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대중교통 서비스 개선을 위한 서울시 출근통행의 질 평가
김순관(Soon-Gwan, Kim),고준호(Joonho Ko),이신해(Shinhae Lee),장지은(Jee Eun, Jang),정기성(Kiseong Jeong) 서울연구원 2014 서울연구원 정책과제연구보고서 Vol.- No.-
The objectives of this Study are to evaluate the quality of public transport commuting and identify new directions of public transport service improvements. The research was based on survey results of public transport commuters in three downtowns(CBD, two subcenters:Gangnam and Yeoido) of Seoul. Significant survey results are summerized in the following. Current congestion levels of bus and subway are 94.5% and 140.5% respectively. On the other hand, acceptable congestion levels of bus and subway are 50.0% and 60.6%. [그림본문참조] The most important factors for the choice of public transport in order to commute are ‘total travel time’ and ‘access time’ which are determined by the choices of residential and work place. However, the most inconvenient factors are ‘waiting time’ and ‘transfer time’ because these two factors are determined by the quality level of government service. [그림본문참조] A public transport happiness index was created in order to evaluate the quality of public transport commuting. The index consist of two groups of factors. The first quantitative group reflects differences of current and acceptable level for access time, waiting time, transfer time, total travel time and congestion. The second qualitative group reflects inconvenience score for the other factors which are noise, fare, available seats, wireless communication service(wifi), kindness of drivers, comfortableness and convenient facilities. The individual importance score for the factors was used as a weight. The average public transport happiness index for downtown commuters in Seoul is 71.3. Male, less frequent transfers and short commuting distance impact on higher happinessindex. A sensitivity analysis of public transport happiness index assumed an acceptable level of each factor. The results showed that ‘transfer time’ was the most effective factor. [그림본문참조]