- Reference: 2016/3664
- Question by: Caroline Russell
- Meeting date: 19 October 2016
According to new research from Kings College 'Did policies to abate atmospheric emissions from traffic have a positive effect in London?', braking at 20mph produces half the particulate matter from tyres, brakes and the road compared to braking at 30mph. Given there is no safe exposure level to PM2.5 particles, should Transport for London (TfL) factor these findings into their decision-making processes around a) whether to implement new 20mph limits on the TfL road network and b) where to locate them?