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基于Agent的社会力模型实现及地铁通道行人仿真.docx

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基于Agent的社会力模型实现及地铁通道行人仿真 Agent-basedSocialForceModelImplementationandPedestrianSimulationinSubwayCorridors Introduction Urbanpopulationgrowtharoundtheworldhasledtoincreasingdemandformoreefficientpublictransportationsystems.Asaresult,subwaysystemshavebecomeanessentialpartofmanymoderncities.Subwaycorridorsarecomplexanddynamicenvironments,anddesigningthemtoensureefficientandsafepedestrianflowiscrucial.Thisiswherepedestriansimulationmodelsandagent-basedsocialforcemodelscomeintoplay.Thepurposeofthispaperistoexploretheimplementationofanagent-basedsocialforcemodelinpedestriansimulationinsubwaycorridors. Background Pedestrianmodelingandsimulationareessentialtoolsindesigningpublicspacessuchassubwaycorridors.Severalmodelsexist,includingdiscreteeventmodels,cellularautomatamodels,andagent-basedmodels.Agent-basedmodelsarethemostpopular;theysimulatehuman-likebehaviorsandarebettersuitedforcomplexscenariossuchasthoseinsubwaycorridors. Thesocialforcemodelisawidelyusedagent-basedmodelthatcansimulatepedestrianbehaviorinavarietyofsituations.Inthismodel,pedestriansaretreatedasagentswhonavigatethroughtheirenvironmentbasedonexternalforcesappliedtothem.Theseforcesincludeinteractionforcesbetweenpedestrians,attractionandrepulsionforceswithenvironmentalfeatures,andfrictionalforcesthatoccurwhenapedestrianmoves. Methodology Theimplementationofthesocialforcemodelinthisstudyinvolvedthreemainsteps.First,datawerecollectedfromarealsubwaycorridorinacityinChina.Thedataincludedpedestrianmovementtrajectories,thewidthofthecorridor,andthepositionofenvironmentalfeaturessuchaswallsandobstacles.Second,thedatawereusedtocreateavirtualmodelofthesubwaycorridor.ThevirtualmodelwascreatedusingvisualprogrammingsoftwarecalledGrasshopper,whichwasinterfacedwiththeRhinosoftwaretocreateandrenderthe3Denvironment.Finally,thesocialforcemodelwasimplementedinthevirtualmodeltosimulatepedestrianmovements. Results Thesimulationresultsshowedthatthesocialforcemodelcouldaccuratelysimulatepedestrianmovementinthesubwaycorridor.Specif