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【英文标准名称】:StandardSpecificationforArchivingITS-GeneratedTrafficMonitoringData
【原文标准名称】:交通监控数据生成及归档的标准规范
【标准号】:ASTME2665-2008
【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】:E17.54
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:intelligenttransportationsystems;trafficdata;trafficstatistics
【摘要】:1.1Thisspecificationdescribesdataelementsandschemaforanarchiveddatamanagementsystemforintelligenttransportationsystem(ITS)-generatedtrafficmonitoringdata,includingconventionaltrafficmonitoringdata,datacollecteddirectlyfromITSsystems,andtravel-timedatafromprobevehicles.Itestablishesthenamesofthedataelements,theirinterrelationships,andtheirproceduraldefinitions.Theseproceduraldefinitionsincludedatacollectioninstrumentationandmethodologyaswellasrecommendedproceduresforcalculatingtrafficstatistics.1.2Thisspecificationisintendedforprimaryusebyarchiveddatamanagementsystem(ADMS)developersandadministrators.ItalsocanbeusedbytrafficoperationsandplanningstakeholderswhoneedtounderstandthecontentsoftheADMS.ITSsystemsexistacrossavarietyofgovernmentallevels,andthedataarchivedinsuchasystemwouldbeavailabletoalllevelsofgovernmentandtheprivatesector,makingthisspecificationapplicabletoalllevelsofgovernmentandtheprivatesector.1.3ManyusersmightwishtodevelopintegratedarchivedtrafficdatamanagementsystemsthatincludebothITS-generateddataanddatacollectedfromconventionaltraffic-monitoringprograms.Thelatteruserequiresasupersetofdataelementstomeetthearticulatednatureofaconventionaltraffic-monitoringprogram.ThisspecificationwilldescribeabasicsetofdataelementsapplicabletoITS-generatedtrafficdataandtheadditionaldataelementsrequiredforconventionaltraffic-monitoringprograms.Inthefollowingdiscussion,thespecificationforthesystemforITS-generateddatawillbereferredtoasthex201C;basicsystem,x201D;andtheoneforITSplusconventionaltraffic-monitoringdatawillbedenotedthex201C;extendedsystem.x201D;Travel-timedatafromprobevehiclesarestoredinseparatetablesthatcanbelinkedthroughtheroadwaylinkidentifiers.1.4ThisspecificationisapplicabletotrafficdatacollectedbyITSandstoredinanADMS.Similarly,thisspecificationalsocanbeusedwithothertypesofhistoricalandmonitoredtrafficdatacollectedandstoredinanADMS,includingtravel-timedatafromprobevehicles.1.5Theapplicationsofx201C;near-real-timex201D;trafficdata,suchasanautomatedtransitinformationsystem(ATIS),arenotaddressedinthisspecification.Inmanycases,trafficdatatobearchivedwillbeprovidedbyareal-timesystem,butthesesystemsareconsidereddatasourcesratherthandatarepositories.1.6Thisspecificationspecifiesalogicaldatastructureforanarchivedtrafficdatamanagementsystem.1.7Metadatarequirementsarespecifiedforthesesystems.Actualmetadataareprovidedfortheelementsdefinedinthisspecification.Placeholdersareincludedforthemetadataelementsthatarespecifictoagiveninstallation.AllmetadataspecificationsfollowtherequirementsofPracticeE2468.1.8Thisspecificationassumestheexistenceofquality-checkeddata.Thequalitycheckstobeappliedshouldbe,ataminimum,thosespecifiedintheAASHTOGuidelinesforTrafficDataPrograms(1),whereapplicable.AsqualitychecksaredevelopedforITS-generatedtrafficdata,theyshouldbeused.Allchecksusedshouldbespecifiedinthemetadataforthearchive.1.9Thesummarystatisticsstoredinthearchiveareassumedtohavebeencalculatedinastandardwaybythesoftwarethatx201C;feedsx201D;thearch......
【中国标准分类号】:R85
【国际标准分类号】:35_240_60
【页数】:107P.;A4
【正文语种】:英语