Anciaes, PR; Jones, PM; (2016) The effectiveness of changes in street layout and design for reducing barriers to walking. Transportation Research Record: Journal of the Transportation Research Board , 2586 pp. 39-47. 10.3141/2586-05.

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Abstract

This study analyses the effectiveness of two types of interventions to reduce built environment barriers to walking: changing the layout of the local street network (by increasing the density and connectivity of the links available to pedestrians) and redesigning a busy road (by adding crossing facilities, reducing speed limit, or reallocating road space to pedestrians). The analysis focuses on a residential neighbourhood in London which is being extensively redeveloped. The anticipated effects of the interventions are assessed in terms of the distance, delay, safety, and environmental quality of walking trips from residences to public transport nodes. The study also addresses methodological issues, by modelling the off-street space available to pedestrians and considering alternative hypotheses for pedestrian route choice. The results show that changes to the street layout always reduce delay and improve the pedestrian environment, although they may increase trip distances and collision risk. Adding crossing facilities reduces risk but do not decrease delay, while reducing the number of vehicle lanes reduces distance and delay but may increase risk. All types of intervention improve the pedestrian environment, even in the cases of routes chosen to minimize delay or exposure to traffic.

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