It's not surprising that reducing speeds improves safety. It is surprising--and encouraging--that a major city was able to effectively reduce speeds on so many of its main roads!
#London #SpeedKills #VisionZero #safestreetsforall
https://www.intelligenttransport.com/transport-news/143786/tfl-data-shows-20mph-speed-limits-significantly-reduce-collisions-london/