- Sarah Ingamells, foundation doctor1,
- Angela Raffle, consultant in public health—wider determinants of health1
- 1NHS Bristol, Bristol BS1 3NX, UK
Your article implied that new evidence has emerged against 20 mph (32 km/h) limits.1 Nothing is further from the truth.
• Detailed analysis of 20 years of data showed a 41.9% reduction in road casualties in 20 mph zones2
• The limit’s key aim is to encourage more considerate driving; this should increase walking and cycling and …