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http://dx.doi.org/10.12652/Ksce.2014.34.5.1559

The Cost Structure of the Lines of Urban Railway  

Kim, Soo Hyun (Busan Development Institute)
Jung, Hun Young (Pusan national University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.34, no.5, 2014 , pp. 1559-1569 More about this Journal
Abstract
The purpose of this study is to estimate the degree of cost inefficiency for the urban railway lines of a metropolitan city operated by public institutions in Korea and identify the causes of this inefficiency. To this end, we assume that the urban railway lines produce the output of train-km by putting three production factors of labor, electric power and maintenance and set the variable cost function model with the translog function to make a stochastic cost frontier analysis. Based on estimated result, we conclude that the cost savings for 6 years of all lines are about 6,672 hundred million won and top five lines with high inefficiency are Busan Line1, Daegu Line1, Daejeon Line1, Gwangju Line1, and Daegu Line2. The causes of inefficiency are attributable to labor and maintenance factors. The results of this study can be useful in case of finding the priorities of measures and specific plans for reducing labor and maintenance costs in the urban railway operation.
Keywords
Lines of urban railway; Inefficiency; Cost structure; Translog variable cost function; Stochastic cost frontier analysis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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