This 'All Four Lanes Closed' signal (6006.6) is a critical live traffic management instruction used on Great Britain's motorways. It indicates that all available lanes ahead are closed, usually due to an incident, roadworks, or severe weather. You must obey this signal immediately, reducing speed smoothly and preparing to leave the carriageway or divert as directed, ensuring your safety and the flow of traffic.
This essential motorway signal means all lanes ahead are closed, requiring immediate action to ensure safety and compliance with traffic rules. Understanding its meaning is crucial for your theory test revision and for navigating Great Britain's roads safely.
Motorway signals are live controls used to manage traffic, incidents, queues, lane closures, weather, and temporary restrictions. This signal applies to the lane, carriageway, or movement indicated by its position and display. Drivers should obey it promptly, check mirrors before slowing or moving lanes, and expect conditions ahead to differ from the normal motorway layout. It is listed in the catalogue as code 6006.6.
"All four lanes closed" is a motorway signal message or lane-control instruction. It may warn of changing conditions, control speed, close lanes, or direct traffic to leave the motorway.
Get clear, practical answers to the most common questions about the 6006.6 - All four lanes closed 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.
The 'All Four Lanes Closed' signal, identified by code 6006.6, is displayed on overhead gantries or alongside the carriageway on motorways. It means that all lanes ahead are closed and you must not proceed in those lanes. This is a live control message designed to manage traffic flow and ensure safety during incidents or roadworks.
Upon seeing the 'All Four Lanes Closed' signal, you must check your mirrors, slow down smoothly, and prepare to move to an open lane if one is available and directed. Never enter a lane that is displaying a red X, which this signal often accompanies. You should be prepared for queues, diversions, or further instructions.
No, it is never safe or legal to ignore the 'All Four Lanes Closed' signal. These signals are crucial for managing traffic safely, especially when there are hazards like accidents, emergency services working, or dangerous road conditions ahead. Ignoring it can lead to serious accidents and will be penalised heavily.
A common trap is assuming you can continue in a lane simply because it is not immediately clear why it's closed. Always treat a closed lane (indicated by a red X or a signal like 'All Four Lanes Closed') as an absolute prohibition. Another trap is braking harshly; you should aim to slow down smoothly and safely after checking mirrors, unless immediate danger necessitates hard braking.
Yes, motorway signals are live controls and can change rapidly. The 'All Four Lanes Closed' message may be displayed only for a short period during an incident or as traffic conditions change. Always remain alert and observe any subsequent signals or instructions from traffic officers.
A clear reference image of the 6006.6 - All four lanes closed road sign used in Great Britain.
The 6006.6 - All four lanes closed road sign may also be known by these alternative names or terms.
The 6006.6 - All four lanes closed road sign is part of the Great Britain Motorway Signals category, which groups together signs with similar rules and functions.
Comparing signs like 'All four lanes closed' with other motorway signals aids retention and reduces confusion, crucial for your theory test revision. Sharpen your sign recognition skills by exploring these similar traffic signs and master Great Britain's road rules.
Motorway Advisory Speed 50 mph: What this signal means for you.
Motorway Signal: Prepare to Leave at the Next Exit
Motorway Signal: Lanes 2 and 3 Closed Ahead, Use Lane 1 With Caution
Understand the 'End of Temporary Motorway Restrictions' Signal
Motorway signals: What to do when all three lanes are closed
Understand the 'Both Lanes Closed' motorway signal (6006.4)
Motorway Signal: Lane 2 Closed Ahead, Use Lane 1 With Caution
Motorway Signal 6006.7: Lane 1 Closed – Obey Instructions and Proceed with Caution
After reviewing the full list of road signs, challenge yourself with practice questions focused specifically on sign recognition. Reinforce your learning and ensure you're fully prepared to identify and understand all traffic signs on the DVSA theory test.
Browse All GB Road Signs List