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YANG Xiao-fang, HAN Yin, FU Qiang. Integrated control model of urban expressway off-ramp and correlative intersection[J]. Journal of Traffic and Transportation Engineering, 2009, 9(2): 110-115. doi: 10.19818/j.cnki.1671-1637.2009.02.020
Citation: YANG Xiao-fang, HAN Yin, FU Qiang. Integrated control model of urban expressway off-ramp and correlative intersection[J]. Journal of Traffic and Transportation Engineering, 2009, 9(2): 110-115. doi: 10.19818/j.cnki.1671-1637.2009.02.020
shu

Integrated control model of urban expressway off-ramp and correlative intersection

doi: 10.19818/j.cnki.1671-1637.2009.02.020
  • 1.

    School of Urban Construction and Environmental Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

  • 2.

    Shanghai Pudong Project Development Co., Ltd., Shanghai 201203, China

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  • Author Bio:

    YANG Xiao-fang(1975-), female, lecturer, PhD, +86-21-55273759, herryfuyang@126.com

  • Received Date: 2008-11-11
  • Publish Date: 2009-04-25
    Abstract
  • In order to keep the queues of intersection and off-ramp from backupping to expressway mainline, an integrated control model of off-ramp and correlative intersection was proposed based on cell transmission model(CTM). When overfull queue appeared at off-ramp, red truncation strategy or green extension strategy was adopted. When overfull queue did not appear at off-ramp, the cycle and green signal ratio of intersection were optimized dynamically to minimize the average vehicle delays of off-ramp and correlative intersection. Simulation result shows that the vehicle average delay of correlative intersection increases by 1.74 s, but the queue decreases from over 200 m to 160 m, so the strategies and model are reasonable and effective.

     

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    • References(14)
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