traffic lane; road lane
Refers to a marked lane on a road for vehicles. Used in contexts like driving, traffic rules, and navigation.
This road has two lanes on each side.
Please check behind you before changing lanes.
This road has two lanes on each side.
He drifted out of his lane because he was falling asleep at the wheel.
Stay within your lane while driving.
Please proceed slowly, following the lane.
車道 refers to the whole roadway used by vehicles (as opposed to the sidewalk), while 車線 refers to one individual marked lane within that roadway.
Used for lanes as long, line-like things.
Compound of 車 (しゃ, 'vehicle') and 線 (せん, 'line'), literally 'vehicle line'. The reading しゃせん is the standard on'yomi combination.