Lowering Speed Limits

The Mayor and Transport for London (TfL) is committed to Vision Zero, eliminating death and serious injury from London’s roads. The Vision Zero Action Plan sets out our ambition and next steps to achieve this. It details our plans to reduce road danger, including proposals to implement safer speeds on the roads we operate and manage across London.

What are we doing?

The Vision Zero Action Plan sets out our plans to lower the speed limit by 10mph in selected locations, covering our roads in the central London area and over 140km of our roads across London. We achieved this ahead of schedule, introducing a 20mph speed limit on our roads in the central London Congestion Charging Zone in March 2020 and to date over 180km of TfL roads have had the speed limit reduced by 10mph across selected roads in 24 boroughs and in 36 town centres.

We will soon complete works by August 2024 in Enfield and Waltham Forest, to lower the speed along a section of the A406.

We have lowered the speed limit using sign and line changes. Where there are new 20mph speed limits, we supplement this with temporary lamp column mounted banners.

You can also view our updated maps in the 'Documents' section.

We are committed to improving transport in London by making it safe and reliable. All of our plans have been designed with this in mind. Please view our Equalities Statement in the 'Documents' section for more information.

Why do we want to lower speeds?

Collision data from around the world is very clear. It shows the faster a vehicle is travelling the more likely a collision will occur because the driver has less time to react, stop or avoid the collision and the more severe an injury resulting from the collision will be.

If you would like to know more background information, please read our phase 1 consultation report that can be found in the Documents section.