“…Built environment attributes fall into two categories [14]: (1) macro built environment attributes, including neighbourhood residential density, land use-mix and route connectivity, which shape the overall design and structure of a neighbourhood; and (2) micro built environment attributes, including safety, pedestrian infrastructure and aesthetics (defined in Table 1), which shape route characteristics in a neighbourhood [14,15]. Most previous studies on walking have focused on macro built environment attributes [16,17,18,19], however, examining micro built environment attributes may also be useful [14]. Micro built environment attributes can be modified at lower cost and more rapidly than macro built environment attributes [14,15,20].…”