The ABD has been lucky enough to recently engage the services of qualified statistician, Stylianos Kampakis CStat, to research the topic of London wide-area 20mph limits, & their effectiveness in road safety terms.
Read his full report below, or download a presentation covering the key points.
Evidence Over Ideology: A Quantitative Assessment of LTNs and Blanket 20 mph Regimes
[PDF]
The Wrong Road Problem
[Download a Powerpoint / Keynote Presentation]
