You are driving on an unrestricted dual carriageway at night and see a slow-moving vehicle ahead with a flashing amber beacon on its roof. What should you do?

Explanation

According to Highway Code Rule 225, flashing amber beacons warn of slow-moving or stationary vehicles, or vehicles with abnormal loads. You should approach with caution, slow down, keep a safe distance and only overtake when it is clearly safe. On unrestricted dual carriageways, very slow vehicles (such as some tractors) must use a flashing amber beacon, so you should be prepared to adjust your speed and position accordingly.