Swindon 1981.

Methods	CBA 4 yrs before data. 2 yrs after data.
Participants	I) 2.8 KM section of an all purpose arterial road in Swindon, UK C) Three routes of similar layout, frontage development and radial function. The local council agreed to keep road works to a minimum in this area.
Interventions	I) A number of traffic calming measures including roundabouts, pedestrian crossings and changes to intersections. C) No changes.
Outcomes	Road traffic crash related injuries.
Notes	Behaviour of the control routes was atypical of other types of road in Swindon during the study period. No information given on perceived safety or quality of environment.