The Highway Code

From
Department for Transport
Updated
, see all updates

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 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

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

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

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

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

Alternately flashing red lights mean YOU MUST STOP

Alternately flashing red lights mean YOU MUST STOP

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

Motorway signals

You MUST NOT proceed further in this lane

You MUST NOT proceed further in this lane

Change lane

Change lane

Reduced visibility ahead

Reduced visibility ahead

Lane ahead closed

Lane ahead closed

Temporary maximum speed advised and information message

Temporary maximum speed advised and information message

Leave motorway at next exit

Leave motorway at next exit

Temporary maximum speed advised

Temporary maximum speed advised

End of restriction

End of restriction

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