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1、AbstractInordertorealizeurbantrafficlevelimprovingasawhole,majorcitiesfastroadsalsodeveloprapidly.Inurbanexpressway,theapplicationofcloverleafinterchangeisrelativelycommonduetoitscontinuousandnaturaltrafficandbeautifulsymmetricalmodeling.Inordertoeliminateinterw
2、eaveonthetrunkline,avoiddoubleexportsandmakethemarksimplified,improvethetrafficcapacityanddrivingsafety,weoftensetcollector-distributorroadwithinthecloverleafinterchangelayoutontheoutsideofmainentrancestoarrangementtheinwardandoutward,weavingsectiononthecollecto
3、r-distributorroad,soitbecomesacloverleafinterchangewithcollector-distributorroad.Thecorrespondingtechnicalrequirementsofthesettingofcollector-distributorroadarenotspecifiedincurrentdesignspecifications,sothisarticleconductstheresearch,providetheoreticalbasisandr
4、eferenceforthereasonabledesignThroughanalysingthecomposition,types,interchangetrafficcharacteristicsandtrafficcapacityandservicelevelofcollector-distributorroadinthecloverleafinterchange,thisarticleputsforwardthatthenecessityofsettingcollector-distributorroadisd
5、eterminedbytheanalysisservicelevelofweavingareaandsomeotherfactorswhichaffectthesettingofthecollector-distributorroad.Consideringsettingcollector-distributorroadthroughtheanalysisofthevariousfactorswhichaffectthesettingofthecollector-distributorroadthisarticlepu
6、tsforwardthedeterminationmethodofeachcomponentofthecollector-distributorroad,includingthelengthcalculationofthedistributinglanesinterweavearea,gradualchangesectionlength,andthegradualrampfeederlanelength,cross-sectionallayoutmethod,andthecontrolofinterchangeland
7、.FinallythroughanalysingdesignparametersoftheTaiyiinterchangeatXi'ansouthsecondringroadandthroughtheon-the-spottrafficvolumeandtrafficcapacityconditionobservationandrecords,thisarticleusetheVISSIMsimulationmodelcarringonthesimulationtoTaiyiinterchangeandfindthet
8、rafficconditionsisinconformitywiththeactual.Usingthesettingmethodofcollector-distributorroadproposedinthispaper,wesetthecollector-distributorroadlaneonbothsidesofTaiy
