The 670V40 road sign clearly indicates a maximum speed limit of 40 miles per hour (64 km/h) in Great Britain. This is a mandatory speed limit that must not be exceeded. While this sign sets the upper legal limit, remember that safe driving always requires you to adjust your speed based on traffic, weather, visibility, and road conditions, potentially driving slower than 40 mph. Pay close attention to these signs as they are crucial for both road safety and passing your theory test.
This sign dictates a strict maximum speed of 40 mph, crucial for your theory test revision and safe driving. Mastering road sign meaning ensures you comply with legal requirements and adapt your driving to posted limits.
Speed signs shape both legal compliance and safe driving technique. The number or symbol on the sign must be understood before the vehicle reaches the point where the rule begins, and the driver still has to adapt to weather, traffic, visibility, road surface, and stopping distance. A strong theory response is to slow progressively, keep good spacing, and avoid treating the posted value as a target. It is listed in the catalogue as code 670V40.
"Maximum speed 40 mph (64 km/h)" controls or explains a speed requirement. It tells the driver when a speed limit, speed zone, minimum speed, reminder, or enforcement-related condition applies.
Get clear, practical answers to the most common questions about the 670V40 - Maximum speed 40 mph (64 km/h) 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 670V40 sign, often seen in Great Britain, means you must not drive faster than 40 miles per hour (approximately 64 km/h). This is a legal speed limit, and exceeding it can result in penalties.
No, the 40 mph is the MAXIMUM speed allowed. You should always drive at a speed that is safe for the current conditions. This includes factors like traffic, weather, visibility, road surface, and the presence of pedestrians or cyclists, which might require you to drive slower than 40 mph.
A common trap is thinking the posted speed is a target to drive at. Remember, it's a maximum. Another trap is not considering how weather or traffic might necessitate a lower speed, even though the sign shows 40. Always prioritise safety over the posted limit if conditions demand it.
To prepare for the theory test, understand that this sign represents a strict upper limit. Focus on questions that test your ability to choose a safe speed based on conditions, not just the posted limit. Practise recognising the sign and recalling the correct behaviour for different scenarios.
You might see a 40 mph speed limit sign in various locations, such as on rural roads, in built-up areas where the national speed limit doesn't apply, or as a temporary restriction due to roadworks or specific local traffic management. Always be observant for the sign and any accompanying zone or terminal signs.
A clear reference image of the 670V40 - Maximum speed 40 mph (64 km/h) road sign used in Great Britain.

The 670V40 - Maximum speed 40 mph (64 km/h) road sign may also be known by these alternative names or terms.
The 670V40 - Maximum speed 40 mph (64 km/h) road sign is part of the Great Britain Speed Limit Signs category, which groups together signs with similar rules and functions.
Reviewing related speed limit signs helps solidify your understanding and reduces confusion during your driving theory test revision. Comparing signs like 'Maximum speed 40 mph' with others aids sign recognition and improves your recall of traffic rules for exam preparation.

Understand the 20 mph Maximum Speed Limit Road Sign

Obey the Maximum Speed 30 mph Traffic Sign

Maximum Speed 50 mph (80 km/h) Traffic Sign Explained

Maximum Speed 60 MPH (97 km/h) Road Sign Explained

The National Speed Limit Applies Sign (671) Explained

Understand the 30 mph Minimum Speed Limit Sign (Code 672)

You've reached the end of the 30 mph minimum speed limit.

Prepare for the 20 mph speed limit zone ahead with this essential traffic sign.
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