Warning signs

Traffic signals ahead

Traffic signals

What does this sign mean?

The three-lamp symbol warns that traffic lights control the road ahead, typically where the signals are hidden by a bend, a crest or a queue. It gives you time to slow down and check the signal rather than arriving at speed. Approach ready to stop, and remember that a green light only means you may proceed if the road beyond is clear. Theory test questions use it to check you treat a warning of signals as a reason to reduce speed, not a promise that the lights will be green.

Highway Code references

• Rule 109 from General rules, techniques and advice for all drivers and riders (103 to 158)

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