You are driving behind a large, fully loaded lorry on a single carriageway and want to overtake. What should you do before starting your manoeuvre?

Explanation

The Highway Code Rule 164 says that overtaking large vehicles is more difficult and you should only overtake when you are sure you can complete the manoeuvre safely. This means waiting for a long, clear stretch of road, checking carefully for oncoming traffic, and ensuring you have enough space to pass and move back in without cutting in too close. Following too closely, relying on speed, or pressuring the other driver is unsafe.