DOI QR코드

DOI QR Code

Alternative Measures of Effectiveness for Evaluating ITS Project

ITS 사업평가를 위한 효과척도 대안

  • Kim, Bong-Seok (Department of Urban Planning and Engineering, Yonsei University) ;
  • Nam, Seung-Yeon (Department of Urban Planning and Engineering, Yonsei University) ;
  • Ahn, Sun-Young (Department of Urban Planning and Engineering, Yonsei University) ;
  • Son, Bong-Soo (Department of Urban Planning and Engineering, Yonsei University)
  • 김봉석 (연세대학교 도시공학과) ;
  • 남승연 (연세대학교 도시공학과) ;
  • 안선영 (연세대학교 도시공학과) ;
  • 손봉수 (연세대학교 도시공학과)
  • Received : 2012.01.26
  • Accepted : 2012.05.18
  • Published : 2012.06.30

Abstract

The objective of this study is to build a methodology for evaluating intelligent transportation systems (ITS) projects, by selecting measures of effectiveness (MOEs) and developing an approach to collect and process traffic data. While reviewing the existing MOEs and evaluation methodologies for ITS projects, several problems were found, such as the complication in delineating study areas, the absence of standardized evaluation methodologies, and the duplication in selecting MOEs. To tackle these problems, two MOEs capable of directly evaluating traffic conditions were chosen: i.e., average vehicle speed and traffic volume. Both MOEs can not only include all the functions of the existing MOEs, but also be simpler and more objective in evaluating real traffic conditions. The traffic volume can be measured by using either "cordon line" or "all point average" methods. On the other hand, measuring the average vehicle speed depends on site-specific characteristics such as traffic flow states (interrupted or uninterrupted) and traffic conditions (congested or uncongested). The present methodology is easily understandable for anyone and applicable for any ITS project, and is also expected to contribute to building a standardized evaluation system.

본 연구의 목적은 ITS 사업의 시행효과를 효율적으로 측정할 수 있는 지표를 선정하고 지표와 관련된 자료의 수집 및 가공방법을 제시함으로써, ITS 사업의 효과를 객관적으로 평가할 수 있는 방법론을 정립하는 것이다. 본 연구는 국내 외 ITS 사업평가 방법론 및 평가지표를 검토하였으며 검토 과정 중 ITS 효과 평가 시 평가의 범위, 표준화된 ITS 효과분석 방법론의 부재, 효과평가 부문별 지표의 중복성의 문제를 파악하였다. 따라서 이러한 문제점을 해결하고자, 평가지표로 도로의 통행상태를 직접적으로 반영할 수 있는 평균통행속도와 통행량을 선정하였다. 선정한 두 지표는 기존의 효과평가 방법론에서 적용한 지표들의 의미를 포함하면서 소통 상태를 잘 반영할 수 있는 것으로 기존의 연구에서 제시한 지표들에 비해 단순하면서 객관적 평가가 가능하다. 통행량의 측정방법은 Cordon line, All Point Average 방법이 있으며, 평균통행속도의 측정방법은 교통류의 특성(연속류/단속류) 및 소통상태(혼잡/비혼잡)에 따라 측정방법을 달리 적용한다. 본 연구에서 제안한 평가방법론은 누구나 쉽게 이해할 수 있고 어느 사업에나 적용이 가능한 평가체계를 수립할 수 있다. 이를 정책적으로 활용할 목적으로 도입한다면 표준화된 ITS 평가체계를 수립할 수 있을 것으로 기대한다.

Keywords

References

  1. Son, B. S. and Kim, J. Y.(2000), "A study of the Evaluation Index for the Paved Roadway Occupancy in Seoul", Seoul Studies.
  2. Rhee, K. A., Son, B. S. and Choi, J. S.(2002), "A Study on Development of Road Coverage Index for 25 Autonomous 'gus' in Seoul Metropolitan Goverment", Seoul Studies.
  3. Lee, Y. T., Nam, D. H. and Park, D. J.(2004), "The Comparative Analysis of Evaluation Guidelines for ITS Projects", Journal of Korean Society of Transportation, Vol.22, No.3, Korean Society of Transportation, pp.215-226.
  4. Kang, W. E., et.al.,(2004), "MOE & Methodology for Efficiency TEST in ITS", The Korea Institute of Intelligent Transport Systems Congress Proceeding, 2004 Nov. 01, pp.30-35.
  5. Kang, J. H., et.al.,(2005), "The Study of ITS Evaluation - the FTMS of New Daegu- Busan Freeway", The Korea Institute of Intelligent Transport Systems Congress Proceeding, 2005 Nov. 01, pp.103-109.
  6. The Korea Transport Institute(1998), "The Evaluation of demonstration ITS project in Gwa-Chun".
  7. Son, B. S., et.al.,(2005), "Pitfall in Using Travel Speed in Traffic Signalized Intersection Networks", Lecture Notes in Computer Science, Vol.3794, pp.1059-1064.
  8. Nam, D. H.(2000), "Planning and Deployment for Intelligent Transportation System and Services", The Korea Transport Institue.
  9. Ministry of Land, Transport and Marine Affiars(2011), "Road Service Manual".
  10. Ministry of Land, Transport and Marine Affiars(2005), "ITS Project Guideline".
  11. traffic.seoul.go.kr, 2010 Traffic DATA, Seoul Metropolitan Government.