Before a level crossing, two red lights flashing alternately indicate...
Signage: Traffic lights
Explanation
Alternate red lights at a level crossing
- Meaning: Two red lights flashing alternately indicate a **temporary prohibition of passage**.
- Reason: They signal an **immediate danger**, usually the **approach of a train**.
- Mandatory behavior: **Stop and wait** before the stop line or barrier, **without crossing**, even if the train is not visible. Resume driving only when the lights **turn off** and, if present, the barriers **are raised**.
- Other places where they appear: **Movable bridges**, **ferry pontoons**, **emergency vehicle exits**, and areas with **low-flying aircraft**.
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