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Equity Analysis of Feeder Bus Routes in Seoul using DEA(Data Envelopment Analysis) Model  

Han, Jin-Seok (한국교통연구원 국가교통DB센터)
Kim, Hye-Ran (국토연구원)
Go, Seung-Yeong (서울대학교 건설환경공학부)
Publication Information
Journal of Korean Society of Transportation / v.29, no.2, 2011 , pp. 15-24 More about this Journal
Abstract
This study discusses an equity analysis performed to supplement the existing bus service evaluation system. The equity of 179 feeder bus routes in the city of Seoul(Year 2009) is analyzed by employing the modified BCC model along with the desirable inputs such as a number of bus stops and a frequency of operations. In the analysis, each DMU (Decision Making Unit) is assumed to use the desirable inputs, and produces both the index of equity and the index of accessibility. We apply an input-oriented modified BCC model to analyze the equity of the DMUs. The computational result indicates that only 9% of the feeder bus routes are equitable among the total DMUs and the average equity estimate is 0.702. It is also suggested that on average approximately 60% increases of desirable inputs (i.e., a number of bus stops and a frequency of operations) are needed in order to improve equity of DMU in the city of Seoul. The result of the tobit regression analysis on the determinant factors affecting the equity of DMUs shows that all the independent variables (i.e., a number of bus stops and a frequency of operations) are statistically significant at 5% significance level, and the number of bus stops is found to be the most influential factor.
Keywords
Equity; Desirable Input; Modified BCC Model; Translation Invariance; Tobit Regression;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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