Driving Theory
British Road Signs and Traffic Sign Meanings

Understand the 'Both Lanes Closed' motorway signal (6006.4)

6006.4 - Both lanes closed British road sign meaning

This 'Both Lanes Closed' signal, also known as 6006.4, is a vital instruction displayed on UK motorways. It warns you that the lanes ahead are not open for travel, often due to incidents, roadworks, or dangerous conditions. You must obey these signals promptly, reducing speed smoothly and preparing to move to an open lane if directed.

Interpreting the 'Both Lanes Closed' Motorway Signal

Mastering the 'Both lanes closed' signal (6006.4) is vital for safe motorway driving and effective theory test revision. Understanding this warning helps you interpret traffic management instructions and prepare for potential changes on the road ahead, crucial for your Great Britain driving theory knowledge.

Definition of 6006.4

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 6006.4.

Meaning of 6006.4

"Both 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.

Allowed actions for 6006.4

Apply the signal to the lane or carriageway it controls.Reduce speed smoothly and check mirrors before slowing.Move to an open lane when directed and safe.Prepare for queues, incidents, closures, or poor visibility ahead.

Prohibited actions for 6006.4

Do not drive in a lane closed by a red X.Do not ignore a displayed speed restriction or warning.Do not enter the motorway when signals prohibit entry.Do not brake harshly unless needed to avoid danger.

6006.4 - Both lanes closed road sign FAQ

Get clear, practical answers to the most common questions about the 6006.4 - Both 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.

What does the 'Both Lanes Closed' motorway signal (6006.4) mean?

The 'Both Lanes Closed' signal indicates that the lane or lanes indicated by its position are not available for use. This is a live traffic control and can change rapidly. You must never enter a lane displaying a red X, which signifies it is closed.

How should I react when I see the 'Both Lanes Closed' signal?

When you see this signal, you should immediately check your mirrors and slow down smoothly. Prepare to move into an adjacent open lane if safe and necessary, or follow any directions given by the signal. Always expect conditions ahead to be different from normal.

What are the key things to remember about the 6006.4 motorway signal for the theory test?

For the theory test, remember that motorway signals are mandatory instructions. Ignoring a 'Both Lanes Closed' signal or a displayed speed restriction is a serious offence and a common reason for failing the test. Always prioritize safety and follow the instructions promptly.

Can I still drive in the lanes that are 'closed'?

No, you must not drive in any lane that is closed by a red X symbol or a 'Both Lanes Closed' message. This signal is a prohibition and entering a closed lane could lead to a serious accident. Wait for the signal to change or follow alternative directions.

What kind of situations might cause a 'Both Lanes Closed' signal?

This signal is used for various reasons including traffic incidents, accidents, roadworks, adverse weather conditions like fog or ice, or other unforeseen hazards. Motorway signals are dynamic and are used to manage traffic flow and ensure safety in changing circumstances.

6006.4 - Both lanes closed road sign image

A clear reference image of the 6006.4 - Both lanes closed road sign used in Great Britain.

6006.4 - Both lanes closed road sign

Other names for the 6006.4 - Both lanes closed

The 6006.4 - Both lanes closed road sign may also be known by these alternative names or terms.

Both lanes closed6006.4 motorway signalGreat Britain motorway signalmotorway signals

Great Britain Motorway Signals road sign category

The 6006.4 - Both lanes closed road sign is part of the Great Britain Motorway Signals category, which groups together signs with similar rules and functions.

Reinforce Your Knowledge with Similar Signs

Reviewing signs that look alike, like this 'Both lanes closed' signal, sharpens your ability to distinguish between them. This direct traffic sign comparison aids memory and reduces errors during your theory test revision, helping you master similar road signs.

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Lane 2 and 3 closed ahead. Use lane 1 and proceed with caution

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 6006.1.

Road sign

Lane 2 is closed ahead. Use lane 1 and proceed with caution

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 6006.5.

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