
Light signals controlling traffic
Lane ahead closed signal
Lane ahead closed
What does this light signal mean?
This signal warns that a lane ahead is closed and that you will need to change lane before you reach it. It is an advance warning rather than the closure itself, giving you distance to move over safely. Check your mirrors and signal early, because everyone in the lane is being told the same thing at the same time. The closure will be marked by a red X when you reach it.
Highway Code references
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