洪涝情景下城市交通影响仿真模拟研究  

Simulation study of flooding on urban traffic impact

作　　者：张爽 杜晓鹤[2] 邵薇薇[2,3] 栾清华[4] 路洁 苏鑫[2,3] ZHANG Shuang;DU Xiaohe;SHAO Weiwei;LUAN Qinghua;LU Jie;SU Xin(Changjiang Institute of Survey,Planning,Design and Research Corporation,Wuhan 430010;China Institute of Water Resources and Hydropower Research,Beijing 100038;State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,Beijing 100038;College of Agricultural Science and Engineering,Hohai University,Nanjing 210000;School of Geographical Sciences,Liaoning Normal University,Da Lian 116029)

机构地区：[1]长江设计集团有限责任公司,武汉430010 [2]中国水利水电科学研究院,北京100038 [3]流域水循环模拟与调控国家重点实验室,北京100038 [4]河海大学农业科学与工程学院,南京210000 [5]辽宁师范大学地理科学学院,大连116029

出　　处：《中国防汛抗旱》2022年第9期51-55,共5页China Flood & Drought Management

基　　金：国家重点研发计划课题(2018YFC1508203);国家自然科学基金项目(51979285)。

摘　　要：为分析城市洪涝对交通的间接影响,引入NetLogo仿真模型模拟受降雨影响的城市区域交通情况,模型构造了城市区域常见的双向四车道和六车道,通过变换道路上积水位置来模拟当道路起点、中段和终点出现积水时车辆的速度变化过程,揭示不同位置的道路积水对行车速度的影响程度。结果表明,当道路的起点、中段和终点出现积水时,行驶在双向四车道和六车道的车辆的行驶速度下降过程存在差异,但稳定后的最终速度趋于一致,另外,双向四车道道路起点存在积水时车速变化程度最大,双向六车道的道路中段存在积水时车速变化程度最小;积水出现在道路的不同位置时,双向六车道车辆的行驶速度变化过程较同等情景下的双向四车道速度变化过程平缓,研究成果可为城市洪涝对道路行车的影响研究提供有益参考。In order to analyze the indirect impact of flood on urban traffic, a model which named NetLogo is introduced to simulate the traffic situation of urban areas affected by rainfall. Two forms of traffic lanes, such as the two-way four traffic lanes and six traffic lanes, which are common in urban areas, are constructed by the model. By altering the different position of flooding on the road, such as at the starting point, the middle and the end of the road the changing process of vehicle speed can be observed at the same time. The results indicates that there are differences in the descent process of vehicle speed, when Vehicles traveling on the bidirectional four traffic lane and six traffic lane,but eventually the final speed tends to be same after stabilization. Otherwise, the maximum degree of vehicle speed variation appears when the flooding occurs at the starting point of bidirectional four traffic lane. the minimum degree of vehicle speed variation appears when the flooding occurs at the middle of bidirectional six traffic lane. The speed change process of vehicles traveling on the bidirectional six-lane is slower than that of the four-lane in the same situation when the flooding appears in different positions of the road. This study provides a useful reference for the research of the influence of urban flood on road traffic.

关 键 词：城市洪涝 NETLOGO 交通影响 行车速度 仿真模拟 

分 类 号：TU998.4[建筑科学—市政工程] U491[交通运输工程—交通运输规划与管理]