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http://dx.doi.org/10.12815/kits.2020.19.6.14

Rationality of Passengers' Route Choice Considering Smart Card Tag Constraints : Focused on Seoul Metropolitan Subway Network  

Lee, Mee Young (National Economic Advisory Council)
Nam, Doohee (School. of Social Science, Hansung University)
Shim, Dae Young (Catholic Kwandong University)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.19, no.6, 2020 , pp. 14-25 More about this Journal
Abstract
This research proposes a methodology to evaluate the rationality of passengers' route choice who make trips within Seoul metropolitan subway based on smart card data. The rationality of user route choice is divided into the degree of determinacy and similarity concepts as basic principle. Determinacy is the degree to which the route selected by the passenger is identical to the system optimal path. Similarity indicates the degree to which the route is similar to the system optimal path. The K-path search method is used for path enumeration, which allows for measurement of determinacy. To assess determinacy within similarity, transfer tag data of private operators is used. Consequently, the concept of similarity applied to the model is such that the passenger's path choice is identical to the path taken using the tag reader. Results show that the determinacy of appearance of the shortest path (K=1) is 90.4%, while the similarity of appearance as K=(2-10) is 7.9%, summing to 98.3%. This indicates that trips on the metropolitan subway network are being rationally explained. 1.7% of irrational trips are attributed to the unexplainable error term that occurs due to the diversity of passengers.
Keywords
Rational Route Choice; Degree of Determinacy; Degree of Similarity; Smart Card; Transfer Tag Constraint;
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Times Cited By KSCI : 4  (Citation Analysis)
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