地下集装箱运输对城市集疏运体系的影响分析

地下集装箱运输系统能够改善城市的空气雾霾状况,缓解地面交通的拥挤压力,逐渐成为新的研究热点。构建可选路径初始网络图,利用k最短路径算法求得备选路径。引入非直线系数作为最优路径的最终判定方法。在港口集装箱吞吐量预测基础上,以运输时间、运输费用、中转时间和碳排放量为影响因素构建路径评价组合模型。以外高桥港为例,使用MATLAB仿真求解。结果表明,地下集装箱运输系统的建立,不仅降低承运人的运输费用,也提高陆向集疏运效率,同时缓解港区道路拥挤,改善港区的空气水平。为地下集装箱运输系统的发展提供相关参考。

ANALYSIS OF INFLUENCE OF UNDERGROUND CONTAINER TRANSPORTION ON URBAN COLLECTION AND DISTRIBUTION SYSTEM

The underground container transportation system can improve the air haze in the city and relieve the congestion pressure of the ground traffic,which gradually becomes a new research hotspot.We constructed the initial network map of the alternative path,adopted the k-shortest path algorithm to obtain the alternative path,and used the non-linear coefficient as the final decision method of the optimal path.On the basis of port container throughput forecast,path evaluation model was constructed with the influencing factors of transportation time,transportation costs,transit time and carbon emissions.Taking Waigaoqiao port as an example,we used MATLAB simulation to solve the problem.The results show that the establishment of an underground container transportation system can not only reduce the carrier’s transportation costs,but also improve the efficiency of land-to-land collection and distribution.It alleviates road congestion and improves the air level in the port area.It can provide relevant reference for the development of underground container transportation system.