A utility-based travel impedance measure for public transit network accessibility

Nassir, Neema, Hickman, Mark, Malekzadeh, Ali and Irannezhad, Elnaz (2016) A utility-based travel impedance measure for public transit network accessibility. Transportation Research Part A: Policy and Practice, 88 26-39. doi:10.1016/j.tra.2016.03.007

Author Nassir, Neema
Hickman, Mark
Malekzadeh, Ali
Irannezhad, Elnaz
Title A utility-based travel impedance measure for public transit network accessibility
Journal name Transportation Research Part A: Policy and Practice   Check publisher's open access policy
ISSN 0965-8564
Publication date 2016-06-01
Year available 2016
Sub-type Article (original research)
DOI 10.1016/j.tra.2016.03.007
Open Access Status Not Open Access
Volume 88
Start page 26
End page 39
Total pages 14
Place of publication Kidlington, Oxford United Kingdom
Publisher Pergamon Press
Collection year 2017
Language eng
Formatted abstract
A utility-based travel impedance measure is developed for public transit modes that is capable of capturing the passengers’ behaviour and their subjective perceptions of impedance when travelling in the transit networks. The proposed measure is time-dependent and it estimates the realisation of the travel impedance by the community of passengers for travelling between an origin–destination (OD) pair.

The main advantage of the developed measure, as compared to the existing transit impedance measures, relates to its capability in capturing the diversity benefit that the transit systems may offer the society of travellers with different traveling preferences. To clarify the necessity of such capability, we demonstrate the randomness (subjectivity) of travel impedance perceived by transit passengers, through evidence from the observed path choices made in the transit network of the greater Brisbane metropolitan region in Australia.

The proposed impedance measure is basically a nested logit “logsum” composition over a generated set of reasonable path options whose systematic utilities are evaluated based on a discrete choice model previously developed and calibrated for the greater Brisbane transit passengers. As a case study, the proposed impedance measure is calculated for all the origin blocks in the Brisbane area, during the morning commutes to the Central Business District (CBD). The results are presented and discussed, and intuitive and important advantages are demonstrated for the proposed measure.
Keyword Transit network accessibility
Transit impedance
Logit logsum
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
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Created: Tue, 26 Apr 2016, 00:18:07 EST by System User on behalf of School of Chemical Engineering