KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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A Dynamic OD Construction Methodology using Vehicle Trajectory in Ideal C&R Communication Environment

이상적 C&R 환경에서의 궤적자료를 이용한 동적 OD 구축에 관한 연구

  • 이정우 (한국도로공사 스마트하이웨이사업단) ;
  • 최기주 (아주대학교 환경건설교통공학부) ;
  • 박상욱 (한국도로공사 스마트하이웨이사업단) ;
  • 손범수 (한국도로공사 산청지사)
  • Received : 2010.01.13
  • Accepted : 2011.02.21
  • Published : 2011.06.30
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Abstract

In order to properly evaluate ITS services exposed in SMART Highway project, a confident dynamic origin-destination (OD) is inevitably needed. This paper used WAVE communication information as a part of call and response (C&R) communication which constitutes core part of the technology for constructing OD. This information includes node information and vehicle information (e.g., latitude and longitude) as well as trajectory data and sample path volume date calculated using node information and vehicle information. A procedure developed to construct a dynamic OD and to validate OD is consist of 1) making toy network and one-hour 00 (random distribution), 2) collecting link information and vehicle information, 3) constructing five-minute OD, and 4) validating estimated OD result using traffic volume and travel time simultaneously. The constructed OD is about 84.79% correct within less than 20% error range for 15min traffic volume, and about 85.42%, within less than 20% error rate of 15 min travel time. Some limitations and future research agenda have also been discussed.

최근 차세대 ITS로서 도로공사 주관 하에 스마트하이웨이에 대한 연구가 수행되고 있으며, 스마트하이웨이에서 교통 분야 서비스의 효과평가 입력 자료로 신뢰성 높은 동적 OD를 요구하고 있다. 이에 본 연구는 스마트하이웨이의 핵심 기술인 WAVE 통신 기술로 대표되는 C&R 통신에서 수집되는 노드 정보와 차량정보를 이용할 경우 노드정보와 차량정보를 활용하여 궤적자료 및 표본경로교통량을 산출할 수 있으며, 이를 이용하여 동적 OD를 구축하였다. 이에 대한 검증을 위해 연속류의 토이네트워크에서 1시간 OD를 임의 분포하여 수집된 정보를 통해서 5분 단위의 동적 OD를 산출한 결과 15분단위의 교통량, 통행시간 측면에서 교통량 오차율이 20% 이내에 들어오는 경우가 전체의 84.79%, 통행시간 오차율이 20% 이내로 들어오는 경우가 전체의 85.42%로 신뢰성 있는 동적 OD를 구축할 수 있다고 판단된다.

Keywords

References

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