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【英文标准名称】:StandardPracticeforComputingRideNumberofRoadsfromLongitudinalProfileMeasurementsMadebyanInertialProfileMeasuringDevice
【原文标准名称】:通过用惯性纵剖面测量装置做的纵剖面测量来计算道路承载值的标准方法
【标准号】:ASTME1489-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E17.33
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:longitudinalprofile;meanpanelratings(MPR);panelrating;pavementridequality;profileindex;rideability;ridenumber(RN);subjectiveridequality;subjectiveridequalityestimate;Inertialmeasurement;Longitudinalprofile;Meanpanelrating(M
【摘要】:Thispracticeprovidesameansforobtainingaquantitativeestimateofapavementpropertydefinedasridequalityorrideabilityusinglongitudinalprofilemeasuringequipment.TheRideNumber(RN)isportablebecauseitcanbeobtainedfromlongitudinalprofilesobtainedwithavarietyofinstruments.TheRNisstablewithtimebecausetrueRNisbasedontheconceptofatruelongitudinalprofile,ratherthanthephysicalpropertiesofparticulartypeofinstrument.Ridequalityinformationisausefulinputtothepavementmanagesystems(PMS)maintainedbytransportationagencies.Thesubjectiveridequalityestimateproducedbythispracticehasbeendetermined(6)tobehighlycorrelated(r=0.92)withmeasuredsubjectiveridequalityandtoproducealowstandardestimateoferror(0.29RNunits)fortheridequalityestimate.Thesubjectiveridequalityestimatesproducedbythispracticewerefoundtobenotsignificantlydifferentwithrespecttopavementtype,roadclass,vehiclesize,vehiclespeed(withinpostedspeedlimits),andregionalityovertherangeofvariablesincludedintheexperiment(1,2,3,and4).Thesubjectiveridequalityestimatesproducedbythispracticehavebeenfoundtobegoodpredictorsoftheneedofnon-routineroadmaintenanceforthevariousroadclassifications(3).Theuseofthispracticetoproducesubjectiveridequalityestimatesfrommeasuredlongitudinalprofileeliminatestheneedforexpensiveridepanelstudiestoobtainthesameridequalityinformation.1.1Thispracticecoversthemathematicalprocessingoflongitudinalprofilemeasurementstoproduceanestimateofsubjectiveridequality,termedRideNumber(RN).1.2Theintentofthispracticeistoprovidethehighwaycommunityastandardpracticeforthecomputingandreportingofanestimateofsubjectiveridequalityforhighwaypavements.1.3ThispracticeisbasedonanalgorithmdevelopedinNationalCooperativeHighwayResearchProject(NCHRP)1x2013;23(1and2),twoOhioDepartmentofTransportationridequalityresearchprojects(3and4),andworkpresentedinRefs(5and6).1.4ThecomputedestimateofsubjectiveridequalityproducedbythispracticewasnamedRideNumber(RN)inNCHRPResearchProject1x2013;23(1and2)todifferentiateitfromothermeasuresofridequalitycomputedfromlongitudinalprofile.Eq1ofSection8.2representsthemathematicaldefinitionofRideNumber.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P66
【国际标准分类号】:93_080_99
【页数】:16P.;A4
【正文语种】:英语