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A Study on the Application of Measures of Travel Time Variability by Analysis of Travel Time Distribution According to Weather Factor
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 Title & Authors
A Study on the Application of Measures of Travel Time Variability by Analysis of Travel Time Distribution According to Weather Factor
Kim, Jun-Won; Kim, Young-Chan;
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 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;
 Language
Korean
 Cited by
 References
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