UK Roads Speed Limits Explained

While it’s important to be familiar with speed limits for different types of roads, judging the limit on an unfamiliar road can be tricky.

The easiest way to determine the speed limit is to look for signs that display a number inside a red circle, as these signs show the maximum speed you are allowed to drive.

Less commonly, you might see minimum speed limit signs, shown as a blue circle with a white number. These are often placed in tunnels, where slow-moving or stationary vehicles can disrupt traffic flow and increase pollution.

General Speed Limits

Speed limits vary depending on the type of road you’re on. Here’s what to expect:

1. Built-up areas usually have a 30 mph speed limit unless signs tell you something different. This is because there are more hazards, like pedestrians, cyclists, and children. It’s important to stay alert and drive carefully in these areas.
2. Single carriageways, which are roads without any physical barrier between lanes, have a maximum speed limit of 60 mph unless signs show a different limit.
3. Dual carriageways have a central barrier that separates lanes, and the speed limit is generally up to 70 mph unless signs say otherwise.
4. Motorways, which are made for fast and long-distance travel, also have a standard speed limit of 70 mph unless specific signs show a lower limit.

What Does “National Speed Limit Applies” Mean?

If you see a sign with a white circle and a black diagonal line, it shows that the national speed limit applies. This means:

1. 60 mph on single carriageways.
2. 70 mph on dual carriageways and motorways.

Key Speed Limit Rules to Remember

1. Street-lit roads are automatically 30 mph zones, unless a sign specifies otherwise.
2. Higher speeds mean longer stopping distances. If you’re driving fast, leave enough space between you and the vehicle ahead to allow for safe stopping.
3. Speed limits may change depending on the vehicle you’re driving. For example, towing a trailer or driving a motorhome over 3.0 tonnes may impose different limits.

What Happens If You Speed?

Speeding is a serious offence that can result in fines, penalty points, or even losing your license. If you are caught speeding:

1. You will receive a £100 fine and 3 penalty points.
2. More severe offences can lead to disqualification from driving.
3. You may be offered a speed awareness course, allowing you to avoid penalty points—but you will still need to pay the fine. This course focuses on why people speed and how to prevent it.

New drivers need to be extra cautious. Under the New Drivers Act, getting 6 or more penalty points within two years of passing your test will result in your license being revoked.

Why Speed Limits Matter

Having an understanding of speed limits helps make your driving experience safer and smoother. They play a key role in both your theory and practical driving test.

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