作　　者： ; ; ;

机构地区： 吉林大学汽车工程学院汽车动态模拟国家重点实验室

出　　处： 《交通运输工程学报》 2011年第2期114-120,共7页

摘　　要： 分析了城市内部各向车流冲突造成的车辆延误对疏散与救援决策的影响,将交叉口控制参数引入到现有的基于元胞传输模型的应急疏散救援仿真模型中,建立灾时交叉口紧急控制下的应急疏散救援仿真模型。改进后的模型以规划周期内疏散与救援加权行程时间最小为目标,并引入反流策略。仿真结果表明:由于低优先级的车流G1和G2让行高优先级车流G3和G4而产生延误,其平均行程时间分别增加了10.0、11.1 s,符合城市内部疏散与救援的实际情况;反流策略实施后,受益的车流G2和G4行程时间分别下降了6.5、6.0 s。可见,提出的模型及反流策略有效。 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.6 tabs,3 figs,16 refs.

关 键 词： 元胞传输模型 动态交通分配 交叉口紧急控制 整数规划 反流策略

领　　域： [交通运输工程] [交通运输工程]