ITSWC0803pdf智能交通世界大会ITS智慧城市社区人工智能AI物联网IT报告课件教案.docx
- 文档编号:29096660
- 上传时间:2023-07-20
- 格式:DOCX
- 页数:5
- 大小:18.04KB
ITSWC0803pdf智能交通世界大会ITS智慧城市社区人工智能AI物联网IT报告课件教案.docx
《ITSWC0803pdf智能交通世界大会ITS智慧城市社区人工智能AI物联网IT报告课件教案.docx》由会员分享,可在线阅读,更多相关《ITSWC0803pdf智能交通世界大会ITS智慧城市社区人工智能AI物联网IT报告课件教案.docx(5页珍藏版)》请在冰豆网上搜索。
ITSWC0803pdf智能交通世界大会ITS智慧城市社区人工智能AI物联网IT报告课件教案
ITSWC201520150803.pdf智能交通世界大会ITS智慧城市社区人工智能AI物联网IT报告课件教案
1AtrafficsimulationmodelofpedestrianandvehicleforevacuationundernaturaldisasterHisatomoHanabusaGeneralManagerofTechnicalDepartment,i-TransportLab.Co.,Ltd.Shin-SurugadaiBLDG9F,3-10,Kanda-Ogawamachi,Chiyoda-ku,Tokyo,101-0052,JapanTEL:
+81-3-5283-8527,FAX:
+81-3-5283-8528,E-mail:
hanabusa@i-transportlab.jpTadashiKomiyaResearcher,i-TransportLab.Co.,Ltd.Shin-SurugadaiBLDG9F,3-10,Kanda-Ogawamachi,Chiyoda-ku,Tokyo,101-0052,JapanTEL:
+81-3-5283-8527,FAX:
+81-3-5283-8528,E-mail:
komiya@i-transportlab.jpRyotaHoriguchiCEO,i-TransportLab.Co.,Ltd.Shin-SurugadaiBLDG9F,3-10,Kanda-Ogawamachi,Chiyoda-ku,Tokyo,101-0052,JapanTEL:
+81-3-5283-8527,FAX:
+81-3-5283-8528,E-mail:
rhoriguchi@i-transportlab.jpMasaoKuwaharaProfessor,DepartmentofHuman-SocialInformationSciences,GraduateSchoolofInformationSciences,TohokuUniversityAoba6-6-06,Aramaki,Aoba-ku,Sendai,980-8579,JapanTEL:
+81-22-795-7492,FAX:
+81-22-795-7494,E-mail:
kuwahara@plan.civil.tohoku.ac.jpABSTRACTInthisstudy,wedevelopedatrafficsimulationframeworkofpedestrianandvehicletoevaluatetheevacuationplansundernaturaldisasters.Inthispaper,weintroducetheconceptofourframeworkandexplainthetrafficmodelandtheroadcrossingbehaviormodelofpedestrianandvehicleinthesimulation.Thisframeworkhasafunctiontobeattachedthedisastereventmodel(linkclosingandlaneclosing).Andtheevacuationbehaviormodelcanbeinstalleddependingonthepurposeoftheevaluationofevacuationmeasure.Asthefuturework,wehaveaplantoapplythisframeworktourbancityanddescribetheresultsofsomeevacuationplans.Keywords:
TrafficSimulation,Pedestrian,Vehicle,Evacuation,Naturaldisaster1.INTRODUCTIONInJapan,manyresearchesofevacuationplanundernaturaldisasterarestudiedonthebackgroundofourexperiencessuchastheGreatEastJapanEarthquakeandtheGreat2HanshinEarthquake.Oshimaetal.[1]evaluatedthetrafficmeasurestoreducethecongestioninTokyoonthedayoftheGreatEastJapanEarthquake.Ericketal.[2]andInnamietal.[3]installedTsunamieventmodeltotheirtrafficsimulationmodelandsimulatedtheevacuationofvehiclesandpedestrians.Inthecaseoftrafficsimulationstudy,itissaidthatthebehaviormodelsofvehicleandpedestrianunderdisasterhavebeenimplementedinatrafficsimulationmodelinrecentyears.However,theknowledgeabouttheunderstandingofthetrafficsituationbydisasterandtheeffectiveevacuationplanforlargearea(thewholeofcity)arefarfromaccumulated.Forexample,thelatescentbottleneckpointwhenthepeopleevacuatefromnaturaldisasterbyvehicleorbywalkshouldbeunderstand.Inthiscase,thetrafficdemandsforevacuationfromnaturaldisastershouldbeincludednotonlythevehiclesontheroadnetworkbutalsothepeopleinbuildings,homes,trafficfacilitiesandsoon.Ontheotherhand,theimpassableroadsbyfiredandcollapsedbuildingsandtheheavycongestionofvehiclesandpedestriansbytheconcentratedinboundtrafficshouldbeconsideredwhenwemaketheevacuateplantoguidethepeopletothesafetyplaces.Tounderstandtheseissues,thetrafficsimulationmodelwhichcandynamicallyreproducethetrafficcondition(especiallyqueuespillback,capacityreductionandgridlock)bynaturaldisasterisneeded.Anditisimportantthattheconflictingofvehiclesandpedestriansisoneoftheneedstoexpressthedisruptionofthetrafficflow.Therefore,wedevelopthetrafficsimulationframeworkwiththeconflictingmodelofpedestriansandvehiclestoevaluatetheevacuateplanfromnaturaldisaster.2.THECONCEPTOFSIMULATIONFRAMEWORKOurtrafficsimulationframeworkisdevelopedtoreproducevarioustrafficsituationsonroadtrafficundernaturaldisasterandtoevaluatetheeffectsofevacuationmeasures.Theframeworkhasthefollowingconcepts.Dynamictrafficsimulationmodelfortheregion-wideroadnetwork(10or20squarekm,upto10000links).Layeredroadnetworkstructureforseveralkindsoftrafficmodes.Interactivemodellingbetweenpedestrianandvehicle(linkcapacityreductionbythecrossingbehaviorofpedestrianandvehicle).Includingroutechoicebehaviorwithmany-to-manyODofpedestrianandvehicle.Disastereventmodel(linkclosureevent,laneclosureevent,destinationchangeevent,etc.)Figure1showsthetrafficsimulationframework.Theframeworkconsistsofthetrafficsimulationmodelintegratedpedestrianmodelandtrafficflowmodel,thedisastereventmodelandtheevacuationbehaviormodel.Thetrafficsimulationmodelincludesthecrossingbehaviormodelandtheinterfacestoaccepttheeventrequestsfromthedisastereventmodelandtheevacuationbehaviormodel.3Figure11:
SimulationFramework3.TRAFFICFLOWMODELANDPEDESTRIANMODELInthissection,weintroducethetrafficflowmodelandthepedestrianmodel.Forthetrafficflowmodel,wepreparedthetrafficsimulationmodelSOUND(aSimulationmodelOnUrbanroadNetworkswithDynamicroutechoice)[4].ThevehiclesinSOUNDisdiscretelymovedbasedontheNewellssimplifiedkinematicwavemodel[5][6]andcanbecontrolledbytrafficsignalandthelinkparameters(linkcapacity,jamdensity,freetravelspeed,saturationflowrate,numberoflane,etc.).SOUNDhastwotypesofroutechoicemodel(minimumcostchoicemodelandlogitchoicemodelbasedonDialsalgorithm).Ontheotherhand,thepedestrianmodelhasasimplemovingmodelbytheconstantspeedcontrolledbythedensity(numberofperson)oflinkreferredtoFundamentalDiagram(K-Vrelationship).ThepedestrianmodelisalsoinstalledthesameroutechoicemodelasSOUND.Figure22:
BasicIdeaofthepedestrianmodel4Figure3andFigure4showstheinteractivepointsbetweenvehicleroadnetworkandpedestriannetwork.Thetrafficflowmodelandthepedestrianmodelsharesomecrossingpointsoneachroadnetwork.Andthevehicleonthevehiclesroadnetworkperformsthestop-and-gobehaviourwhenthepedestrianonthecrossingpoint.Figure33:
InteractivepointsonroadnetworkFigure44:
Networkstructureandcrossingbehaviourinanintersection54.INPUTDATAFORSIMULATIONThebasicinputdataforthesimulationframeworkconsistoftheroadnetworkdata,zonedataandODtabledata(timeseriesforeachvehicle/persontype).Inaddition,thedisastereventdatasuchaslinkclosureevent(thesetofeventtime,closinglinkid)andtheevacuationbehaviordata(newODtableandDestinationdataforevacuation)areneededforthedisastersimulation.Thenewdestinationdataforevacuationcanbeusedthelocationdataoftheevacuationplacesuchasschoolandpark.Figure5showstheexampleofnetworkdataandzonedata,andFigure6showstheexampleofPOImapdata.Figure55:
RoadnetworkdataandzonedataFigure66:
ExampleofPOIdata(evacuationplace)65.CONFLICTIONBEHAVIORMODELInthisstudy,twobasicmodelstoexpresstheconflictionbehavioursbetweenvehiclesandpedestriansareimplemented.Figure7showstheconceptoftheconflictionbehavioursmodel.Thecrossingmodelhasafunctionthatvehicleisstoppedwhenpedestrianisexisted(walking)onthecrossingpointofvehiclesroadandpedestriansroad.Ontheotherhand,thecapacityreductionmodelhasafunctionthatthecapacityofvehiclesroad(link)isreducedwhenthedensityofpedestriansroad(link)ishigh(oneofsimulationparameters).Thissituationbythecapacityreductionmodelisassumedthefloodingofpedestrianbytheconcentratedtothepublicspacesuchastrainstation.Figure77:
ConflictionBehaviourModel6.EVACUATIONMODELThetrafficimpactbytheevacuationbehaviorcanbereproducedbythedestinationchangebehaviormodelandthedepartureselectionmodel(determinationofstartorstoptrip)forthevehicleandthepersonwhichisplannedtodeparturebeforethedisastereventoccur.Ifthevehiclesorthepersonsrunningontheroadnetworkiscaughtinthedisaster(linkclosureevent)suchastsunami,theyarestoppedthetripandcountedupastheresultofvictimsbythedisaster.Figure8showstheimageofthedisastereventmodelandtheevacuationbehaviorsinoursimulationframework.7Figure88:
ExampleofDisasterEventandEvacuationbehaviours7.EFFECTOFCONFLICTIONOFVEHICLESANDPEDESTRIANSFigure9showsthecalculationresultoftheeffecttovehicletrafficbypedestriantrafficinanintersection(Jimbocho-intersection)inTokyo.Inthiscasestudy,weverifiedthereductionpatternofthecapacityofvehicletrafficbythetrafficofpedestrian.Thetrafficvolumesofvehiclefromeachdirectionandthesignaltimingdataaresurveyedatpeaktimefrom9:
00to10:
00.Thesimulationiscalculatedwithshiftingthetrafficvolumeofpedestrianthroughtheintersection.Theconflictingbehavior(crossingofvehiclesandpedestrians)modelandthecapacityreductionmodel(vehiclesroad)bythepedestriansfloodingtothevehiclesroadareimplemented.Thetrafficvolumeandtheaveragespeedofvehiclearedeclineddrastically8incaseofover2019(pedestriantraffic).Themodelswillbevalidatedandimprovedcomparingtotherealdataasafuturework.Figure99:
EffecttoVehicleTrafficbyPedestrianinanIntersection8.FUTUREWORKForthenextstep,oursimulationframeworkwillbeverifiedusingtheverificationmanualfortrafficsimulationmodelwithdisasterandevacuationmodelbyJapanAssociationforEarthquakeEngineering[7](JAEE)beforetheapplicationtocasestudy.JAEEoffersthefiveoutputs(vehicle/pedestriangeneration,movingspeed,routechoice,impactoftrafficf
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ITSWC0803pdf 智能 交通 世界 大会 ITS 智慧 城市 社区 人工智能 AI 联网 IT 报告 课件 教案
![提示](https://static.bdocx.com/images/bang_tan.gif)
链接地址:https://www.bdocx.com/doc/29096660.html