* Facts about traffic speeds and benefits of low speed streets

Reducing traffic speed limits from 30mph to 20mph typically results in more than 20% fewer casualties.            https://www.20splenty.org/20mph_casualty_reduction

‘Speed takes a profound toll on our lives. Higher city speeds increase road deaths and injuries, air pollution, physical inactivity, infrastructure costs, energy demands and climate emergency impacts.’            https://theconversation.com/slaves-to-speed-wed-all-benefit-from-slow-cities-152756