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http://dx.doi.org/10.7470/jkst.2015.33.3.315

A City Path Travel Time Estimation Method Using ATMS Travel Time and Pattern Data  

KIM, Sang Bum (Department of Civil Engineering, JeonJu University)
KIM, Chil Hyun (Department of Civil Engineering, JeonJu University)
YOO, Byung Young (Department of Civil Engineering, JeonJu University)
KWON, Yong Seok (Department of Civil Engineering, JeonJu University)
Publication Information
Journal of Korean Society of Transportation / v.33, no.3, 2015 , pp. 315-321 More about this Journal
Abstract
ATMS calculates section travel time using two-way communication system called DSRC(Dedicated Short Range Communications) which collects data of RSE (Road Side Equipment) and Hi-pass OBU (On-board Unit). Travel time estimation in urban area involves uncertainty due to the interrupted flow. This study not only analyzed real-time data but also considered pattern data. Baek-Je-Ro street in Jeon-Ju city was selected as a test site. Existing algorithm was utilized for data filtering and pattern data building. Analysis results repoted that travel time estimation with 20% of real-time data and 80% of pattern data mixture gave minimum average difference of 37.5 seconds compare to the real travel time at the 5% significant level. Results of this study recommend usage of intermixture between real time data and pattern data to minimize error for travel time estimation in urban area.
Keywords
a city path travel time; ATMS; DSRC travel time; travel time estimation; travel time in CBT;
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Times Cited By KSCI : 3  (Citation Analysis)
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