DOI QR코드

DOI QR Code

Classification of Freeway Traffic Condition by the Impacts of Road Weather Factors

도로기상요인의 영향에 따른 고속도로 교통상황 유형 분류

  • 심상우 (아주대학교 일반대학원 교통시스템공학과) ;
  • 최기주 (아주대학교 교통시스템공학과)
  • Received : 2009.06.01
  • Accepted : 2009.10.30
  • Published : 2009.11.30

Abstract

The purpose of this paper is to classify the traffic condition in freeway by the impacts of road weather. The factor analysis showed that weather factors, which are considered as influential, are identified as weather condition (rain or clear), temperature and sight distance with RWIS and VDS data in Seohae bridge used. The result of ANOVA shows that weather is dividedinto clear and rainy; temperature into below and equal or above $5^{\circ}C$ and sight distance into below or equal or above 10km. Based on those factors, the freeway traffic condition has been classified as five different types. The flow-speed model for each traffic conditions was proposed, which was not significant due to the lack of smaple data. Although not sufficient, the methodology to categorize traffic situation model presented in this paper may shed light on the idea for the future and can be used for proper traffic management for each weather condition.

본 연구는 다양한 기상 요인의 영향 정도에 따른 속도 변화를 분석하여 고속도로의 교통상황 분류를 목적으로 하였다. 서해대교의 RWIS와 VDS 자료를 활용하여 요인분석한 결과 교통상황에 영향을 주는 기상요인은 날씨, 온도, 시정거리로 나타났다. 각 요인에 따른 교통상황을 분류하기 위해 요인별로 분산분석을 실시한 결과 날씨는 맑음과 강우, 온도는 $5^{\circ}C$ 이하와 이상, 시정거리는 강우 시에만 10km 이하와 이상으로 분류되어 총 5개 유형의 교통상황으로 분류되었다. 보다 원활한 교통관리를 위해 각 상황별로 교통량-속도 모형을 추정하였으나 분석자료의 부족으로 설명력은 다소 낮게 나타났다. 그러나 장기간의 자료를 본 연구에서 제시된 분석과정에 입각하여 분석할 경우 기상요인에 따른 유형별 교통관리가 가능할 것으로 기대된다.

Keywords

References

  1. 김성환, 이청원(2008) 강우량에 따른 고속도로 최대교통류율 및 속도 변화 분석, 제58회 대한교통학회 학술발표회, 대한교통학회, pp. 500-509.
  2. 오주삼, 최대순, 조윤호, 정진혁(2002) 안개로 인한 속도변화 특성에 관한 연구-일반국도를 중심으로-, 대한토목학회논문집, 대한토목학회, 제22권 제4D호, pp. 677-685.
  3. 최정순, 손봉수, 최재성(1999) 기상조건에 따른 도시고속도로 교통류 변화 분석, 대한교통학회지, 대한교통학회, 제17권 제1호, pp. 29-40.
  4. 최필순(2003) WIS를 활용한 가변속도규제방안, 석사학위논문, 한밭대학교.
  5. Brilon, W. and Ponzlet, M. (1996) Variability of speed-flow relationships on german autobahns, Transportation Research Record 1555,Transportation Research Board, pp. 91-98. https://doi.org/10.3141/1555-12
  6. Edward Chung, Osamu Ohtani, Hiroshi Warita, Masao Kuwahara and Hiroshi Morita (2006) Does Weather Affect Highway Capacity?
  7. Hanbali, R.M. and Kuemmel, D.A. (1993) Traffic volume reductions due to winter storm conditions, Transportation Research Record: Journal of the Transportation Resea rch Board 1387, pp. 159-164.
  8. Hassan, Y. A. and Barker, J. J. (1999) The impact of unseasonable or extreme weather on traffic activity within lothian region, Transport Geography, Vol 7, No. 3, pp. 209-213. https://doi.org/10.1016/S0966-6923(98)00047-7
  9. Ibrahim, A. T. and Hall, F. L. (1994) Effect of adverse weather conditions on speed-occ upancy relationships, Transportation Resea rch Board 1457, pp. 184-191.
  10. Ju Sam Oh, Yong Un Shim, and Yoon Ho Cho (2002) Effect of weather conditions to traffic flow on freeway, KSCE Journal of Civil Engineering, 대한토목학회, Vol. 6, No. 4, pp. 413-420. https://doi.org/10.1007/BF02841995
  11. Knapp K. K. and Smithson L. D. (2000) Winter storm event volume impact analysis using multiple-source archived monitoring data, Journal of the Transportation Research Board 1700, pp. 10-16. https://doi.org/10.3141/1700-03
  12. Keay, K. and Simmonds, I. (2005) The asso ciation of rainfall and other weather vari ables with road traffic volume in melbou rne, Accident Analysis and Prevention, Vol. 37, pp. 109-124. https://doi.org/10.1016/j.aap.2004.07.005
  13. Lamm, R.,Choueiri, E. M., and Mailaender, T. (1990) Comparison of operation speed on dry and wet pavements of two-lane rural highway, Transportation Research Record 1280, pp. 199-207.
  14. Manish Agarwal, Thomas H. Maze, and Reginald Souleyrette (2005) Impacts of weather on urban freeway traffic flow characteristics and facility capacity, Proceedings of the 2005 Mid-Continent Transportation Research Symposium.
  15. May. A. D. (1998) Capacity and Level of Service for Freeway Systems,3rd Interim Report, Phase C-Tasks C1 through C10.
  16. Michael Kyte, Zaher Khatib, Patrick Shannon, and Fred Kitchener (2001) Effect of Environmental Factors on Free-Flow Speed,pp. 108.
  17. Robert Hranac, Emily Sterzin, Daniel Krechmer, Hesham Rakha and Mohamadreza Farzsn도 (2006) Empirical Studies on Traffic Flow in Inclement Weather, FHWA-HOP-07-03.