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Mandatory speed limiters on UK cars from 2022

All new vehicles sold in Europe – including the UK – will be fitted with a mandatory speed limiter from 2022 to keep cars within the UK speed limits and boost road safety.

  • From 6 July 2022, all newly launched cars will legally have to be fitted with a speed limiter
  • European Commission reached a provisional agreement in 2019
  • The UK is likely to adopt the new speed limiting rules, even after Brexit
The European Commission has reached a provisional agreement that all new vehicles sold in Europe will be fitted with a speed limiter as a legal requirement from 6 July 2022. The 2019/2044 regulation also mandates all new cars that have already launched be fitted with an Intelligent Speed Assist (ISA) by 7 July 2024.
While it hasn’t been decided, the UK will likely obey the new road safety regulations despite leaving the EU as even after Brexit, the UK has retained most EU laws for new cars. Following this agreement also helps in standardising the car manufacturing process for different markets. Using speed limiters successfully would also be a step forward in developing self-driving cars in the UK.

What is a speed limiter?

A speed limiter is a safety device that can be fitted in your car so that your vehicle doesn’t cross a certain speed set by you.
Unlike cruise control, which maintains a consistent speed throughout your journey to eliminate the use of the accelerator, a speed limiter allows you to accelerate and decelerate as you normally would, provided you don’t go above the speed limit you set. Related: How much is a fine for speeding?

How do speed limiters work?

The speed limiter technology, called Intelligent Speed Assistant (ISA) uses GPS data and/or traffic-sign-recognition cameras to determine the maximum speed allowed in an area. The system then limits the engine’s power and the vehicle’s speed to that limit.
You can override the system by pressing hard on the accelerator, but the system will reactivate every time the car is started. However, the speed limiter will send haptic, audio and visual warnings until you start driving within the speed limits. Many manufacturers have already started including factory-fitted ISA in some of their cars such as Citroen, Ford, Honda, Jaguar, Peugeot, Renault and Volvo. Renault Group also confirmed that all upcoming Renault and Citroen cars will have a top speed of 112 mph to increase safety. However, various associations have pointed out that the warning signals can be annoying for the driver. There are also concerns as to whether the current speed restrictor technology is sophisticated and advanced enough to work effectively. Forward-facing cameras with traffic-sign recognition technology are sometimes caught out, especially on motorways, or miss speed changes.

Can you remove a speed limiter?

Currently, the regulation permits you to switch the speed limiter off. Those chasing the thrill of higher top speeds, or looking for better fuel economy may look at modifying their cars by getting the speed limiter removed. However, if you try to exceed your car’s top speed, it can be dangerous and illegal if you cross the legal UK speed limits.
Related: What is a speed awareness course and what to expect

Road traffic accident reduction

It is hoped the use of speed limiters will help to reduce road accidents. The European Transport Safety Council (ETSC) – which has been pushing for the mandatory speed limiters – has said the move will reduce collisions by 30%. The European Commission has said the speed limiters (along with other measures included in the legislation) could prevent 140,000 serious road traffic injuries by 2038. Overall, it hopes to cut road deaths to zero by 2050.
In the UK, the national speed limit for cars is 70 mph on motorways and dual-carriageways, and 60 mph on single carriageways. On built-up areas, the permitted top speed is 30 mph. However, many cars have a top speed of over 70 mph, which makes it important to ensure that drivers adhere to the legal UK speed limits. A report by Gov.uk revealed there were 1,472 fatalities and 22,014 serious injuries reported due to road accidents in 2020.

Other measures included in the legislation

The new provisional EU regulations also include other compulsory safety equipment such as autonomous emergency braking, data loggers (black box technology), emergency stop signal, driver fatigue detection system, lane keep assist, built-in breathalysers which won’t let you start the car if you fail, and reversing sensors or cameras.
Several of these systems are widely available as standard on many cars sold in the UK. An autonomous emergency braking system, for example, is required for a car to score the maximum five stars in the Euro NCAP safety crash tests. Related: The technology making the roads safer
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