Light signals controlling traffic

Light signals used to control traffic, including traffic light signals, flashing red lights, motorway signals and lane control signals.

Traffic light signals


RED means ‘Stop’. Wait behind the stop line on the carriageway


RED AND AMBER also means ‘Stop’. Do not pass through or start until GREEN shows


GREEN means you may go on if the way is clear. Take special care if you intend to turn left or right and give way to pedestrians who are crossing


AMBER means ‘Stop’ at the stop line. You may go on only if the AMBER appears after you have crossed the stop line or are so close to it that to pull up might cause an accident


A GREEN ARROW may be provided in addition to the full green signal if movement in a certain direction is allowed before or after the full green phase. If the way is clear you may go but only in the direction shown by the arrow. You may do this whatever other lights may be showing. White light signals may be provided for trams

Flashing red lights

At level crossings, lifting bridges, airfields, fire stations, etc.


At level crossings, lifting bridges, airfields, fire stations, etc.

Motorway signals


You MUST NOT proceed further in this lane


Change lane


Reduced visibility ahead


Lane ahead closed


Temporary maximum speed advised and information message


Leave motorway at next exit


Temporary maximum speed advised


End of restriction

Lane control signals


Lane control signals

Green arrow - lane available to traffic facing the sign

Red crosses - lane closed to traffic facing the sign

White diagonal arrow - change lanes in direction shown

This website uses cookies to ensure you get the best experience on our website. Privacy Policy