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http://dx.doi.org/10.7470/jkst.2013.31.2.045

An Empirical Study on Comparative Analysis of Freight Demand Estimation Methods - Unimodal O/D Based Method and P/C Based Method : Focus on Korean Import/Export Container Freight  

Kim, Hyunseung (Department of Transportation, University of Seoul)
Park, Dongjoo (Department of Transportation, University of Seoul)
Kim, Chansung (Center for Korea Transport Database, Department of National Transport Survey and Analysis, The Korea Transport Institute)
Choi, Chang Ho (Department of Business and Commerce, Chonnam National University)
Cho, Hanseon (Dept. of Transport Safety and Highway, The Korea Transport Institute)
Publication Information
Journal of Korean Society of Transportation / v.31, no.2, 2013 , pp. 45-59 More about this Journal
Abstract
This study deals with the comparative analysis between two freight demand estimation methods : Unimodal O/D based method and P/C based method. The data of access/egress truck trips has been omitted from the Korean freight unimodal O/D of KTDB. This is because KTDB's unimodal O/D has not marked the series of unlinked trips down as the whole freight intermodal transport and surveyed only the main-haul trips of them. For these reasons, freight intermodal transport mechanism has not been analysed perfectly with Korean unimodal O/D data. This study tries to estimate P/C table of Korean Import/Export container freight and develop the MCC(Multimodal Channel Choice) model. Then, comparing unimodal O/D based method and P/C based method in terms of the switch commodities between production point(the initial point of freight transport) and consumption point(the terminal point of freight transport), unimodal commodities, and commodities on links is conducted. The results show that the P/C based method is able to simulate the freight intermodal transport.
Keywords
Access/Egress Truck Trip; MCC(Multimodal Channel Choice) Model; P/C Based Method; Supply Chain; Unimodal O/D Based Method;
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Times Cited By KSCI : 3  (Citation Analysis)
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