The Journal of The Korea Institute of Intelligent Transport Systems (한국ITS학회 논문지)

The Korea Institute of Intelligent Transport Systems (한국ITS학회)
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A Study on the Estimation of Design Service Traffic Volume for Turbo Roundabout

국내 나선형 교차로 도입을 위한 적정교통량 산정연구

  • Song, Min soo (Dept. of Transportation Eng & Smart cities., Univ. of Seoul) ;
  • Lee, Dong min (Dept. of Transportation Eng & Smart cities., Univ. of Seoul)
  • 송민수 (서울시립대학교 교통공학과 & 스마트시티학과) ;
  • 이동민 (서울시립대학교 교통공학과 & 스마트시티학과)
  • Received : 2021.08.20
  • Accepted : 2021.10.13
  • Published : 2021.10.31
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Abstract

It is generally known that a two-lane roundabout has some problems in safety such as increasing conflicts, typically merging and diverging conflicts and conflicts between entering traffic and exiting as well as turning traffic. To solve these problems, a turbo-roundabout had been developed and has successfully brought safer and more efficient operation in other countries. In this study, micro simulations using VISSIM were conducted to investigate the maximum value of service traffic volume. It was found that operation of turbo-roundabouts was influenced by traffic volume for each turning traffic, and the maximum values of traffic volume were values between 2,400 and 2,800 vehicles per hour as rates of traffic volume for each turning traffic. Typically, turbo-roundabouts have limited to operate in conditions with more than 30% for left-turning traffic volume.

국내에서 운영중인 2차로 회전교차로는 합·분류 등에서 발생하는 상충, 진출·입차량과 회전차량간의 상충 등의 문제점이 있다. 해외에서는 2차로 회전교차로의 문제점을 해결하기 위해 주행경로를 도류화시켜 안전성과 효율성을 향상 시켜주는 나선형 회전교차로를 운영하고 있다. 본 연구에서는 나선형 회전교차로의 국내에 맞는 적정교통량 수준을 분석하기 위해 VISSIM을 이용하여 교통량수준, 방향별 회전교통량을 일정한 수준으로 증가시켰다. 나선형 회전교차로는 방향별 회전교통량에 의해 차이가 있지만 적정교통량은 2,400-2,800대/시인 것으로 분석되었다. 나선형 회전교차로는 좌회전·직진교통량에 의해 지체가 증가하는 것으로 분석되었으며, 좌회전 통행비율이 30% 이상인 경우 나선형 회전교차로보다 2차로 회전교차로와 신호교차로의 운영이 더 효율적인 것으로 분석되었다.

Keywords

Acknowledgement

본 연구는 국토교통부의 「스마트시티 혁신인재육성사업('19-'23)」으로 지원되었습니다.

References

  1. Elzbieta M.(2015), "The road safety at turbo roundabouts in Poland," Article in Archives of Transport, vol. 33, no. 1, pp.57-67. https://doi.org/10.5604/08669546.1160927
  2. Engelsman J. C. and Uke M.(2007), "Turbo roundabouts as an alternative to two lane roundabouts," Document Transformation Technologies cc, 26th Annual Southern African Transport Conference 2007, pp.581-589.
  3. FHWA, Turbo Roundabouts-Informational Primer, FHWA Safety, p.6.
  4. Fortuijn L. G. H.(2009), "Turbo Roundabouts Estimation of Capacity," Transportation Research Board of the National Academies, vol. 2130, no. 1, pp.83-92. https://doi.org/10.3141/2130-11
  5. Jaime B. and Jordi C.(2005), Simulation Approaches in Transportation Analysis, Springer, pp.57-98.
  6. Joe G.(2018), "Uniformity of Terminology for Circular Intersection Designs," Transportation Research Record, vol. 2672, no. 34, pp.63-72. https://doi.org/10.1177/0361198118786672
  7. Lambertus G. H. F.(2009), "Turbo Roundabouts: Design Principles and Safety Performance," Transportation Research Record : Journal of the Transportation Research Board, vol. 2096, no. 1, pp.16-24. https://doi.org/10.3141/2096-03
  8. Lee D. M. and You J. H.(2013), "A Study on Appropriate Traffic Volume Calculation for Revitalizing Round about Installation," Journal of Korean Society of Transportation, vol. 31, no. 6, pp.43-52. https://doi.org/10.7470/jkst.2013.31.6.043
  9. Lee D. M., You J. H., Kim D. H. and Lee S. K.(2013), "An Analysis of Roundabout Application Effects Based on Before and After Field Studies," International Journal of Highway Engineering, vol. 15, no. 1, pp.111-119. https://doi.org/10.7855/IJHE.2013.15.1.111
  10. Lim C. S. and Choi Y. W.(2018), "Effectiveness Analysis of Installation of Turbo Roundabouts," Journal of the Korean Society of Civil Engineers, vol. 38, no. 6, pp.925-932. https://doi.org/10.12652/KSCE.2018.38.6.0925
  11. Lim J. K. and Park B. H.(2016), "Operational Effects of Special Roundabouts at Large-Scale Rotaries," International Journal of Highway Engineering, vol. 18, no. 1, pp.109-117. https://doi.org/10.7855/IJHE.2016.18.1.109
  12. Raffaele M. and Federico B.(2010), "Comparative Analysis of Compact Multilane Roundabouts and Turbo-Roundabouts," Journal of Transportation Engineering, vol. 136, no. 4, pp.316-322. https://doi.org/10.1061/(ASCE)TE.1943-5436.0000106
  13. Raffaele M. and Marco G.(2015), "Evaluation of the Safety Performance of Turbo Roundabouts by Means of a Potential Accident Rate Mode," The Baltic Journal of Road and Bridge Engineering, vol. 10, no. 1, pp.28-38. https://doi.org/10.3846/bjrbe.2015.04
  14. Tomaz T. et al.(2010), "New type of roundabout: Roundabout with "depressed" lanes for right turning-"flower roundabout"," Traffic&Transportation, vol. 23, no. 5, pp.353-358.
  15. Vasconcelos L. et al.(2014), "Turbo roundabouts: Multicriterion assessment on intersection capacity, safety, and emissions," Transportation Research Board of the National Academies, vol. 2402, no. 1, pp.28-37. https://doi.org/10.3141/2402-04
  16. WIJK W.(2009), Turbo roundabouts a safe solution for Hungary, Royal Haskoning, p.8.
  17. Ynag T. Y., Lee Y. I. and Yoon T. K.(2019), "Application and Evaluation of Signal Metering at Special Roundabouts," The Journal of The Korea Institute of Intelligent Transport Systems, vol. 18, no. 6, pp.96-109. https://doi.org/10.12815/kits.2019.18.6.96