Centre line (chūō-sen)
中央線 · chūō-sen
Definition
The chūō-sen marks the centre of the road. It is not always at the physical middle — on some roads it shifts by time of day — and it is not a stop-position marker. It tells you which part of the road is the centre so you keep to the correct side.
On the test
True/false example: "The 'centre line' sign shows the position where a vehicle should stop." — False. It shows the centre of the road, not a stopping position.
The law behind it
The Rules of the Road (Appendix 3) define the centre-line sign/marking as indicating the centre of the road — not a stop line, which is a separate marking.
Rules of the Road, Appendix 3 (Types and meanings of signs and markings) (official source)
Related guide
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