Right-of-Way, Intersections and Roundabouts
Right-of-way questions test priority, not courtesy alone. Oman drives on the right, so at an uncontrolled intersection you generally give way to traffic approaching from your right, and to vehicles already on the main road when you emerge from a side road. A vehicle turning left across oncoming traffic must wait until the gap is safe. At a give-way line you slow enough to stop; at a stop line you stop completely, then proceed when clear.
Roundabouts
Give way to traffic already circulating, approaching from your left. Enter only when the gap is safe and do not stop inside the roundabout unless traffic blocks the exit. Use the lane marked for your exit; if unmarked, keep right for the first exit/right turn and use the left lane for later exits. Signal left before leaving.
Worked example
You reach a four-way uncontrolled junction. A car is approaching from your right and a lorry from your left. You give way to the car on your right; the lorry must give way to you because you are on its right. Do not wave the lorry through-your priority is not yours to give away if it creates confusion.
Traps
Stopping on the circulatory carriageway, entering a roundabout because your indicator is on, assuming a large vehicle will stop, and treating a give-way line as optional. Also watch pedestrians at crossings and emergency vehicles with sirens: pull over safely and let them pass.