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Evaluation of Dynamic Lane Allocation Method at Climbing Lane Section

통행속도에 기반한 오르막차로 동적 운영방안 평가

  • Ko, Han-Geom (Civil and Transportation Engineering, Ajou University) ;
  • Choi, Yoon-Hyuk (Transportation Research Division, Korea Expressway Corporation Research Institute) ;
  • Oh, Young-Tae (Division of Environmental, Civil and Transportation Engineering, Ajou University) ;
  • Kang, Jeong-Gyu (Transportation Research Division, Korea Expressway Corporation Research Institute)
  • 고한검 (아주대학교 건설교통공학과) ;
  • 최윤혁 (한국도로공사 도로교통연구원 교통연구실) ;
  • 오영태 (아주대학교 환경건설교통공학부) ;
  • 강정규 (한국도로공사 도로교통연구원 교통연구실)
  • Received : 2011.12.19
  • Accepted : 2012.02.13
  • Published : 2012.02.28

Abstract

In aspects of traffic operation, a climbing lane may cause traffic congestion if the volume of traffic (v/c) grows and the ratio of heavy vehicle increases. Conversely, it would be effective, if the climbing lane is dynamically operated according to changes in traffic flow. However, there are no guideline to effectively control this climbing lane in aspects of traffic operation. In this study, we examine the necessity of flexible traffic operation criteria and its process for dynamic traffic management and also establish and analyze the effect of flexible traffic operation criteria in accordance with traffic properties using an example of climbing lane. We selected the operation criteria (critical travel speed), which decides whether to operate or close the climbing lane when the average travel speed of climbing lane is 50km/h based on VISSM (microscopic traffic simulation) analysis of Nakdong junction towards Masan with the volume of traffic (v/c), ratio of heavy vehicle as the traffic operation parameters. Based on the simulation result in accordance with the volume of traffic by the operation mode of climbing lane, the analysis on the effect of dynamic traffic management of climbing lane showed that the dynamic traffic management provides more convenience compare to the operation and close of climbing lane. Thereby, we proved that the dynamic traffic management of climbing lane is more effective.

교통소통을 개선하기 위해 설치된 오르막차로의 운영효율은 교통상태에 따라 달라지는 것이 관측된다. 교통운영측면에서 교통량(v/c)이 증가하고 중차량 구성비가 증가할 경우, 오르막차로는 오히려 교통혼잡의 요인으로 작용하기도 한다. 이는 교통류 상태에 따라 오르막차로를 동적으로 운영하면 효과가 있다는 것을 시사하지만, 교통운영측면에서 이를 효과적으로 제어할 계량적인 기준은 없는 실정이다. 본 연구에서는 오르막구간에서의 동적차로운영기준의 필요성을 제시하고, 교통특성에 맞는 기준을 수립하여 이에 대한 효과를 분석하고자 하였다. 낙동분기점 마산방향의 오르막구간을 선정하여 교통량비(v/c), 중차량 구성비 등을 교통운영변수로 VISSIM 분석을 시행하였다. 시뮬레이션 결과, 오르막구간의 평균통행속도가 50km/h일 때 오르막차로의 개방과 폐쇄를 결정하는 운영기준(임계통행속도)으로 적절한 것으로 나타났다. 또한 오르막차로 동적운영에 따른 효과를 분석한 결과, 동적운영의 경우 일반적인 개방과 폐쇄보다 편익이 높은 것으로 나타났다.

Keywords

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  2. Dynamic Control of Climbing Lane on Expressways pp.1976-3808, 2019, https://doi.org/10.1007/s12205-018-0250-0