Browse > Article
http://dx.doi.org/10.12815/kits.2015.14.6.001

A Study on the Application of Measures of Travel Time Variability by Analysis of Travel Time Distribution According to Weather Factor  

Kim, Jun-Won (University of Seoul)
Kim, Young-Chan (University of Seoul)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.14, no.6, 2015 , pp. 1-13 More about this Journal
Abstract
Travellers consider extra travel time to be arriving their destination because of uncertainty of travel. So it is important to make predictable highway by providing information of travel time variability to traveller so as to enhance level of service at highway. In order to make predictable highway, it is necessary to develope measures of travel time variability that travellers can easily understand. Recently advanced country including the United States, travel time variability index are actively studied. In earlier study, 95percentile of travel time is considered to be most important calculation index of travel time variability. In this study, is has focused on the propriety analysis of 95percentile of travel time in domestic transportation environment. Result of analysis, All of measures(80percentile of travel time, 90percentile of travel time, 95percentile of travel time) show the tendency to increase when case of weather factor occur compare to normal condition under LOS A~D. Especially 95percentile of travel time increased sensitively.
Keywords
Variability; Reliability; Punctuality; Travel time; Measures;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Korea Transport Institute, "Study on A Methodology for the Reliability Benefit Measurement in feasibility Investigation of Railroad Project," 2008.
2 Texas Transportation Institute, "Selecting Travel Reliability Measure," 2003.
3 SHRP2 Reliability Archive System, http://shrp2archive.org.
4 SHRP2 L03, "Analytical Procedures for Determining the Impacts of Reliability Mitigation Strategies," 2013.
5 SHRP2 L05, "Incorporating Reliability Performance Measures into the Transportation Planning and Programming Processes," 2013.
6 Ministry of Land, Infrastructure and Transport, "Highway Capacity Manual," 2013.
7 Korea Expressway Corporation, Open-OASIS, http://data.ex.co.kr.
8 FWWA, "Traffic congestion and reliability : Trends and advanced strategies for congestion mitigation", 2005.
9 Korea Meteorological Administration, National Climate Data Service System, http://sts.kma.go.kr.
10 Department of Transportation, "Reliability of Journeys on the Highways Agency's Motorway and A Road: The on Time Reliability Measure Methodology," 2013.