Driving Theory
British Road Signs and Traffic Sign Meanings

Understand the 'No Left Turn' Traffic Light Signal in Great Britain

No-Left-Turn - A standard traffic light with a supplemental 'no left turn' sign attached British road sign meaning

This traffic light signal, identified as 'No-Left-Turn', indicates a specific restriction at junctions. You must obey the signal aspect or filter that applies to your lane and intended movement. If a red signal is shown, or if the signal requires you to stop, you must do so at the correct line. Always ensure the way ahead is clear before proceeding, even on a green light or filter arrow. This is crucial for navigating controlled junctions safely and passing your theory test.

Understanding the No Left Turn Traffic Signal

This supplemental 'no left turn' sign clarifies specific junction instructions, crucial for obeying traffic light signals and avoiding potential violations. Master its meaning for your Great Britain driving theory test revision and safe navigation.

Definition of No-Left-Turn

Traffic light signal signs and diagrams help drivers understand how controlled movements work at junctions, crossings, priority sections, or special road-user facilities. This sign may show a standard aspect, a turn filter, a tram or cycle signal, or a priority arrangement. A safe response means stopping at the correct line on red, proceeding only on the applicable signal, and checking that the way ahead is clear. It is listed in the catalogue as code No-Left-Turn.

Meaning of No-Left-Turn

"A standard traffic light with a supplemental 'no left turn' sign attached" shows a traffic-signal aspect, filter, or signal arrangement. The driver must obey the signal that applies to their lane, movement, or road-user category.

Allowed actions for No-Left-Turn

Stop at the correct line when the signal requires it.Prepare to move only when the applicable signal permits it.Proceed on green or a filter arrow only when the way is clear.Watch for pedestrians, cyclists, trams, buses, and turning traffic controlled by separate signals.

Prohibited actions for No-Left-Turn

Do not pass a red signal or stop beyond the stop line.Do not enter a junction you cannot clear.Do not follow a filter arrow for a movement it does not control.Do not assume green means it is safe without checking the junction.

No-Left-Turn - A standard traffic light with a supplemental 'no left turn' sign attached road sign FAQ

Get clear, practical answers to the most common questions about the No-Left-Turn - A standard traffic light with a supplemental 'no left turn' sign attached road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the British driving theory exam in Great Britain.

What does the 'No Left Turn' traffic light signal mean?

The 'No Left Turn' traffic light signal means that a left turn is prohibited when the signal is active. You must obey the specific signal aspect or filter that applies to your lane. If a red light or specific restriction is shown, you must stop and wait for a permissive signal or a change in the signal.

When can I make a left turn if I see a 'No Left Turn' traffic light signal?

You can only make a left turn when the traffic signal explicitly permits it. This might be indicated by a green light or a specific filter arrow allowing a left turn. Always check that the junction is clear and it is safe to proceed before moving off.

What are the common mistakes or theory test traps related to this 'No Left Turn' traffic signal?

A common trap is assuming that any green light allows all movements. With this sign, a green light might apply to straight-ahead or right turns, while a separate signal or no signal at all indicates the restriction for a left turn. Another trap is proceeding on green without checking if the junction is clear or if pedestrians or cyclists have priority.

Do I always need to stop at the white line when I see this 'No Left Turn' signal?

Yes, you must stop at the correct line if the signal aspect shown requires you to stop, such as a red light or a signal indicating a prohibition. If a filter arrow or green light permits a left turn, you should only proceed when it is safe to do so, and you should still be prepared to stop if necessary.

How does this signal differ from standard traffic lights?

This signal is a standard traffic light but with an added, specific restriction for left turns. While a standard green light might generally permit all legal movements, this setup specifically prohibits a left turn under certain signal conditions. Always pay close attention to the exact signal aspect relevant to your intended path.

No-Left-Turn - A standard traffic light with a supplemental 'no left turn' sign attached road sign image

A clear reference image of the No-Left-Turn - A standard traffic light with a supplemental 'no left turn' sign attached road sign used in Great Britain.

No-Left-Turn - A standard traffic light with a supplemental 'no left turn' sign attached road sign

Other names for the No-Left-Turn - A standard traffic light with a supplemental 'no left turn' sign attached

The No-Left-Turn - A standard traffic light with a supplemental 'no left turn' sign attached road sign may also be known by these alternative names or terms.

A standard traffic light with a supplemental 'no left turn' sign attachedA standard traffic light with a supplemental 'no left turn' attachedNo-Left-Turn traffic light signalGreat Britain traffic light signaltraffic light signals

Great Britain Traffic Light Signals road sign category

The No-Left-Turn - A standard traffic light with a supplemental 'no left turn' sign attached road sign is part of the Great Britain Traffic Light Signals category, which groups together signs with similar rules and functions.

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Master complex traffic rules and road safety requirements through targeted study resources.

Explore curated explanations and practical examples to strengthen your visual recognition of essential Great Britain road signs. These supplementary materials provide the context needed to navigate junctions safely and pass your official DVSA theory test.

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A traffic light with attached tram signal lamp, indicating proceed to trams

Traffic light signal signs and diagrams help drivers understand how controlled movements work at junctions, crossings, priority sections, or special road-user facilities. This sign may show a standard aspect, a turn filter, a tram or cycle signal, or a priority arrangement. A safe response means stopping at the correct line on red, proceeding only on the applicable signal, and checking that the way ahead is clear. It is listed in the catalogue as code Red-and-Tram-Proceed.

Road sign

'Wig-wag' signal (Common at level crossings, fire and ambulance stations)

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