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A Study on Appropriate Traffic Volume Calculation for Revitalizing Roundabout Installation

국내 회전교차로 활성화를 위한 적정교통량 산정에 관한 연구

  • Lee, Dongmin (Department of Transportation Engineering, University of Seoul) ;
  • You, Jungho (Department of Transportation, Goyang City)
  • 이동민 (서울시립대학교 교통공학과) ;
  • 유정호 (고양시 교통정책과)
  • Received : 2012.01.20
  • Accepted : 2013.11.08
  • Published : 2013.12.31

Abstract

A roundabout is a form of circular intersection in which traffic travels counterclockwise around a central island and in which entering traffic must yield to circulating traffic. It has been known that a roundabout provides substantially better operational and safety characteristics than other intersections including rotaries. Recently, a roundabout has started to be constructed due to its efficiency, safety, and other advantages of a roundabout comparing other intersections in Korea. However, there has been no guideline to be used to decide appropriate intersection types considering given conditions of the intersections. To solve this problem, the guideline with traffic volume to choose the suitable intersection types was developed based on analysis results using the SIDRA software which is generally used to analyze operational effects of roundabouts. It was found that a roundabout is more efficient than signalized intersection when the traffic volume is between 125 and 450 veh/h on one lane road and roundabout is not recommended when there are more than 30% left turn traffic. The optimal traffic volume provided in this research will be usefully used in planing and designing roundabouts in Korea.

회전교차로는 교차로 중앙의 원형교통섬을 우회하며 교차로를 통과하고, 진입차량이 회전차량에게 양보하는 방식으로 운영되는 교차로 유형이다. 회전교차로는 교통운영 및 안전측면에서 다른 교차로 유형에 비해 효율적인 것으로 알려져 있다. 최근 국내에서는 매년 약 100여개의 회전교차로가 전국적으로 시범 설치 운영되어 모니터링 되고 있다. 본 연구에서는 교차로 분석용 교통시뮬레이션 프로그램임 SIDRA를 이용하여 교통류 조건에 따라 회전교차로 계획, 및 설계하기 위한 평면교차로 유형별 적정 교통량 기준을 마련하였다. 교통시뮬레이션 분석결과 방향별로 진입교통량이 100-150대/시 이상인 1차로 비신호교차로(TWSC, AWSC)와 진입교통량이 400-500대/시 이하인 신호교차로 경우에는 회전교차로 전환에 따라 교통운영 효율화를 기대할 수 있는 것으로 분석되었다. 또한, 좌회전 교통류율이 30%가 넘는 교차로에서는 회전교차로 보다는 신호교차로를 설치함이 바람직한 것으로 분석되었다. 이와 같은 회전교차로의 적정교통량 수준 산정결과는 회전교차로 도입의 적절한 위치 선정에 도움에 되어 회전교차로 활성화에 많은 도움이 될 수 있을 것으로 기대한다.

Keywords

References

  1. CTIA(Community Transportation Innovation Academ) (2005), Modern Roundabouts: A guide for application.
  2. Florida DOT (1996), Florida Roundabout Guide.
  3. Jeon W. H., Doh T. W. (2003), Analysis of the Entry Capacity of Roundabouts, J. Korean Soc. Transp., 21(3), Korean Society of Transportation, 59-69.
  4. Kim E. C., Ji M. K. (2009), A Study of Level of Service Criteria for Roundabouts, J. Korean Soc. Transp., 27(1), Korean Society of Transportation, 7-16.
  5. Kim T. Y., Park S. H., Park B. H. (2009), Analysis on the Applicability of Roundabout to the Diamond Interchange, J. Korean Soc. Transp., 27(1), Korean Society of Transportation, 53-62.
  6. Ministry of Construction and Transportation (2004), At-Grade Intersection Design Guide.
  7. Ministry of Land, Transport and Maritime Affairs (2005), Korean Highway Capacity Manuals.
  8. Ministry of Land, Transport and Maritime Affairs (2010), Korean Roundabout Design Guide.
  9. Park B. H., Jung Y. I. (2005), Performance Evaluation of 4-Leg and 1-Lane Modern Roundabout Using SIDRA, Journal of the Korean Regional Development Association, 17(2), The Korean Regional Development Association.
  10. Park B. H., Kim T. Y., Han S. W., Yang J. M. (2009), Comparative Analysis on the Effectiveness of Modern Roundabouts and 4-legged Signalized Intersections, The Journal of The Korea Institute of Intelligent Transport Systems, 8(2).
  11. Presidential Council on National Competitiveness (2009), Roundabout Vitalization Ways for Green Transportation.
  12. Presidential Council on National Competitiveness (2012), Analysis of Roundabout Construction Results, White Paper.
  13. Rodergerdts L. A., Lee et al. (2007), NCHRP Report 572: Roundabouts in the United State, Transportation Research Board.
  14. Sisiopiku V. P., Oh H. U. (2001), Evaluation of roundabout Performance Using SIDRA, Journal of Transportation Engineering, 127(2), American Scciety of Civil Engeineers, 143-150. https://doi.org/10.1061/(ASCE)0733-947X(2001)127:2(143)
  15. The Korea Transport Institute (2010), A Study of a Roundabout Application in Road Networks.
  16. The Korea Transport Institute.(2011), A Study for Roundabout Vitalization Ways in Kroea.
  17. Transportation Research Board (2007), Roundabouts in the United States.
  18. Transportation Research Board (2010), Roundabouts; An Informational Guide 2nd Edition.

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  3. Operational Effects of Special Roundabouts at Large-Scale Rotaries vol.18, pp.1, 2016, https://doi.org/10.7855/IJHE.2016.18.1.109
  4. Comparative Study of Two Measures of Traffic Flow Effectiveness at Roundabouts and Signalized Intersections vol.18, pp.3, 2016, https://doi.org/10.7855/IJHE.2016.18.3.095
  5. Evaluation of the Rain Effects on Gap Acceptance Behavior at Roundabouts by a Logit Model vol.2018, pp.2042-3195, 2018, https://doi.org/10.1155/2018/2726732
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