简介：Basedonthepropertiesoftraffic,macroscopicdynamicequationsaresetuptosimulatetheflowoftraffic.Besidesrelaxationtermandcompressibilityterm,achangeableareatermiscomposedinthemodeltodescribetheeffectofcarparking,tollbooth,trafficincidents,roadgradingandbicyclesontrafficflow.Withnumericalmethod,threecasesarepresentedtosimulatethechanginglaneareawithtimeandspaceandthepropagatingprocessofhightrafficdensity.Theresultsshowthatthedynamicmodelcanreasonablydescribetheevolutionoftrafficstatesinvariouscomplicatedoccasions.
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