Capacity Model of the Right-turn Lane at Signalized Intersection With Channelized Islands

LAI Yuan-wen; RONG Jian; LIU Xiao-ming

doi:10.3969/j.issn.0254-0037.2012.06.012

Journal of Beijing University of Technology > 2012 > 38(6): 865-869. > DOI: 10.3969/j.issn.0254-0037.2012.06.012

LAI Yuan-wen, RONG Jian, LIU Xiao-ming. Capacity Model of the Right-turn Lane at Signalized Intersection With Channelized Islands[J]. Journal of Beijing University of Technology, 2012, 38(6): 865-869. DOI: 10.3969/j.issn.0254-0037.2012.06.012

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Capacity Model of the Right-turn Lane at Signalized Intersection With Channelized Islands

1. Beijing Key Lab of Transportation Engineering, Beijing University of Technology, Beijing 100124, China;
2. College of Civil Engineering, Fuzhou University, Fuzhou 350108, China

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Received Date: August 20, 2011
Available Online: December 02, 2022

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In order to estimate the capacity of right-turn lane at signalized intersections with channelized islands.Based on the gap acceptance model,this paper proposes a new approach to calculating the capacity of right-turn lane at signalized intersections with channelized islands.This model takes into account the interference of non-motorized traffic enter channelized islands.The non-motorized traffic is treated as the traffic on the major road-a crosswalk,which has great impacts on right-turn vehicles on the minor road-an exclusive right-turn lane.The basic model is modified by introducing the red light effect adjustment coefficient.The new model is calibrated and tested using the field data collected at 6 signalized intersections with channelized islands in 4 cities.The average relative error between the calculated value and the observed is 9.28%,which means the proposed method in this paper can better estimate the capacity of an exclusive free right-turn lane under the interference of non-motorized traffic.
- traffic engineering,
- capacity model of the right-turn lane,
- gap acceptance theory,
- signalized intersection,
- channelized islands

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Capacity Model of the Right-turn Lane at Signalized Intersection With Channelized Islands

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