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http://dx.doi.org/10.7470/jkst.2014.32.6.675

Segment-based Differentiated Pricing Strategy for Reducing Congestion of Expressways  

Lee, Eunho (Department of Civil and Environmental Engineering, Seoul National University)
Kim, Dong-Kyu (Department of Civil and Environmental Engineering, Seoul National University)
Kho, Seung-Young (Department of Civil and Environmental Engineering, Seoul National University)
Kim, Hyo Seung (Integrated Research Institute of Construction and Environmental Engineering, Seoul National University)
Publication Information
Journal of Korean Society of Transportation / v.32, no.6, 2014 , pp. 675-685 More about this Journal
Abstract
This paper develops a differentiated pricing strategy over each segment of expressways based on the second-best pricing method for reducing congestion. To this end, a bi-level problem is proposed, in which the upper level of the model is formulated to determine toll level of each segment for minimizing traffic congestion, whereas the lower level of the model is formulated as a variable demand assignment problem. The sensitivity analysis based algorithm is took placed to find optimal solutions of upper level model. An application of the proposed model uses the modified Sioux-Falls network. The results show that the segment-based differentiated pricing strategy performs better than the existing uniform pricing strategy in reducing traffic congestion. This study can be applied as a demand management method to relieve disutility of excessively congested segments of expressways.
Keywords
bi-level problem; differentiated pricing system; expressway toll; sensitivity analysis; traffic congestion;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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