Additional traffic joining from the left ahead; which has priority?

Additional traffic joining from the left ahead; which has priority?

• A. Joining traffic from left has priority
• B. Pedestrian priority
• C. All vehicles must stop
• D. Main carriageway has priority over joining traffic from right-hand lane of slip road

Answer: (D)

Traffic on the main carriageway has priority over vehicles joining from a slip road. When you’re on the slip road, you must give way to traffic already on the main road and only merge when there is a safe gap. Your position in the slip road—left or right lane—doesn’t change this rule: you’re still joining the main carriageway, so you must yield to main-road traffic. Pedestrian priority only applies at crossings, and a stop for all vehicles isn’t a general rule here unless a sign or signal requires it. So the correct principle is to merge only when the main road traffic allows it.

Traffic on the main carriageway has priority over vehicles joining from a slip road. When you’re on the slip road, you must give way to traffic already on the main road and only merge when there is a safe gap. Your position in the slip road—left or right lane—doesn’t change this rule: you’re still joining the main carriageway, so you must yield to main-road traffic. Pedestrian priority only applies at crossings, and a stop for all vehicles isn’t a general rule here unless a sign or signal requires it. So the correct principle is to merge only when the main road traffic allows it.