The World Health Organisation’s (WHO) new Pedestrian Safety report endorses area-wide lower speed limits.  It is top level, conclusive proof that signed 20mph limits are effective.  

Public Health England’s Chief Exec Designate, Duncan Selbie, has used 20mph limits as an example for Public Health Directors of how they can provide visible, accessible and practical evidence to local authorities to benefit community health and “reduce child accidents and deaths by an important margin” . Liverpool and Bristol’s PCT’s have given funding or expertise towards implementing community wide 20mph limits. Health improves and people are better protected in 20mph areas.

Many people assume that at lower speeds extra fuel is used and more pollution created. In fact the reverse is true. That’s why "Total 20"[1], without traffic calming, is supported by so many environmental organisations.