When traffic lights are out of order, no one has priority. Drivers must treat the junction as an unmarked crossroads and proceed with caution, giving way as necessary. Generally, the normal right-of-way rules apply: vehicles should give way to the vehicle on their right, and drivers should yield to pedestrians in crosswalks. If two vehicles arrive simultaneously, the vehicle on the right has priority. Drivers must stop fully, observe other road users, signal intentions clearly, and proceed safely. If the traffic light outage occurs at a busy intersection, it is often treated as a four-way stop, meaning each driver stops and the first to arrive goes first, or if simultaneous, the vehicle on the right goes first. Drivers should always be cautious and patient in these situations, prioritizing safety.