Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Exploration on origin-destination-based travel time variability: Insights from Seoul metropolitan area

Authors
Kim Sung HooChung Jin-Hyuk
Issue Date
Jun-2018
Publisher
Pergamon Press Ltd.
Keywords
Origin-destination-based analysis; Travel time distribution; Travel time variability; Urban mobility; Web information
Citation
Journal of Transport Geography, v.70, pp.104 - 113
Indexed
SSCI
SCOPUS
Journal Title
Journal of Transport Geography
Volume
70
Start Page
104
End Page
113
URI
https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/111098
DOI
10.1016/j.jtrangeo.2018.05.021
ISSN
0966-6923
Abstract
Travel time variability can be defined as the variation in travel time over a certain time period. This study focuses on O/D-based analysis, which has been rarely studied due to the limited data in the context of travel time variability. The objectives of the study are twofold: to shed light on the O/D-based travel time variability and to get insights on travel time variability in the context of Seoul Metropolitan Area. This study utilizes the web information to obtain real-time estimated travel time data, and employs a Gaussian mixture model (GMM) to model the travel time distributions. The GMM parameters are found to be useful to fit travel time distribution, which exhibits skewness and multimodality, to identify underlying travel time states and to explain variability. The results indicate that O/D-based travel time variability can be characterized and that higher variability occurs during peak hours. In general, the selected O/D pairs are found to have four travel time states but exhibit different patterns. The existence of alternative paths seem to reduce travel time variability at the O/D level. The results suggest directions for future research and implementation of policies.
Files in This Item
Go to Link
Appears in
Collections
COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF TRANSPORTATION AND LOGISTICS ENGINEERING > 1. Journal Articles

qrcode

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

Related Researcher

Researcher Kim, Sung Hoo photo

Kim, Sung Hoo
ERICA 공학대학 (DEPARTMENT OF TRANSPORTATION AND LOGISTICS ENGINEERING)
Read more

Altmetrics

Total Views & Downloads

BROWSE