What should you do if the red lights start flashing as you approach a level crossing?

Explanation: At level crossings, the red lights flash before and while the barrier is down. At most crossings, an amber light will precede the red lights. You must stop behind the white line unless you've already crossed it when the amber light comes on. Don't be tempted to zigzag around half-barriers.

Category: Hazard awareness

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