대한교통학회지 (Journal of Korean Society of Transportation)

  • 제33권4호
  • /
  • Pages.417-429
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  • 2015
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  • 1229-1366(pISSN)
  • /
  • 2234-4217(eISSN)
대한교통학회 (Korean Society of Transportation)
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고속도로 교통자료 품질 통합평가지표 개발

Development of a Novel Integrated Evaluation Index for Freeway Traffic Data

  • 박현진 (한양대학교 교통.물류공학과) ;
  • 윤미정 (한국도로공사 ICT센터) ;
  • 김해 (한국도로공사 ICT센터) ;
  • 오철 (한양대학교 교통.물류공학과)
  • PARK, Hyunjin (Department of Transportation and Logistics Engineering, Hanyang University) ;
  • YOON, Mijung (Information and Communication Technology Center, Korea Expressway Corporation) ;
  • KIM, Hae (Information and Communication Technology Center, Korea Expressway Corporation) ;
  • OH, Cheol (Department of Transportation and Logistics Engineering, Hanyang University)
  • 투고 : 2015.04.08
  • 심사 : 2015.08.24
  • 발행 : 2015.08.31
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초록

본 연구에서는 고속도로에서 수집되는 차량검지기 자료를 대상으로 자료의 품질에 영향을 미치는 요인을 분석하여, 신뢰성 있는 교통자료의 관리 및 활용을 위한 교통자료 품질 통합평가지표를 개발하였다. 이를 위하여 국내외 자료품질평가에 대한 현황 조사 및 분석을 수행하여 시사점을 도출하였다. 품질관리지표는 기존의 고속도로 검지자료 품질평가에 사용되고 있는 평가지표인 완전성과 유효성뿐만 아니라, 이를 수정 보완한 지표들을 제시하였으며, 교통자료의 특성을 반영한 시공간 일관성 지표와 결측심각성 지표를 신규지표로 제시하였다. 또한, 개별 품질 평가지표들을 통합적으로 관리할 수 있는 통합 평가지표를 개발하고 평가 프레임워크를 제시하였다. 통합 품질평가지표는 쌍대비교를 통한 설문조사 방법으로 가중치를 산출하는 AHP기법과 자료의 변동성을 고려하여 가중치를 산출하는 엔트로피방법을 통합하는 혼합가중치 산출 방안을 적용하여 도출하였다. 본 연구의 결과물은 교통자료의 효율적 관리를 가능하게 하고, 교통자료의 품질을 높일 수 있는 품질관리체계의 중요 구성요소로 활용될 것으로 기대된다.

Evaluation of traffic data quality is a backbone of better traffic information and management systems because it directly affects the reliability of traffic information. This study developed an integrated index for evaluating the quality of archived intelligent transportation systems (ITS) data. Two novel indices including spatio-temporal consistency and severity of missing data were devised and integrated with existing indices such as availability and completeness. An evaluation framework was proposed based on the developed integrated index. Both analytical hierarchical analysis (AHP) technique and entropy method were adopted to derive mixed weighting values to be used for the integrated index. It is expected that the proposed methodology would be effectively used in enhancing the quality of traffic data as a part of traffic information system.

키워드

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