Priority rules, intersections and roundabouts (priorité et carrefours)
Priority in Comoros follows the French model: where nothing else is indicated, the vehicle coming from the right has priority. The exam tests whether you can identify which rule governs a junction - signs, markings, roundabout or officer - and whether you yield cleanly rather than hesitating or pushing through.
The default and its exceptions
- Unmarked crossroads: give way to vehicles approaching from your right (priorité à droite). If you approach from the right, you may proceed, but only after confirming the other driver has seen you.
- A STOP sign, a give-way line or a cédez le passage sign cancels priority-to-the-right: you yield to traffic on the crossing road.
- The yellow diamond gives you priority on that road until the end-of-priority sign.
- Lights and officers override all signs.
Turning and emerging
Turning left, you cross oncoming traffic: give way to vehicles coming the other way and to pedestrians already crossing. Turning right, watch for cyclists and motorcyclists filtering on your right. Emerging from a private drive, car park, track or garage, you yield to everyone on the road.
Roundabouts
Entering traffic gives way to vehicles already circulating. Look left, enter only into a safe gap, keep your lane through the ring and signal your exit - not your entry.
Worked example
At an unmarked town crossroads you want to turn left. A car approaches from your right and another comes head-on, going straight. You wait for the car on your right; the oncoming car also has priority over your turn. Only when both have passed do you turn.
Traps that cost marks
Assuming the wider or busier road always has priority; entering a roundabout because you have signalled; waving another driver through and causing a collision behind you; creeping out to force a gap.