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Estimation of Operating Cost and Efficiency of the Introduction of Urban Subway  

Park, Jun-Sik (한국교통연구원 광역도시교통연구실)
Oh, Dong-Kyu (서울대학교 건설환경공학부)
Kho, Seung-Young (서울대학교 건설환경공학부)
Publication Information
Journal of Korean Society of Transportation / v.26, no.6, 2008 , pp. 113-122 More about this Journal
Abstract
This study extended Park et al.(2007c), which analyzed the efficiency of a hierarchical transit network, showed the result of a real data, and analyzed its applicability. Operating cost was estimated using a model which was established in this study, and minimum transit demand was derived from the operating cost. The minimum transit demand value is just a sample calculation, thus it varies by many inside and outside factors of the model. Looking at the inside of the model, operating cost and travel speed are major factors, and the possibility of introducing urban subway becomes high when the operating cost of the transit system is low and its travel speed is high. As far as the outside factors are concerned, according to the analysis on the network structure, transit demand, and transit mode share, the minimum transit demand value which was derived in this study will be the maximum value among the possible values. In the feasibility study, the benefit is likely to be overestimated and the cost is likely to be underestimated than those of this study. It could be concluded that the methodology of a feasibility study is appropriate in the field standard. This study analyzed the efficiency of introduction of urban subway using analytical approach, thus has many shortcomings and limitations. However the practical approach, like feasibility study, has some limitations as well. This study could be a basis on establishing an analysis framework that is more accurate and reasonable by comparing analytical approach and practical approach.
Keywords
Transit; Operating Cost; Urban Subway; Transit Demand; Feasibility Study;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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