Fig. 3From: A natural experimental study of improvements along an urban canal: impact on canal usage, physical activity and other wellbeing behavioursOverview of the five-step matching process used to identify comparison sites. Numbers in brackets refer to the key variables used for matching. References for the environmental audit tools: Cain et al. [35] and Gidlow et al. [36]. Based on a similar graphic originally published in Benton et al. [37]Back to article page