摘要
Inthispaper,wecarryoutananalysisofthestructuralpropertiesofthesolutionstothespeedgradient(SG)trafficflowmodel.Undertheconditionthattherelaxationeffectcanbeneglected,itisshownthata1-shockora1-rarefactionisassociatedwiththefirstcharacteristic,butontheotherhand,acontactdiscontinuityratherthana2-shockora2-rarefactionisassociatedwiththesecondcharacteristic.Sincetheexistenceofa2-shockor2-rarefactionviolatesthephysicalmechanismofthetrafficflow,theSGmodelismorereasonable.Iftherelaxationeffectcannotbeneglected,itissomewhatdifficulttocarryouttheanalyticalanalysisandthenumericalsimulationresultsshouldbeobtained.
出版日期
2004年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)