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http://dx.doi.org/10.12815/kits.2019.18.6.262

Rate of Probe Vehicles for the Collection of Traffic Information on Expressways  

Kim, Jiwon (Dept. of Transportation Eng., Ajou University)
Jeong, Harim (Dept. of Transportation System Eng., Ajou University)
Kang, Sungkwan (Construction Div. Korea Expressway Corporation)
Yun, Ilsoo (Dept. of Transportation System Eng., Ajou University)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.18, no.6, 2019 , pp. 262-274 More about this Journal
Abstract
The purpose of this study is to estimate the minimum proportion of probe vehicles for obtaining expressway traffic information using VISSIM, a micro traffic simulation model, between Yongin IC and Yangji IC on Yeongdong Expressway. 7,200 scenarios were created for the experiment, and 40 scenarios were adopted using the Latin hypercube sampling method because it was difficult to perform all the scenarios through experiments. The reliability of the experiment was improved by adding a situation when the general situation and the accident situation exist. In the experiments, the average travel time of probe vehicles at different market penetration rates were compared with the average travel time of the entire vehicles. As a result, the minimum market penetration rate of probe vehicles for obtaining expressway traffic information was found to be 45%. In addition, it is estimated that 25% market penetration rate of probe vehicle can meet 70% of traffic situations in accident scenario.
Keywords
Cooperative Intelligent transport systems; Traffic information; Probe vehicle; VISSIM; Latin-hypercube sampling;
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Times Cited By KSCI : 2  (Citation Analysis)
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