The 'Entrance to a 20 mph (32 km/h) speed limit zone' sign (code 674) clearly indicates that you are about to enter an area where the maximum legal speed is restricted to 20 miles per hour. As with all speed limit signs, it’s crucial to adjust your speed progressively before reaching the sign, considering the prevailing conditions like weather, traffic, and road surface. This sign group helps drivers understand various speed regulations, ensuring compliance and promoting safer driving practices on Great Britain's roads.
This sign marks the beginning of a mandatory 20 mph speed limit zone, crucial for understanding traffic rules in residential areas. Mastering road sign meaning is vital for your theory test revision and safe driving.
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 674.
"Entrance to a 20 mph (32 km/h) per hour speed limit zone" 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 674 - Entrance to a 20 mph (32 km/h) per hour speed limit zone 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.
This sign (code 674) means that as soon as you pass it, the maximum speed limit for all vehicles on that road becomes 20 mph (approximately 32 km/h). You must not exceed this speed.
No, the sign indicates the maximum legal speed is 20 mph. You should adjust your speed *before* reaching the sign, slowing down progressively. You must drive at a speed that is safe for the current conditions, which might be less than 20 mph, especially in adverse weather, heavy traffic, or poor visibility.
A common trap is thinking the posted speed is a target. Learners sometimes accelerate when they see the sign or assume they must drive at exactly that speed. It's vital to remember that the number is a maximum, and conditions always dictate the *safe* speed, which could be lower.
Look out for a sign indicating the end of the speed limit zone. This is usually a rectangular sign with '20' inside a red circle, crossed by a single diagonal bar. Without such a sign, the 20 mph limit will apply until you reach a different speed limit sign or leave the restricted area.
Yes, you can drive slower than 20 mph as long as it is safe to do so. You should only drive below the signed minimum speed limit if there is a valid safety reason, but for a maximum speed limit, driving below it is perfectly acceptable and often advisable if conditions require it.
A clear reference image of the 674 - Entrance to a 20 mph (32 km/h) per hour speed limit zone road sign used in Great Britain.

The 674 - Entrance to a 20 mph (32 km/h) per hour speed limit zone road sign may also be known by these alternative names or terms.
The 674 - Entrance to a 20 mph (32 km/h) per hour speed limit zone road sign is part of the Great Britain Speed Limit Signs category, which groups together signs with similar rules and functions.
Mastering traffic signs involves more than just identifying them; comparing similar road signs helps cement their meanings in your memory, crucial for passing your theory test. Understanding the nuances between related signs enhances sign recognition and supports effective theory test revision.

Understand the 20 mph Maximum Speed Limit Road Sign

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

You've reached the end of the 30 mph minimum speed limit.
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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 670V20.
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 675.
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