Measuring Nonmotorized Accessibility and Connectivity in a Robust Pedestrian Network

Gil Tal · Susan Handy

120 citations0/0 files storedTransportation Research Record Journal of the Transportation Research Board

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Urban Transport and Accessibility Transportation Planning and Optimization Urban Design and Spatial Analysis

Abstract

This paper explores measures of pedestrian accessibility and network connectivity with a network that includes pedestrian facilities in addition to the street network. Studies that focus on walkability usually use available street networks that do not include pedestrian-only facilities. The effect of missing pedestrian connections where the street network is richer than the pedestrian network has been examined in some studies, but the case of suburban environments with robust pedestrian networks has mostly been ignored. In the current study, various measures of connectivity and accessibility were compared between the pedestrian network and the street network in different suburban settings and for accessibility to different land use activities, such as schools and retail centers. Documenting the degree to which the pedestrian network enhanced pedestrian accessibility over the street network alone was motivated by the desire to inform research and to inform policy. Nine neighborhoods in the city of Davis, California, with typical suburban densities, a variety of street network types, and an extensive system of off-street bicycle and pedestrian facilities were used in the study. A network that included all minor and primary roads in the city plus pedestrian ways was also used. This network included 60 mi of off-street facilities and excluded freeways not open to pedestrians. Households were used as origins and schools and retail centers as destinations to demonstrate the effect of the pedestrian network on connectivity and accessibility in different parts of the city. The results of this study can be used to improve the measurement of built environment in studies of active travel and to increase understanding of the effect of the pedestrian network in the suburban environment.

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References

1997Travel demand and the 3Ds: Density, diversity, and design 1959How Accessibility Shapes Land Use 2006Many Pathways from Land Use to Health: Associations between Neighborhood Walkability and Active Transportation, Body Mass Index, and Air Quality 2003Social Capital and the Built Environment: The Importance of Walkable Neighborhoods 2006Neighborhood Environment Walkability Scale 1998Can Land-use Policy Really Affect Travel Behaviour? A Study of the Link between Non-work Travel and Land-use Characteristics 1996Travel choices in pedestrian versus automobile oriented neighborhoods 2001The influence of land use on travel behavior: specification and estimation strategies

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