--- title: "20mph Zone Sign Meaning | UK Road Signs | Fast Track" url: https://fasttrackdrivinglessons.co.uk/theory/road-signs/twenty-mph-zone description: "Learn what a 20mph zone sign means, how it differs from a standard speed limit sign, and how it is tested for the theory test." lang: en --- # 20mph zone — UK road sign A circular sign marking the start of a zone where traffic calming measures support a lower 20mph speed limit. Image: 20mph zone — red, white and black circle UK road sign (https://fasttrackdrivinglessons.co.uk/signs/twenty-mph-zone.svg) 20mph zones are areas, often residential, where the speed limit is reduced and reinforced with physical traffic calming measures. The zone sign marks the start of this area and applies until a matching end of zone sign is reached. ## What this sign means The sign shows a white circle with a red border and the number 20 inside, with the word zone underneath, distinguishing it from a normal speed limit sign. Unlike a standard repeater limit, a zone sign means the limit applies throughout the area until you see the end of zone sign, without needing repeaters at every junction. ## What to do when you see it Reduce your speed to 20mph or below immediately and expect traffic calming features throughout the zone. - Slow to 20mph as soon as you pass the sign - Expect humps, narrowings or chicanes within the zone - Stay alert for pedestrians, especially near schools - Maintain the reduced speed until you see the end of zone sign ## How this sign is tested The theory test may ask you to distinguish a 20mph zone sign from a standard 20mph speed limit sign. You may also be tested on how long the limit applies within a zone. ## Common mistakes Some drivers confuse a zone sign with a single speed limit sign and assume it only applies briefly. Speeding up again after passing the first traffic calming feature, before reaching the end of zone sign, is another mistake. ## Test yourself on this one Road and traffic signs is the biggest category in the question bank with 102 questions, and signs turn up inside other categories too. Work through them free, no sign-up needed. Practise road sign questions (https://fasttrackdrivinglessons.co.uk/theory/practice) ## Frequently asked questions How is a 20mph zone different from a 20mph limit A zone applies throughout an area with traffic calming until an end of zone sign, while a limit sign applies to a specific stretch of road. Do I need to see repeater signs in a zone No, entry and exit signs are usually enough because the limit is reinforced by physical measures throughout the zone. Where are 20mph zones commonly found Residential streets, near schools and in areas with high pedestrian and cyclist activity. ## Passed your theory? Get the practical booked Your theory certificate lasts two years. Most learners who use it quickly do it with an intensive course — a block of hours with a DVSA approved instructor and a practical test at the end, instead of one lesson a week for months. 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