What should you do if you see warning lights and hear bells ringing while driving over a level crossing?

Explanation: If the amber warning lights come on as you're approaching the crossing, you must stop unless it's unsafe to do so. Red flashing lights together with an audible signal mean you must stop. If the warning lights and alarm start as you're driving over the crossing, continue and clear the crossing; it would be dangerous to stop at that point.

Category: Band 2 traffic signs and signals (2021)

References: The Official DVSA Guide to Driving: Section 6, The Official DVSA Guide to Driving: Section 7, Highway Code: Rule 293