Traffic signals
Updated 5 December 2023
Applies to England, Scotland and Wales
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In most cases, in addition to the primary signals at the stop line, there are duplicate signals, known as secondary signals, located on the opposite side of the junction. If the primary signal is not working, you must obey the secondary signal as if it were the primary signal.
RED means STOP. Wait behind the stop line on the carriageway until GREEN shows.
RED and AMBER also means STOP. Do not pass the stop line until GREEN shows.
GREEN means go IF THE WAY IS CLEAR. Take extra care if you intend to turn left or right, and give way to pedestrians who are crossing.
AMBER means STOP. 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.
Signals indicating a right turn
Although you may turn right on a full green signal, a right-turn GREEN ARROW showing at the same time indicates that turning right should be easier. Always check that opposing traffic has stopped before proceeding. If the full green is replaced by an ahead or left-turn arrow, you must wait until the right-turn arrow shows before you turn right.
Signs may be placed with signals to qualify the meaning of the full green signal where movements through a junction are restricted.
Signs may be placed with signals to qualify the meaning of the full green signal where movements through a junction are restricted.
If a green arrow is shown with a red signal and the way is clear, you may go, but only in the direction shown by the arrow.
Light signals for the control of pedal cycles (alternative types). RED, AMBER and GREEN have the same meanings as at other traffic signals.
Low-level cycle signal may be used as a repeater or as an early release function mounted on the same post as a traffic signal or full-size cycle signal. It may be used on its own to signal segregated cycle movement.
In addition to level crossings, these signals may be used at other locations, such as lifting bridges, airfields or fire stations. When the RED lights are flashing you must stop. AMBER has the same meaning as at normal traffic signals.