Paper Info
Title
Space-time accessibility measures: A geocomputational algorithm with a focus on the feasible opportunity set and possible activity duration
Abstract
.   Space-time accessibility measures have received much attention in recent years due to their sensitivity to differences in individual ability to participate in activities in space and time. Despite the conceptual attractiveness and robustness of space-time measures, only few attempts have been made to operationalize them to date. Research that seeks to improve space-time accessibility measures is still sorely needed. This study seeks to enhance space-time accessibility measures through developing a new operational method and GIS-based algorithm that better represents the space-time characteristics of urban opportunities (e.g. their geographical distribution and opening hours) and human activity-travel behavior (e.g. delay times, minimum activity participation time, and maximum travel time threshold). The proposed method not only takes into account the number and size of opportunities, but also the possible activity duration at each activity location given its opening hours and the effect of transport network topology (e.g. one-way streets, turn restrictions and over-pass). Incorporating these elements into space-time measures helps overcome several shortcomings of previous approaches to evaluating space-time accessibility.
Year
DOI
Venue
2003
10.1007/s101090300104
Journal of Geographical Systems
Keywords
Field
DocType
Key words: Individual accessibility,space-time accessibility measures,space-time constraint,space-time prism,GIS,JEL classification: C60,R40
Space time,Geographic information system,Population,Algorithm,Robustness (computer science),Attractiveness,Economic data,Operationalization,Geography,Transport network
Journal
Volume
Issue
Citations 
5
1
21
PageRank 
References 
Authors
2.05
2
2
Name
Order
Citations
PageRank
Hyun-mi Kim1243.44
Mei-Po Kwan233645.13