Research on the optimization method for metro freight network layout based on simulation
HU Wenhu
YIN Weichuan
Hu Lin
Abstract：This study proposes a Metro Freight Network Layout Mathematical Optimization Model(MFNLMOM)to address the issue of urban freight transportation by utilizing the idle capacity of metro and suburban railway lines.It integrates metro,suburban railways,and road networks.First,a multi-objective mathematical optimization model for metro freight network layout is developed,com-prehensively considering factors such as transportation costs,node reconstruction and expansion costs,investment expenses,transfer frequencies,and carbon emission costs.The model aims to mini-mize overall freight costs and transportation time.Next,passenger flow,freight flow,and metro op-eration logic modules are designed and simulated using Anylogic software to obtain transfer arc seg-ment data within the freight network.Finally,the Gurobi mathematical optimization solver is em-ployed to allocate freight network traffic flow.This is followed by a sensitivity analysis of carbon emis-sion costs,transfer costs,and trans-portation costs.The research findings demonstrate that,com-pared to traditional road transportation schemes,the metro freight network demonstrates significant ad-vantages,reducing total costs by 55.08%and transportation time by 44.24%.Additionally,compared to the full-station transfer model,the MFNLMOM partial-station transfer model achieves higher com-putational efficiency.
Keywords：integrated transportationnetwork layoutGurobi mathematical optimization solverAny-logic simulationmetro freight
Publication Date：2025-02-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 90-99 )