Who has priority when traffic in the right-hand lane of a slip road joins the main carriageway?

• A. Right-hand lane of slip road has priority over left-hand
• B. Left-hand lane has priority
• C. Main carriageway has priority
• D. Pedestrian priority

Answer: (A)

When joining from a slip road, vehicles already on the main carriageway have priority. You must give way to traffic on the main road and merge only when there is a safe gap. The lane you’re in on the slip road doesn’t grant you priority over vehicles on the main road, so you should slow, look, signal, and merge carefully to fit in with the traffic on the main carriageway. Pedestrians aren’t a factor here. The essential rule is to avoid disrupting traffic on the main road by waiting for a safe opportunity to merge.