Space-time and integral measures of individual accessibility: a comparative analysis using a point-based framework
TLDR
In this paper, the authors compare the relationship and spatial patterns of these thirty accessibility measures using network-based GIS procedures and conclude that space-time and integral indices are distinctive types of accessibility measures which reflect different dimensions of the accessibility experience of individuals.Abstract:
Conventional integral measures of accessibility, although valuable as indicators of place accessibility, have several limitations when used to evaluate individual accessibility. Two alternatives for overcoming some of the difficulties involved are explored in this study. One is to adapt these measures for evaluating individual accessibility using a disaggregate, nonzonal approach. The other is to develop different types of measures based on an alternative conceptual framework. To pursue the former alternative, this study specifies and examines eighteen gravity-type and cumulative-opportunity accessibility measures using a point-based spatial framework. For the latter option, twelve space-time accessibility measures are developed based on the construct of a prism-constrained feasible opportunity set. This paper compares the relationships and spatial patterns of these thirty measures using network-based GIS procedures. Travel diary data collected in Columbus, Ohio, and a digital data set of 10,727 selected land parcels are used for all computation. Results of this study indicate that space-time and integral indices are distinctive types of accessibility measures which reflect different dimensions of the accessibility experience of individuals. Since space-time measures are more capable of capturing interpersonal differences, especially the effect of space-time constraints, they are more “gender sensitive” and helpful for unraveling gender/ethnic differences in accessibility. An important methodological implication is that whether accessibility is observed to be important or different between individuals depends heavily on whether the measure used is capable of revealing the kind of differences the analyst intends to observe.read more
Citations
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Spatial access to in-patient health care in northern rural India
Vikram Ranga,Pradeep Panda +1 more
TL;DR: It was found that Vaishali district has the highest spatial access to in-patient health care followed by Pratapgarh and Kanpur Dehat, and the most important factor affecting spatial access was found to be the distance to the nearest major urban agglomeration.
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Access to urban parks: Comparing spatial accessibility measures using three GIS-based approaches
TL;DR: The results suggest that among all measures under the three GIS-based approaches, the selection of distance thresholds and transport modes matter more to accessibility measures than the destination choices.
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Synthesizing spatial interaction data for social science research: Validation and an investigation of spatial mismatch in Wichita, Kansas
TL;DR: It is found that low-income Whites travel longer distances and have more dispersed travel patterns than all African-American and Asian income groups and that both low- and middle-income groups of all race groups have spatially constrained flows.
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Space–time measures of demand for service: bridging location modelling and accessibility studies through a time‐geographic framework
Fang Ren,Daoqin Tong,Mei Po Kwan +2 more
TL;DR: In this article, the authors evaluate demand for service in location modelling based on the spatial proximity of fixed and static reference locations of demand (e.g. home) to a facility, which ignores person-specific requirements.
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Do firms flee traffic congestion
TL;DR: The authors explored individual firm location responses to traffic congestion within the Philadelphia metropolitan area between 2003 and 2007 and found that firms appear to relocate out of areas with high regionally-scaled congestion, while areas with a high local congestion are associated with a lower likelihood of relocating.
References
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How Accessibility Shapes Land Use
TL;DR: In this article, an empirical analysis of the residential development patterns illustrates that accessibility and the availability of vacant developable land can be used as the basis of a residential land use model.
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Measuring accessibility: an exploration of issues and alternatives
Susan L Handy,Debbie A. Niemeier +1 more
TL;DR: In this article, the authors provide a framework for the development of accessibility measures and two case studies suggestive of the range of possible approaches are presented, as well as issues that planners must address in developing an accessibility measure.
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The, Market as a Factor in the Localization of Industry in the United States
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Defining and Estimating a Trading Area
TL;DR: The conceptual properties of a trading area are defined and testable propositions are currently available to validate its properties and thus give precision to the definition.