Petition Raise Motorway Speed Limits to 100mph and Dual Carriageways to 80mph

Increase Speed Limits on Motorways to 100mph, and 80mph on Dual Carriageways. We think the current speed limit is too restrictive.

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The 70mph speed limit is 58 years old. Some modern vehicles have advanced safety features and faster stopping speeds. Faster travel could enhance reliability of supply chains and logistics. Adaptive cruise control and collision avoidance systems can enhance safety. We believe a speed limit increase will improve traffic flow, reducing congestion.

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Government responded

This response was given on 22 May 2024

The Government has undertaken no recent assessment on increasing national speed limits and we have no current plans to undertake such an assessment on the basis of traffic flow or other factors.

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We recognise that technology is moving on rapidly and that vehicles are much safer than when the current speed limits were first introduced. But it is complex to model whether the economic benefits from reduced journey times would be realised because of the interaction of different factors, including any increase in road safety risk with resulting increase in collisions and travel time delays during closure and clearance of the road, and increased fuel consumption at higher speeds.

Speed limits are set to achieve a balance between a transport system that is an engine for economic growth but one that is also greener and safer and improves the quality of life in our communities.

The safety of road users is our priority, and any change to speed limits would be evidence-led, looking at the impact on safety, air quality and carbon emissions as well as traffic flow and other road conditions.

The ability to set speed limits, including the national limits, in Scotland and Wales has been devolved to the Scottish Government and the Welsh Government. Northern Ireland is responsible for its own road traffic legislation.

Department for Transport

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