[1] Zhao Xing, Ren Gang, Zhang Xiaoli, Li Yan, et al. Optimization method for evacuation zonewith network reconfiguration based on dynamic simulation [J]. Journal of Southeast University (English Edition), 2016, 32 (3): 373-378. [doi:10.3969/j.issn.1003-7985.2016.03.019]
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Optimization method for evacuation zonewith network reconfiguration based on dynamic simulation(
)
基于动态仿真与路网优化的疏散区域确定方法
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 32
- Issue:
- 2016 3
- Page:
- 373-378
- Research Field:
- Traffic and Transportation Engineering
- Publishing date:
- 2016-09-20
Info
- Title:
- Optimization method for evacuation zonewith network reconfiguration based on dynamic simulation
- 基于动态仿真与路网优化的疏散区域确定方法
- Author(s):
- Zhao Xing1, Ren Gang2, Zhang Xiaoli1, Li Yan3
-
1College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China
2School of Transportation, Southeast University, Nanjing 210096, China
3NARI Technology Co., Ltd., Nanjing 210061, China
- Keywords:
- evacuation zone; cell transmission model; traffic network reconfiguration; intersection delay
- PACS:
- U491.1
- DOI:
- 10.3969/j.issn.1003-7985.2016.03.019
- Abstract:
- With a determinate danger zone and evacuation demand caused by an emergency, an optimization method for the evacuation zone with network reconfiguration based on dynamic simulation is proposed. The method contains three modules. First, the network in the evacuation zone is optimized by a model with the integrated strategy of lane reversal and intersection conflict elimination. Secondly, the dynamic evacuation simulation model based on the cell transmission model is applied to simulate the dynamic propagation process of evacuated vehicles in the network in the evacuation zone. The evacuation time for all evacuated vehicles leaving the danger zone is obtained and the setting of the current evacuation zone is fed back. Thirdly, the arrival distributions of evacuated vehicles at critical intersections of the evacuation zone are also obtained to estimate the delay at critical intersection to determine whether the intersection should be taken as the critical intersection in the next iteration. The evacuation zone is expanded gradually through iteration, and the reasonable evacuation zone and the optimal evacuation network is confirmed. Based on the survey of the parking lot and urban street network around Nanjing Olympic Sports Center, the models and the iterative algorithm were applied to obtain the optimal plan of the evacuation zone with network reconfiguration in an evacuation situation to verify the validity of the proposed method.
- 在确定的突发事件危险区域与疏散需求基础上, 提出了基于动态仿真与路网优化的疏散区域确定方法.该方法包含3个模块:运用车道反向设置与消除交叉口冲突综合策略, 对疏散区域内的路网进行优化;应用基于元胞传输模型的动态疏散仿真模型, 对待疏散车辆在疏散区域内路网上的动态运行状况进行模拟, 获取临界交叉口车辆到达的估计值和待疏散车辆离开危险区域的时间, 并对当前疏散区域范围的设置进行反馈;基于疏散车辆到达临界交叉口的状况, 计算临界交叉口延误, 并将其作为该交叉口是否仍旧为下一次迭代的临界交叉口的判定值.通过迭代, 疏散区域范围逐渐扩大, 最终确定合理的疏散区域与区域内的路网优化方案.应用上述模型与迭代算法, 基于南京奥体中心周边停车设施、道路网络分布与道路基础设施现状调查, 获取疏散状况下的疏散区域与路网重构方案, 验证了所提方法的有效性.
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Memo
- Memo:
-
Biography: Zhao Xing(1986—), female, doctor, lecturer, bright-0701@163.com.
Foundation item: The National Natural Science Foundation of China(No. 51408190).
Citation: Zhao Xing, Ren Gang, Zhang Xiaoli, et al. Optimization method for evacuation zone with network reconfiguration based on dynamic simulation[J].Journal of Southeast University(English Edition), 2016, 32(3):373-378.DOI:10.3969/j.issn.1003-7985.2016.03.019.