• Title/Summary/Keyword: 대중교통정책

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The study on error, missing data and imputation of the smart card data for the transit OD construction (대중교통 OD구축을 위한 대중교통카드 데이터의 오류와 결측 분석 및 보정에 관한 연구)

  • Park, Jun-Hwan;Kim, Soon-Gwan;Cho, Chong-Suk;Heo, Min-Wook
    • Journal of Korean Society of Transportation
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    • v.26 no.2
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    • pp.109-119
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    • 2008

  • The number of card users has grown steadily after the adaption of smart card. Considering the diverse information from smart card data, the increase of card usage rate leads to various useful implications meaning in travel pattern analysis and transportation policy. One of the most important implications is the possibility that the data enables us to generate transit O/D tables easily. In the case of generating transit O/D tables from smart card data, it is necessary to filter data error and/or data missing. Also, the correction of data missing is an important procedure. In this study, it is examined to compute the level of data error and data missing, and to correct data missing for transit O/D generation.

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