What should you do when these lights begin flashing red at a level crossing?

Explanation: The flashing red lights indicate that a train will be passing shortly, and are shown before the barrier lowers and while it's down. You should stop before the white line. Some crossings display an amber light before the red lights. You should stop for this too, unless you've already passed the white line.

Category: Hazard awareness (2021)

References: The Official DVSA Guide to Driving: Section 6, Highway Code: Rule 291-299