You have to make a journey in fog. What’s the most important thing you should do before you set out?

Explanation: Before starting any journey, make sure your windows and mirrors are clean and your lights are working. You need to be able to see clearly and be seen by other road users. This is especially important when visibility is reduced, as in fog or heavy rain.

Category: Band 2 traffic signs and signals

References: The Official DVSA Guide to Driving: Section 12, Highway Code: Rule 235