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38220083()JOURNALOFSOUTHEASTUNIVERSITY(NaturalScienceEdition)Vol138No12Mar.2008112(1,210096)(2,467000):,.(Greenshields)2,2;,;,,;.:(CO),(NO2),,,.,,.:;;;;:U491:A:1001-0505(2008)0220309205EnvironmentaltrafficcapacityoflinksectionofurbanstreetLiTiezhu1ZhuZhigao1TianXinxian2(1SchoolofTransportation,SoutheastUniversity,Nanjing210096,China)(2PingdingshanEducationCollege,Pingdingshan467000,China)Abstract:Combiningthetrafficcapacityofurbanroadswiththeairqualitycontrolinurban,thepa2perpresentstheconceptofenvironmentaltrafficcapacity.OnthebasisoftheGreenshieldslinearmodelofspeedanddensity,thefunctionofspeedandvolumeisattained,andtherelationbetweentheconcentrationofpollutantsemittedbyvehiclesandtrafficvolumeisalsogotbasedontherelationbetweenthevehicularemissionfactorandthedrivingspeedofvehicle;Theoptimalmodelwhoseobjectiveisthemaximumoftrafficvolumeisdevelopedusingthenon2linearprogrammingtheory,withthemainconstraintsbeingthetrafficcapacityandthepollutantspconcentrationinairqualitystandard.Atthesametime,thesolutionmethodispresentedwiththeGeneralizedLagrangeMulti2pliersmethod.Acasestudyshowsthatthetrafficvolumeofdifferentvehiculartypeunderthecon2troloftheconcentrationofcarbonmonoxideisverydifferentfromthatunderthecontrolofthecon2centrationofnitrogendioxide,especiallyminicars,mid2sizevehiclesandbuses;andconsequently,theenvironmentaltrafficcapacityismuchsmallerthanthephysicaltrafficcapacityofroad,whichiscausedbythedifferenceofemissionfactorofdifferenttypeofvehicles.So,reasonabletrafficstruc2tureisbeneficialnotonlytotheincreaseoftrafficcapacityofroadbutalsototheprotectionoftheairqualityinurban.Keywords:vehicularemissionfactors;airquality;trafficcapacityonlink;environmentaltrafficcapacity;trafficstructure:2007209217.:(1971),,,,litiezhu@seu.edu.cn.:(50778041,50478071)(XJ0521206).:,,.[J].:,2008,38(2):3092313.(CO)(HC)(NOx),7118%,7219%3318%[1].CONOx,(O3),.,70%CONOx,,NOx.,21.,,[224],.,,,,.1,.,[526].111CO,NOxHCSO2(RCHO).(NO2).[2000]1(GB30951996),.1980,[2],NOxCO,0197301702.NOx,NO2,(NO).NO2CO.112GB518158,,,,.,,[7].,.[8].113,.,,CO,NOx7411%4518%,NOx8817%.114NOx,,NOxNONO2[9].115.,.,1984CALINE4,,[10].,OSPM,,[11].2211,,.,,.:maxf(x)(1)s.t.g(x)0013()38,f(x),g(x)=(g1(x),g2(x),,gs(x)).gi(x)(i=1,2,,s)XRn;f(x);g(x),.212L,N,jVj.[12]Vpcu=mj=1Vjj(2),jj;m.kQkQk=mj=1EjkVj3600(3),Ejkjk.,,OSPM.kCk[11].[8],Ejk=e(u).22Vpcu=NKJu-u2uf(4),KJ;u;uf.(2)(4)KJ(u-u2/uf)=1Nmj=1Vjj.u=uf12+14-VpcuNufKJ(5)(3)(5)OSPM[11]Ck=Qkd1sinL(wtd2+dd3)+2/Lwlnwd1/b+h0h0(6)Ck,Ck=Cskpk,Cskk;pkk.,,CkCk.,.,Cs[12],Cs,mj=1VjkjCs(7),Vjkkj.,,,,jTjTmaxjTminj.,:Vpcuk=maxmj=1Vjkj(8)s.t.CkCkmj=1VjkjCsTminjTjTmaxjVj0,CET=mj=1min{Vjkj,k=1,2,}(9),CET.3311(8),,,,[13],:(8):minxRnL(x,Ml,vl)=Vpcuk+12Mlwl=1{[max(0,(v(l)i-Mlgi(x)))]2-(v(l)i)2};x(0),v1,M10,1,0,(0,1),l=1;:x(l-1),1132,:x(l);:g(x(l)),x(l);;:g(x(l))g(x(l-1))Ml+1=Ml,;,Ml+1=Ml;:v(l+1)i=v(l)i-Mkgi(x(l)),i=1,2,3,,nl=l+1,.312,16m,,17m,,,.,,,,,,600m.Cs=3580pcu/h,uf=60km/h,KJ=120pcu/km.()().(GB5022095)110,210,112,016.016018,011012,01040108,0105011.NOxNONO299%,1%,[9].=60,b=018m/s,L=16m,H=17m,216m/s,t=216m/s.[11],r=1,=011,w0=011m/s,h0=2m.d1=18148m,d2=17m,d3=0173m,w=0113,wt=0125,d=0181m/s.NOxp1,p1=01887,COp2=01741.NO21999,NO20124mg/m3,CO1010mg/m3,CET=3202pcu/h,1.1/(vehh-1)/(vehh-1)/(vehh-1)/(vehh-1)/(pcuh-1)CO24581602553193499NO223032671384763580230316013831932024,,.,.,,;,OSPM,,,;OSPM,,OSPM.,.,.2,,,.,,.(References)[1],.[J].,2006,26(1):26228.YangYujie,SongWeiqiang.Discussionontrafficpol2lutionalongbothsideofmaintrafficartery[J].Liaon2ingUrbanandRuralEnvironmentalScience&Technolo2gy,2006,26(1):26228.(inChinese)[2].[J].:,2004,24(5):94298.ChenJixia.Modelofurbanenvironmentaltraffic[J].JournalofChangpanUniversity:NaturalScienceEdi2tion,2004,24(5):94298.(inChinese)[3],,.[J].,2005,5(4):53256.WangZhenbao,QuPan,ChenYanyan.Theanalysisofmicrocosmicenvironmentaltrafficcapacity[J].Com2213()38municationandTransportationSystemsEngineeringandInformation,2005,5(4):53256.(inChinese)[4]IrvingP,MoncrieffI.Managingtheenvironmentalim2pactsoflandtransport:integratingenvironmentalanaly2siswithurbanplanning[J].ScienceofTotalEnviron2ment,2004,334(5):47259.[5],.[J].:,2006,26(6):78281.ChenJixia,DongZhi.Environmentalfactorsinurbanenvironmentandtrafficcapacity[J].JournalofChangpanUniversity:NaturalScienceEdition,2006,26(6):78281.(inChinese)[6],.[J].:,1999,29(1):82286.MaGuang,HuRenlu.Apreliminarystudyonthemod2elofenvironmentalcapacityinurbanplanning[J].JournalofSoutheastUniversity:NaturalScienceEdi2tion,1999,29(1):82286.(inChinese)[7],,.[J].,2005,5(2):90297.LiTiezhu,WangWei,LiXiugang.Impactanalysisofmotorvehiclesonairpollutioninurbantransportplan2ning[J].CommunicationandTransportationSystemsEngineeringandInformation,2005,5(2):90297.(inChinese)[8]MargiottaRA.Improvedvehiclespeedestimationpro2ceduresforairqualityandplanningapplication[D].DepartmentofCivilEngineering,TheUniversityofTennessee,1996.[9],,,.[M].:,2002:2202317.[10]BensonPE.CALINE4adispersionmodelforpre2dictingairpollutantconcentrationsnearroadways[S].Sacramento:CaliforniaStateDepartmentofTransportation,1984.[11].[