Hackney LBC has announced plans to roll out 20mph restrictions across its main road network later this year in a bid to reduce casualties by 10%.
Pending a statutory consultation from 9 March, the move could bring almost all roads in the borough under a 20mph limit.
Hackney has had 20mph restrictions across its residential roads since 2008 resulting in a 50% reduction in casualties in some areas.
The new speed limits would apply to all main roads except Ruckholt Road or any of Transport for London's red routes, which constitute 8.5% of the borough's overall road network.
Police will carry out enforcement of the limit and signage and road markings will be put in place to help alert motorists.
Cllr Feryal Demirci, Hackney’s cabinet member for neighbourhoods, said: ‘The new 20mph speed limit will mean a better borough for all. As London's top walking and cycling borough this roll out makes sense. Lower speeds will see a calmer and safer environment, and we hope to have more walking and playing outside, which in turn will have a positive impact on health and the community.
‘Speed limits and 20mph zones have already cut casualties on our residential streets but we can always do more to prevent accidents and improve the quality of life for our residents. We hope by extending this we can reduce casualties by a further 10%.
‘We are asking all motorists to respect the new lower speed limit when it comes in to force and will be working closely with the police to enforce where cars don’t adhere to the speed limit.’