-speed lane; fast lane

Refers to a lane on a highway or expressway designated for faster traffic, often the passing lane.

• 高こう速そく道どう路ろの高こう速そく車しゃ線せんを走そう行こう中ちゅうに、後うしろからパトカーが近ちかづいてきた。

  While driving in the fast lane on the expressway, a police car approached from behind.