Place-Based Versus People-Based Accessibility

Abstract

This paper argues that traditional place-based measures of accessibility should be enhanced and complemented with people-based measures that are more sensitive to individual activity patterns and accessibility in space and time. The next section of the paper reviews place-based measures, including major methods and implementation issues. The following section highlights the relationships between new technologies and accessibility, both with respect to the impacts of transportation and information and communication technologies (ICTs) on activity participation and accessibility as well as the capability for collecting and analyzing fine-grained spatio-temporal data that can support people-based approaches. The fourth section of the paper discusses people-based accessibility; this includes time geography as the major theoretical framework, as well as existing and evolving approaches to people-based accessibility that use time geography and geospatial technologies as a basis and the final section concludes with some brief comments.

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