软件在高速公路交通量预测中的应用 TransCAD

:2005-09-06:(1979-),,,.TransCAD(,110005):TransCAD,TransCAD,,TransCAD.:TransCAD;;;:TP317;U491:B:1673-1603(2005)04-0064-04TransCADCaliper(GIS),.,Tran2sCAD.TransCAD,,,.Tran2sCADGIS,.1TransCAD[1]1)(Planning)..;;Logit,,LogitLogitLogitLogit;.OD,TripsTranplanEMME/2.2)(Networks/Paths).,:.,..,..,.3)(Routing/Logistics)....:.4)(Transit).,,OD,.5)(RouteSystems).TransCAD,,,,.6)(Statistics).,,.7).TransCAD,:14200512()JournalofShenyangInstituteofEngineering(NaturalScience)Vol11No14Dec.2005©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.).TransCAD1GIS(GISDK),GISDK,,,OLE2.0DDE,VBVCC++(Excel).2TransCAD,,,,,.,TransCAD.2.1,12,6,6.TransCAD,4..12.GIS(),,,,12,.2.2,.,,Tij=PiAjf(cij)6allzoneAxf(cix)()Tij=AiPif(cij)6allzonePxf(cix)(),:(),(),.14:TransCAD65©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:.,.,OD.2.3,OD,OD,.TransCAD,,minZ(X)=6X0t(w)dwSubjectto:6frs=qrsPr,sfrsf0Pr,sX=6r6s6kfrsrs,PXaa;taa;ta(.)a,ta=ta(Xa);frsfr,sODk;rs,0-1,a3r,sODk,rs,=1,rs,=0;qrsrsOD.:t=tf[1+(V/C)]t;tf;V;C;,=0115=4.4,5.453,TransCAD,.(69)66()200512©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1],,,.[J].,2002(1).[2],,.[J].,2003,30(4):16.[3],,.DDS[J].,2002,28:50.Measuremethoddesignofhigh2accuracydigitalphaseplacebasedonSTC89C52XUEJian2guo,HUANGLi2Hong,ZHENGZhi2xia,LINZhen2heng(DepartmentofElectronics&InformationEngineering,PutianUniversity,Putian351100,China)Abstract:Obtainstimeintervaloftwosignalspassingzeropointbyoverzeroexaminingphase,calculatesthequantityofpulseofthetimeintervalbymeasurementcircuitcombiningthepulsepackmethoedwithone2chipcomputer,getsthephaseplacedifference.Introductionofthedoublefrequencycircuitofphase2lockedmakesthebenchmarkpackpulsechangewithsignalfrequency,thuseliminatestheerrorcausedbyfrequencychange.Switchesthesamplingpass2waybydataselector,realizesthecompensationforzeropointexcursion.TakingSTC89C52high2speedone2chipcom2puterandphaseplaceexeminingcircuitascorerealizesthissystem,themeasurementprecisionofphaseplaceis0102.Keywords:overzeroexaminingphase;doublefrequencyofphase2locked;phaseplacemeasurement;high2speedone2chipcomputer(66),.GIS,TransCAD,,.[1],.TransCAD[J].,2003(6).[2]CaliterCoparation.TransCADTransportationGISSoftware(TravelDemandModelingwithTransCAD4.7)[M].Ameri2ca:CaliterCorporation,2004.[3],.TransCAD:[M].:,1997.[4],.TransCAD[J].,2002(5):118-122.ApplicationofTransCADsoftwareonforecastingthetrafficvolumeoffreewayYAOHong-wei(PlanningDivision,LiaoningProvincialCommunicationsSurveyandDesignInstitue,Shenyang110005,China)Abstract:IntroducesthecharacteristicsandfunctionsofTransCADsoftware,forecaststhefuturepropertiesandan2nualtrafficvolumeofDaYaowanfreewaybyit.ApplicationprocessshowsTransCADsoftwareisagoodappliedsoft2warefortransportationplanning.Keywords:TransCAD;trafficvolumeforecast;freeway;transportationplanning14,:STC89C5269©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.