You see this sign on a motorway hard shoulder: a red diagonal line across a black car on the hard shoulder, with the words 'Hard shoulder for emergency use only'. After fixing a breakdown, what should you do before rejoining the carriageway?

Explanation

According to the Highway Code, Rule 276, after a breakdown on the motorway you should use the hard shoulder only for emergencies. Before rejoining the carriageway, you must drive along the hard shoulder to build up speed, check mirrors and blind spots, look for a safe gap in the traffic, and make sure there are no stationary vehicles ahead on the hard shoulder before indicating and merging safely.