基于系统动力学的城市货车限行问题研究

发布时间：2019-05-16 23:53

【摘要】：为了分析货车限行政策对城市的影响,运用系统动力学理论,建立了城市经济、城市货运成本、城市交通出行、城市环境各子系统之间相互影响和作用的反馈机制。设计了系统流图,并结合变量之间量化公式的构造,构建了城市货车限行政策的系统动力学模型。以昆明市的货车限行政策为例进行了仿真模拟。仿真结果表明:城市不应该对货运车辆实行全天限行,单纯对货运车辆进行限行对于解决城市交通拥堵作用有限;货车限行后所带来的"客改货"车辆将会增加城市道路上的机动车数量、降低货车的运输效率、提高物流成本和加剧环境污染等。最后,针对仿真结果提出了相应的解决措施:完善城市物流园区等基础设施;推行共同配送模式;大力发展新能源城市配送车辆完成城市配送。
[Abstract]:In order to analyze the influence of freight car traffic restriction policy on the city, the feedback mechanism of the interaction and interaction among the subsystems of urban economy, urban freight cost, urban traffic travel and urban environment is established by using the theory of system dynamics. The system flow diagram is designed, and the system dynamics model of urban freight car traffic restriction policy is constructed combined with the construction of quantitative formula between variables. Taking the traffic restriction policy of freight cars in Kunming as an example, the simulation is carried out. The simulation results show that the city should not impose all-day traffic restrictions on freight vehicles, and the traffic restrictions on freight vehicles alone have limited effect on solving urban traffic congestion. The "passenger and cargo" vehicles brought about by the traffic restrictions of freight cars will increase the number of motor vehicles on urban roads, reduce the transportation efficiency of freight cars, improve logistics costs and aggravate environmental pollution, and so on. Finally, according to the simulation results, the corresponding solutions are put forward: perfecting the infrastructure such as urban logistics park; promoting the common distribution mode; vigorously developing the new energy urban distribution vehicles to complete the urban distribution.
【作者单位】：昆明理工大学交通工程学院;
【分类号】：N941.3;U491.4

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