物流管理英文文献+翻译

Aninternet-basedlogisticsmanagementsystemforenterprisechainsN.Prindezis,C.T.KiranoudisSchoolofChemicalEngineering,NationalTechnicalUniversity,15780Athens,GreeceReceived13September2003;receivedinrevisedform20December2003;accepted27January2004Availableonline10December2004AbstractThispaperpresentsanInternet-BasedLogisticsManagementSystemtocoordinateanddisseminatetasksandrelatedinformationforsolvingtheheterogeneousvehicleroutingproblemusingappropriatemetaheuristictechniques,foruseinenterprisechainnetworks.ItsarchitectureinvolvesaJAVAWebappletequippedwithinteractivecommunicationcapabilitiesbetweenperipheralsoftwaretools.ThesystemwasdevelopedindistributedsoftwarefashiontechnologyforallcomputerplatformsutilizingaWebbrowser,focusingonthedetailedroadnetworkofAthensandtheneedsoftheAthensCentralFoodMarketenterprises.2004ElsevierLtd.Allrightsreserved.Keywords:Decisionsupportsystem;e-Logistics;Transportation;Vehicleroutingproblem1.IntroductionEnterprisechainsarethebusinessmodelofthepresentandfutureregardingmarketsthatinvolvesmallandmediumcompanysizes.Clearly,groupingactivitiestowardsafocusedtargetfacilitatesanunderstandablyimprovedmarketpenetrationguaranteedbyasuccessfultrademarkofaleadingcompanyinthefield.Severalcollaborationmodelsthatbasicallyincludefranchisingareintroducedasapartofthisintegratedprocess.Whensuchanetworkisintroducedinordertoexploitacommercialideaorbusinessinitiativeandsubsequentlyexpandedasmarketpenetrationgrows,severalmanagementissuesariseregardingtheoperationsoftheentirenetwork.SuchanetworkistheidealplacefororganizingandevaluatinginamorecentralizedwayseveralordinaryoperationsregardingsupplychainandlogisticsInfact,toolsdevelopedfororganizingmanagementprocessesandoperationalneedsofeachindividualcompany,canbedevelopedinamorecentralizedfashionandtheservicesprovidedbythetoolcanbeofferedtoeachnetworkmembertofacilitatetransactionsandtackleoperationssimilarly.Web-basedapplicationsareanidealstartingplacefordevelopingsuchapplications.Typicallysuchsystemsserveasacentraldepotfordistributingcommonservicesinthefieldoflogistics.Thecommercialapplicationisstoredinacentralserverandservicesareprovidedforeachmemberofthegroup.Aprototypeofsuchaserverisdescribedinapreviouswork(Prindezis,Kiranoudis,&Marinos-Kouris,2003).ThispaperpresentsthecompletedinternetsystemthatisinstalledinthecentralwebserveroftheAthensCentralFoodMarketthatdealswiththeintegratedproblemofdistributionfor690companiesthatcompriseauniquelogisticsandretailchainofenterprises.Theneedsofeachcompanyareunderlinedandthealgorithmsdevelopedaredescribedwithintheunifiedinternetenvironment.Theproblemsolvedandservicesprovidedforeachcompanyistheoneinvolvingdistributionofgoodsthroughaheterogeneousfleetoftrucks.Newinsightsofthemetaheuristicsemployedareprovided.Acharacteristiccasestudyispresentedtoillustratetheeffectivenessoftheproposedapproachforareal-worldproblemofdistributionthroughthedetailedroadnetworkofAthens.2.DistributionthroughheterogeneousvehiclefleetsThefleetmanagementproblempresentedinthispaperrequirestheuseofaheterogeneousfleetofvehiclesthatdistributegoodsthroughanetworkofclients(Tarantilis,Kiranoudis,&Vassiliadis,2003,2004).Therefore,thesystemwasdesignedinordertoautomaticallygeneratevehicleroutes(whichvehiclesshouldde-livertowhichcustomersandinwhichorder),usingrational,quantitative,spatialandnon-spatialinformationandminimizingsimultaneouslythevehiclecostandthetotaldistancetravelledbythevehicles,subjecttothefollowingconstraints:eachvehiclehasapredeterminedloadcapacity,typicallydifferentfromallothervehiclescomprisingthefleet(heterogeneousnature),thecapacityofavehiclecannotbeexceeded,asinglevehiclesupplieseachcustomersdemand,thenumberofvehiclesusedispredetermined.TheproblemhasanobviouscommercialvalueandhasdrawntheattentionofORcommunity.Itsgreatsuccesscanbeattributedtothefactthatitisaveryinterestingproblembothfromthepracticalandtheoreticalpointsofview.Regardingthepracticalpointofview,thedistributionprobleminvolveddefinitelyplaysacentralroleintheefficiencyoftheoperationalplanninglevelofdistributionmanagement,producingeconomicalroutesthatcontributetothereductionofdistributioncosts,offeringsimultaneouslysignificantsavingsinallrelatedexpenses(capital,fuelcosts,driversalaries).ItsImportanceinthepracticallevel,motivatedintensetheoreticalworkandthedevelopmentofefficientalgorithms.FortheproblembyacademicresearchersandprofessionalsocietiesinOR/MS,resultinginanumberofpapersconcerningthedevelopmentofanumberofVehicleRoutingInformationSystems(VRIS)forsolvingtheproblem.TheproblemdiscussedisanNP-hardoptimizationproblem,thatistosaytheglobaloptimumoftheproblemcanonlyberevealedthroughanalgorithmofexponentialtimeorspacecomplexitywithrespecttoproblemsize.Problemsofthistypearedealtwithheuristicormetaheuristictechniques.Researchonthedevelopmentofheuristicalgorithms(Tarantilis&Kiranoudis,2001,2002a,2002b)forthefleetmanagementproblemhasmadeconsiderableprogresssincethefirstalgorithmsthatwereproposedintheearly60s.Amongthem,tabusearchisthechampion(Laporte,Gendreau,Potvin,&Semet,2000).T