International Journal of Highway Engineering (한국도로학회논문집)

Korean Society of Road Engineers (한국도로학회)
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Establishing Probability-Based Warrants for Right-Turn Lanes at Unsignalized Intersections

확률기반 비신호교차로의 우회전 전용차로 설치 기준 정립

  • Moon, Jaepil (Highway and Transportation Research Institute, KICT)
  • Received : 2017.06.26
  • Accepted : 2017.11.20
  • Published : 2017.12.15
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Abstract

PURPOSES : The objective of this study is to establish the traffic volume-based warrants of right-turn lanes at unsignalized intersections and to introduce a risk probability methodology based on the warrants. METHODS : In this study, a risk probability of a potential rear-end collision is applied between a right-turn vehicle and the immediately following through vehicle. Using the shifted negative exponential model and the compound probability theorem, the risk probability can be expressed as the function of directional volumes and the percentage of right-turns for a two-lane and four-lane highway, respectively. RESULTS : Based on the risk probablity, guidelines for installing right-turn lanes on two-lane and four-lane highways were developed. The risk probability also showed rationality by comparing with right-turn same-direction conflicts observed in-situ. CONCLUSIONS : The results of our study define the total approaching volumes to encourage a right-turn lane as a function of operating speed, percentage of right-turn, and number of lanes.

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References

  1. AASHTO (2011). A Policy on Geometric Design of Highways and Streets.
  2. Ingrid B. Potts, John F. Ringert, Douglas W. Harwood, and Karin M. Bauer (2007). "Operational and Safety Effects of Right-turn Deceleration Lanes on Urban and Suburban Arterials." Transportation Research Record 2023, Transportation Research Board, Washington, D. C., pp.52-62. https://doi.org/10.3141/2023-07
  3. Institute of Transportation Engineers (ITE) (2005). Manual of Transportation Engineering Studies.
  4. Jaepil Moon and Dongnyong Kim (2014). "A Study on Headway Distribution Models of Rural Two Lane Roads." International of Journal Highway Engineering, Vol. 16, No. 1, pp.49-56. https://doi.org/10.7855/IJHE.2014.16.1.049
  5. Jidong Yang, (2008). "Risk-Based Volume Warrants for Free Right-Turn Lanes on Two-Lane Roadways." Journal of Transportation Engineering, ASCE, Vol. 134, No. 4, pp.1155-162.
  6. J. M. Mounce (1983). "Influence of Arterial Access Control and Driveway Design on Energy Consumption." Transportation Research Record 901, Transportation Research Board, Washington D. C., pp.42-46.
  7. Ministry of Land, Infrastructure and Transport (MOLIT) (2013). Regulation on Geometric Design/Facilities Standards of Roads.
  8. Patrick T. McCoy, James A. Bonneson, Syed Ataullah, and Duane S. Eitel (1994). "Guidelines for Right-turn Lanes on Urban Roadways." Transportation Research Record 1445, Transportation Research Board, Washington, D. C., pp.130-137.
  9. Patrick T. McCoy and James A. Bonneson (1996). "Volume Warrants for Free Right-turn Lanes at Unsignalized Intersections on Rural Two-lane Highways." Transportation Research Record 1523, Transportation Research Board, Washington, D. C., pp.83-90 https://doi.org/10.3141/1523-10
  10. Tanweer Hasan and Robert W. Stokes (1996). "Guidelines for Right-turn Treatments at Unsignalized Intersections and Driveways on Rural Highways" Transportation Research Record 1579, Transportation Research Board, Washington, D. C., pp.63-72.