【英文标准名称】:StandardSpecificationforHighwayTrafficMonitoringDevices
【原文标准名称】:高速公路交通监控设备的标准规范
【标准号】:ASTME2300-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:E17.52
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:correctdetection;dataitem;detector;falsedetection;incidentdetection;interaxlespacing;laneoccupancy;misseddetection;sensor;trafficmonitoringdevice;vehiclecounter;vehicleclassification;vehicledetector;vehicleflowmeasurement;vehic
【摘要】:1.1ThisspecificationdescribestherecommendedprocedureforidentifyingtheperformanceandoperatingrequirementstobeincludedinapurchaseorderforTrafficMonitoringDevices.Assuch,thespecificationcanbereferencedbytheuserandsellerwhendeterminingcompliancewitheachspecifiedrequirement.ItistheintentofthisspecificationtohavetheuserrequirethesellertoprovideevidencethatthebrandandmodelofTMDofferedbythesellerhaspassedanapplicableType-approvalTest.IftheTMDhasnotpreviouslypassedaType-approvalTest,thenitistheintentofthisspecificationtohavethedevicetype-approvedbeforeitisacceptedbytheuser.IftheTMDhaspreviouslypassedaType-approvalTest,thenthisspecificationrequiresthattheproductionversionofthedeviceprovidedbythesellerpassanOn-siteVerificationTestbeforebeingacceptedbytheuser.1.2TrafficMonitoringDevice8212;ATrafficMonitoringDevice(TMD)isequipmentthatcountsandclassifiesvehiclesandmeasuresvehicleflowcharacteristicssuchasvehiclespeed,laneoccupancy,turningmovements,intervehiclegaps,andotherparameterstypicallyusedtoportraytrafficmovement.TMDsusuallycontainasensingelementthatconvertsthesignal-generatingphenomenon(suchas,airpulsegeneratedbyavehicletirepassingoverapneumatictube)intoanelectricalsignalandelectronicsthatamplify,filter,andotherwiseconditionthesignal.SomeTMDsprovideoutputsasrelayorsolid-stateswitchclosures,whileotherscontainsignalprocessingthattranslatesthesignalintotherequiredvehicleandvehicleflowdata.TMDswhoseoutputsarerelayorsolidstateswitchclosuresmaybeconnectedtoroadsidecontrollers,whichprocesstheswitch-closureinformationandconvertitintovehicleflowdata.1.3CharacterizationofTrafficMonitoringDevices8212;ThisspecificationclassifiesTrafficMonitoringDevicesbythefunctionstheyperform,thedatatheyprovide,therequiredaccuracyofthedata,andtheconditionsunderwhichthedeviceisexpectedtooperateinconformitywiththerequirementsdevelopedthroughthisspecification.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:R85
【国际标准分类号】:03_220_20
【页数】:5P.;A4
【正文语种】:英语