Rules ›
Intersections and roundabouts
Intersections are where most accidents happen. The check asks who has priority, when to slow down, and how to use a roundabout.
Key rules
- Near and inside an intersection, watch for right-turning cars and pedestrians and use the safest speed you can.
- Without signals, if the crossing road is a priority road or clearly wider, slow down and do not block cars on that road.
- On roads of similar width, give way to a tram or a car coming from your left.
- At a "一時停止" sign (or a flashing red signal), stop at the stop line, then give way to crossing traffic.
- At a flashing yellow signal, you may go on with care for other traffic.
- Slow down (徐行) at an intersection where you cannot see left and right, unless it is signal-controlled or you are on the priority road.
- A right-turning car must not block a car going straight or turning left, even if it entered first.
- Do not enter an intersection, even on green, if traffic ahead may make you stop inside and block the crossing road.
- Roundabout: traffic goes round clockwise. Enter slowly and give way to vehicles already inside. Keep to the left edge and go slowly.
Numbers to remember
30 mTurn signal at an intersection starts 30 m before it.
Common traps
- "The car that arrived first has priority." Wrong: the priority road, the wider road or the car from the left comes first.
- "Green means you may always enter." Wrong: not if you would be stuck inside the intersection.
- The left-side priority rule is for roads of similar width. It does not apply if the other road is a priority road or clearly wider.
- In a roundabout, vehicles already inside have priority over those entering.
- Slowing down (徐行) and stopping (一時停止) are not the same.
With left-hand traffic, the car from your left has priority on equal roads, and roundabouts go clockwise. This is the opposite of right-hand-traffic countries.
Try 2 questions
At an intersection with no signal or other traffic control, where you are not on a priority road and the view to left and right is blocked, you must slow down (jokō).
Answer: ○ Jokō, a speed at which you can stop immediately, is required at such blind intersections.
After stopping at a 'stop' sign, you have the right of way over vehicles on the crossing road.
Answer: × Even after stopping, you must not obstruct vehicles on the crossing road.