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YANG Zhao-sheng, GAO Xue-ying, SUN Di. Cellular automata model of urban traffic emergency evacuation and rescue[J]. Journal of Traffic and Transportation Engineering, 2011, 11(2): 114-120. doi: 10.19818/j.cnki.1671-1637.2011.02.019
Citation: YANG Zhao-sheng, GAO Xue-ying, SUN Di. Cellular automata model of urban traffic emergency evacuation and rescue[J]. Journal of Traffic and Transportation Engineering, 2011, 11(2): 114-120. doi: 10.19818/j.cnki.1671-1637.2011.02.019
shu

Cellular automata model of urban traffic emergency evacuation and rescue

doi: 10.19818/j.cnki.1671-1637.2011.02.019
  • 1.

    State Key Laboratory of Automobile Dynamic Simulation, Jilin University, Changchun 130022, Jilin, China

  • 2.

    School of Transportation, Jilin University, Changchun 130022, Jilin, China

More Information
  • Author Bio:

    YANG Zhao-sheng(1941-), male, professor, + 86-431-85095891, yangzs@jlu.edu.cn

  • Received Date: 2010-10-18
  • Publish Date: 2011-04-25
    Abstract
  • The effects of vehicle delay on the emergency evacuation and rescue decision-making of all traffic flow conflicts within cities were analyzed.An intersection control parameter was introduced into the exciting simulation model of emergency evacuation and rescue, and the model was based on cell transmission model.A simulation model of emergency evacuation and rescue was built under intersection emergency control.In the improved model, the weighted travel time of emergency evacuation and rescue in planning horizon was minimized, and contraflow strategy was introduced.Simulation result shows that because giving way to high-priority traffic flows G3 and G4, the average travel times of low-priority traffic flows G1 and G2 increase by 10.0 s and 11.1 s respectively, which accords with the actual circumstance of urban emergency evacuation and rescue.After the implementation of contraflow strategy, the travel times of beneficial traffic flows G2 and G4 decrease by 6.5 s and 6.0 s respectively.So the model and contraflow strategy are feasible.

     

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