Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12033
Title: Reliable space-time prisms under travel time uncertainty
Authors: Chen, BY
Li, Q
Wang, D
Shaw, SL
Lam, WHK 
Yuan, H
Fang, Z
Keywords: Reliability
Reliable space-time prism
Time geography
Travel behavior
Travel time uncertainty
Issue Date: 2013
Source: Annals of the Association of American geographers, 2013, v. 103, no. 6, p. 1502-1521 How to cite?
Journal: Annals of the Association of American Geographers 
Abstract: Time geography is a powerful framework for analyzing human activities under various space-time constraints. At the core of time geography is the concept of the space-time prism, which delimits an individual's potential activity locations in space and time. The classical space-time prism, however, admits only deterministic travel speeds and ignores the stochastic nature of travel environments. In this article, the classical space-time prism model is extended to congested road networks with travel time uncertainty. A reliable space-time prism is proposed to consider explicitly an individual's on-time arrival probability concerns in the face of travel time uncertainty. The reliable space-time prism is defined as the set of space-time locations where an individual can participate in an activity and return to his or her destination with a given on-time arrival probability. To construct such a reliable space-time prism in a road network, a solution algorithm is developed. A case study using real-world traffic information is carried out to demonstrate the applicability of the proposed prism model. The results of the case study indicate that the proposed prism model can represent well individuals' space-time taking into account various on-time arrival probability concerns.
URI: http://hdl.handle.net/10397/12033
ISSN: 0004-5608
DOI: 10.1080/00045608.2013.834236
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

14
Last Week
0
Last month
1
Citations as of Dec 15, 2017

WEB OF SCIENCETM
Citations

12
Last Week
0
Last month
1
Citations as of Dec 12, 2017

Page view(s)

64
Last Week
1
Last month
Checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.