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Microscopic Evaluation of the Quality of Public Transportation Service by Region in Seoul

Gyeong-sang Yoo, Seungjun Kim, Junhyoung Yeon, Jihan Kim

In this study, public transportation accessibility and mobility were evaluated microscopically. Public transport accessibility was evaluated by dividing the entire Seoul area into grid cells in unit of 100m. Public transport attribute data such as public transport facilities and routes available in each cell were collected and the accessibility index for each cell was calculated using such data. Mobility of public transportation by region was evaluated by analyzing travel time and the number of transfers required for moving between survey units of KOSTAT. Passenger car travel time was also analysed to determine competitiveness of public transportation in Seoul. Lastly, by identifying living service facilities that could be accessed within a unit time using public transportation, differences in convenience of living by region were examined.
The methodology and analysis results of this study can be used to help us prepare public transport policies such as evaluating regional equity of public transport services, adjusting and establishing routes, and supplying auxiliary transport modes. In addition, results of this study can be used in various fields such as public transportation-centered urban planning and public transportation service information provision for citizens.