Traffic Rules, Right-of-Way and Intersections
Who goes first
Right-of-way is never taken; it is given or yielded. Traffic in Saudi Arabia keeps right, and at an uncontrolled junction with no signs, lights or markings you yield to traffic approaching from your right.
Where a stop line and STOP sign exist you must come to a complete halt, then go only when clear; a give-way line requires you to slow and stop only if necessary.
Turning traffic yields to traffic going straight. A vehicle turning left across oncoming traffic must wait for a safe gap. When you turn into a new road you yield to pedestrians crossing that road and to vehicles already on it.
At roundabouts, traffic already circulating has priority; entering drivers give way, keep to the lane matching their exit and avoid changing lanes inside the circle.
Emergency vehicles using lights and sirens have priority - pull to the right and stop if needed.
Traps and worked example
Typical traps: two vehicles arriving together at an unmarked junction (the one on the left yields); a driver signalling to turn but not yet turning (a signal is intention, not priority); a junction blocked by queuing traffic (do not enter until your exit is clear).
Worked example: you are on the stem of a T-junction turning right into the main road. A pedestrian is crossing the mouth of that road and a car is approaching from your left. You stop at the line, let the pedestrian finish, then wait for the car from the left because it is already on the main road. Only when both are clear do you turn.