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If two or more speed limits apply, the lower or lowest limit must be observed
The speed you can drive is limited by the type of road being used and the type of vehicle being driven.
If two or more speed limits apply, the lower or lowest limit must be observed.
Speed limits do not apply to a vehicle being used for fire brigade, ambulance or police purposes if keeping to the limit would hinder its efficiency while responding to an emergency.
No other vehicle is exempt.
A single carriageway is where traffic flows in either direction on an undivided road (often with a centre white line marking). The road may have one or more lanes in either direction. It may be subject to any speed limit up to the national speed limit.
A dual carriageway is a road consisting of two parts, separated by a central reservation, each part of the road being used by traffic travelling in one direction only. It may be subject to any speed limit up to the national speed limit.
Mandatory speed limit
Mandatory speed limit signs are circular. The sign for a maximum speed limit shows black numerals on a white background with a red border.
On a Class A or Class B road in Scotland with appropriate street lighting, a 30mph sign is required to indicate the point at which it becomes a restricted road.
Minimum speed limit
This sign indicates a minimum speed limit which is mandatory. At the start, the sign has white numerals on a blue background and at the finish there is a similar sign crossed through with a red diagonal line.
This sign indicates that the National Speed Limit applies:
60mph on a single carriageway
70mph on a dual carriageway
National speed limit
You would expect to see this sign at the point where a lower limit ends. Remember that a lower limit than the National Speed Limit might still apply to you because of your vehicle or because you are drawing a trailer.
The maximum speed limit on motorways is 70mph unless signs indicate otherwise. On some motorways, variable speed limits operate. The signs indicating these are mandatory speed limit signs but produced by lamps. When not in use they show a blank grey or black face.
Local authorities can set their own limits to address specific local needs – 20mph zones are increasingly being applied in built up areas or around a school. Signs must be clear.
Speeding offences are enforced by the police using fixed, mobile or average speed cameras and are generally dealt with using the Fixed Penalty Notice system.
The minimum penalty for speeding is generally a £60 fine and three points on your licence though in some areas at the discretion of the police and for more minor speeding offences only you might be given the opportunity to attend a speed awareness course
You will not be able to attend a course if you have already done so anywhere else in the country within three years.
The course will cost you more than the original fixed penalty but if you complete it you will not have three penalty points endorsed on your licence.
Mandatory signs must, with certain exceptions, be placed on both sides of the carriageway at the point where a speed limit begins.
(6 July 2012)