GIS Software for Measuring Space-Time Accessibility in Transportation Planning and Analysis

Authors:
Harvey J. Miller;Yi-Hwa Wu
Affiliations:
Department of Geography, University of Utah, 260 S. Central Campus Dr. Rm 270, Salt Lake City, UT 84112-9155 USA harvey.miller@geog.utah.edu;Digitally Integrated Geographic Information Technologies (DIGIT) Laboratory, University of Utah, 260 S. Central Campus Dr. Rm 270, Salt Lake City, UT 84112-9155 USA wu.yi-hwa@geog.utah.edu
Venue:
Geoinformatica
Year:
2000

Citing 0
Cited 6

Space-time opportunities for multiple agents: a constraint-based approach

International Journal of Geographical Information Science
Exploring potential human activities in physical and virtual spaces: a spatio-temporal GIS approach

International Journal of Geographical Information Science
Analyzing Trajectories Using Uncertainty and Background Information

SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
Using Multi-agent Geo-simulation Techniques for the Detection of Risky Areas for Trains

Simulation
Evolutionary search for understanding movement dynamics on mixed networks

Geoinformatica
A link-focused methodology for evaluating accessibility to emergency services

Decision Support Systems

Quantified Score

Hi-index	0.00

Visualization

Abstract

Transportation systems exist to improve individual accessibility. However, emerging applications of GIS in transportation (GIS-T) and intelligent transportation system (ITS) focus on throughput (the amount of system flow) rather than accessibility. Throughput is related but not equivalent to accessibility. Sensitive transportation planning requires rigorous, realistic and tractable accessibility measures. This paper reports on the development of GIS software that implement space-time accessibility measures (STAMs). The STAMs reflect the benefits that individuals receive from the transportation system. They are easily interpreted, particularly with respect to changes in accessibility. The STAMs also consider the locations and travel velocities dictated by the transportation system as well as individuals’ daily activity schedules. Tractable computational procedures allow calculation of the STAMs for detailed, urban-scale transportation networks. A prototype ArcInfo^®-linked software system that runs on Windows NT^® or Sun Solaris^® platform implements the STAMs with user-friendly interfaces and project management tools.