I摘要铁路运输在运输业的地位日益提高，为了满足我国用铁路运输货物的需求，也为了增强铁路运输在交通运输业方面的竞争力，铁道部提出了建设铁路大型装车点的战略。铁路大型装车点的合理建设，是铁路货运集中化的重要举措，同时也推进了铁路货运的发展进程。因此，解决铁路大型装车点选址问题对于铁路运输业的发展具有深远的现实意义。从数学的角度出发，铁路大型装车点选址问题可转化为多目标最优化问题。本文主要通过多目标规划法解决铁路大型装车点选址问题，在多目标规划理论基础上，建立选址模型后，运用Lingo软件求解，得出了该模型可行的结论。研究表明，若使用本文中的模型对铁路大型装车点的选址进行规划，可以减少铁路货物运输的费用，促进铁路货运业务的发展，解决了运输业一大难题。关键词：多目标规划；数学模型；分层序列法AbstractThestatusofrailwaytransportationinthetransportationindustriesincreasingdaybyday.Inordertomeettheneedsofourcountry'srailwaytransportationofgoods,andinordertoenhancethecompetitivenessofrailwaytransportationinthetransportationindustry,theMinistryofRailwayshasputforwardthestrategyofbuildingalargerailwayloadingpoint.Thereasonableconstructionoflarge-scalerailwayloadingpointisanimportantmeasureofrailwayfreightcentralization,andalsopromotesthedevelopmentprocessofrailwayfreighttransportation.Therefore,itisoffar-reachingpracticalsignificanceofthedevelopmentofrailwaytransportationtosolvethelocationproblemoflarge-scaleloadingpoint.Fromthemathematicalpointofview,thelocationproblemoflargerrailwayloadingpointcanbetransformedintoamulti-objectiveoptimizationproblem.Basedonthetheoryofmulti-objectiveprogramming,thelocationmodeloflarge-scalerailwayloadingpointisestablishedandsolvedbyLingosoftware,andafeasibleconclusionisobtained.Theresearchshowsthatifweusethemodelinthispapertoplanthelocationofthelarge-scaleloadingpoint,wecanreducethecostofrailwayfreighttransportation,promotetheIIdevelopmentofrailwayfreighttransportation,andsolveabigprobleminthetransportationindustryKeywords：Multi-objective-programming;Methematicalmodel;HierarchicalsequencemethodIII目录1导论.........................................................................................................................................12相关概念界定及理论基础.......................................................................................................12.1多目标规划的定义...............................................................................................................12.2多目标规划的一般模型形式...............................................................................................12.3多目标规划模型建立的一般步骤.......................................................................................12.4多目标规划的基本方法.......................................................................................................22.5铁路大型装车点选址问题相关理论基础...........................................................................22.5.铁路大型装车点选址问题的内涵......................................................................................42.5.铁路大型装车点选址规划的结构......................................................................................43基于多目标规划的铁路大型装车点选址模型设计...............................................................83.1基本模型假设.......................................................................................................................83.2定义相关变量........
