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:2004210220.:(19682),,;,(430074).:(70173014).1,223(1.,430074;2.,100044;3.,430070):,,,,.,,..:;;;:F540.57:A:167227037(2005)02200192042003,180.98km,.2.97km,27.16km,15%.20034136,90%[1].,(),.,,,,.1,.[27],,,[8]:,;,,;;,,;,.,,..,,.2,,.a..,;,;.b.,.c.,.22220056()J.ofHUST.(UrbanScienceEdition)Vol.22No.2Jun.2005©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,.d.,,.,,,.,,,.e.,.,,,,,.3,...,.,,(OECD,OrganizationforEconomicCoopera2tionandDevelopment),.,1998(AASHTO,theAmericanAssociationofStateHighwayandTransportationOfficials),,10.(FHWA,TheFederalHighwayAdministration)19992,..AASHTOFHWA.1996,,.AASHTOFHWA(NCHRPProject),,.(APWA,theAmericanPublicWorksAssociation)(CERF,theCivilEngineeringResearchFoundation)(NSTC,theNationalScienceandTechnologyCouncil)(TRB,theTransportationResearchBoard),..,.44.1.,,.:,,,;,,,;..;;.4.2,.,,,,,,.,,.,,,.,,.,02()2005©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved..4.3...,.,.,,.,,.,,.,.()().,.,,.4.4..,.,.,.,,,,,,.,,.,,.,....,,,,..4.5.,,,,,,,.,.122:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved...,...55.1,,.(1).15.2a..,.:,..,,,,;,,,,..b..,.:,,.,,..,,,,.,.[1],2003[R].:,2004.[2]FederalHighwayAdministrationOfficeofAssetManagement.Assetmanagementprimer[R].U.S.DepartmentofTransportation,1999.[3]NormanHDanylo,AndrewLemer.Assetmanage2mentforthepublicworksmanager:challengesandstrategies-findingsoftheAPWAtaskforceonassetmanagement[EBöOL].http:www.apwa.netödocumentsöresourcecenteröampaper.rtf,1998208231.[4]OrganizationforEconomicCooperationandDevelo2pment.Assetmanagementfortheroadssector[R].Paris:RenoufPubCo.Ltd,2001.[5]TransportationAssociationofCanada.Primeronhighwayassetmanagementsystems[R].Canada:TransportationAssociation,1999.[6]RichardABelle.ThePAIRInitiative,PublicRoads[EBöOL].http:www.tfhrc.govöpubrdsönovdec99önovdec99.htm,2004210211.[7]GovernmentofVictoria.AssetManagementSeries[EBöOL].http:home.vicnet.net.auöassetmanöwelcome.htm,2004210201.[8]CambridgeSystematicsInc.Synthesisofassetma2nagementpractice[R].CambridgeSystematics,Inc,2002.(26)22()2005©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.EvaluationofSandLiquefactionPotentialBasedonSOFMNeuralNetworkZHAOSHENG2li1,2ZHAOHONG2ying3LIUYan2(1.Schoolofmanagement,TianjinUniv.,Tianjin300072,China;2.SchoolofRuralandUrbanConstruction,HebeiAgriculturalUniv.,Baoding071001,China;3.SchoolofMachine,NorthChinaElectricPowerUniv.,Baoding071003,China)Abstract:Self2organizationFeatureMapping(SOFM)neuralnetworkisappliedtoevaluatesandliquefactionpotential.Basedonthecase2historicdataandtheprofessionalnorms,theSOFMnetworkmodelwithseveninputparametersandfouroutputsortsissetuptoevaluatesandliquefactionpotential.ThetestingresultsofpracticalexamplesshowthatthemethodbasedonSOFMneuralnetworkforevaluatingsandsliquefactionpotentialisfeasibleandeffectiveandhasgainfineresults,whichprovidesanewapproachtoresearchsandsliquefactionpotential.Keywords:self2organizationfeaturemapping(SOFM);neuralnetwork;sandsliquefactionpotential;evaluation(22)StudyofRoadTransportationAssetManagementSystemZOUZhi2yun1,2MAOBao2hua2GUOZhi2yong3(1.SchoolofTrafficSci.&Eng.,HUST,Wuhan430074,China;2.SchoolofTraffic&Transportation,BeijingJiaotongUniv.,Beijing100044,China;3.SchoolofTransportation,WUT,Wuhan430070,China)Abstract:Roadassetistheimportantcomponentofnationalincomeandtheimportanteconomicassetinsociety.Tighteningupthemanagementofroadtransportationassetcanincreasethebenefitoftransportationestablishment.Thedefinitionandconnotationofroadtransportationassetareexpatiated.Onthebasisofresearchforoverseasroadtransportationassetmanagement,themajormatterofroadtransportationassetmanagementsystemisputforward.Itincludesfiveaspects:generaldesignofsystem,goalsandpolicyofassetmanagement,assetcheckandevaluate,assetoptimize,assetwarningsystemandinvestmentdecision.Theframeworkofroadtransportationassetmanagementsystemissetup.Keywords:roadtransportation;transportationasset;managementsystem;framework62()2005©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.