EN 14067-4 2024+A1 2025.docx

EuropeanstandardNormeeuropeenneEuropaischenormEN14067-4:2024+AlMay2025ICS45.060.01SupersedesEN14067-4:2024EnglishVersionRailwayapplications-Aerodynamics-Part4:RequirementsandassessmentproceduresforaerodynamicsonopentrackApplicationsferroviaires-Aerodynamique-Partie4:Exigencesetproceduresd,evaluationpourFaerodynamiqueaFairIibreBahnanwendungen-Aerodynamik-Teil4:AnforderungenundBewertungsverfahrenfiirAerodynamikaufoffenerStreckeThisEuropeanStandardwasapprovedbyCENon27February2024andincludesAmendment1approvedbyCENon9April2025."“CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCEN-CENELECManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCEN-CENELECManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITEEUROPEENDENORMALISATIONEuropaischeskomiteefurnormungCEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels©2025CENAllrightsofexploitationinanyformandbyanymeansreservedRef.No.EN14067-4:2024+Al:2025EworldwideforCENnationalMembers.PageContentsEuropeanforeword4Introduction51 Scope62 Normativereferences63 Termsanddefinitions64 Symbols75 Requirementsonlocomotivesandpassengerrollingstock145.1 Limitationofpressurevariationsbesidethetrack145.1.1 General145.1.2 Requirements145.1.3 Fullconformityassessment155.1.4 Simplifiedconformityassessment155.2 Limitationofslipstreameffectsbesidethetrack175.2.1 General175.2.2 Requirements175.2.3 Fullconformityassessment195.2.4 Simplifiedconformityassessment205.3 Aerodynamicloadsinthetrackbed225.4 Aerodynamicallyinducedballastprojection.225.5 Runningresistance226 Requirementsoninfrastructure.236.1 Train-inducedpressureloadsactingonstructuresparalleltothetrack236.1.1 General236.1.2 Requirements236.1.3 Conformityassessment236.2 Train-inducedairspeedsactingoninfrastructurecomponentsbesidethetrack,236.3 Train-inducedaerodynamicloadsinthetrackbed236.4 Train-inducedairspeedactingonpeoplebesidethetrack236.5 Aerodynamicallyinducedballastprojection247 Methodsandtestprocedures247.1 Assessmentoftrain-inducedpressurevariationsbesidethetrack247.1.1 General247.1.2 Pressurevariationsinthepressurefield(referencecase)277.1.3 Pressurevariationsonsurfacesparalleltothetrack367.1.4 Effectofwindonloadscausedbythetrain447.2 Assessmentoftrain-inducedairflowbesidethetrack447.2.1 General447.2.2 Slipstreameffectsonpersonsbesidethetrack(referencecase)447.2.3 Slipstreameffectsonobjectsbesidethetrack487.3 Assessmentoftrain-inducedaerodynamicloadsinthetrackbed487.4 Assessmentofrunningresistance497.4.1 General497.4.2 Full-scaletests49AnnexA(informative)Procedureforfull-scaletestsregardingtrain-inducedairflowinthetrackbed57A.1A.2A.3A.4A.5General57Trackset-up57Vehicleconfigurationandtestconditions58Instrumentationanddataacquisition58Dataprocessing59Bibliography60EuropeanforewordThisdocument(EN14067-4:2024+Al:2025)hasbeenpreparedbyTechnicalCommitteeCEN/TC256nRailwayApplicationsthesecretariatofwhichisheldbyDIN.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyNovember2025,andcon11ictingnationalstandardsshallbewithdrawnatthelatestbyNovember2025.Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.CENshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.ThisdocumentincludesAmendment1approvedbyCENon9April2025.Thisdocumentsupersedes/EN14067-4:2024".Thestartandfinishoftextintroducedoralteredbyamendmentisindicatedinthetextbytags!u.ResultsoftheEU-fundedresearchproject"AeroTRAIN”(GrantAgreementNo.233985)arecontainedinthisdocument.(Deletedparagraphs11ThisdocumenthasbeenpreparedunderastandardizationrequestaddressedtoCENbytheEuropeanCommission.EN14067,RailwayapplicationsAerodynamicsconsistsofthefollowingparts: Part4:Requirementsandassessmentproceduresforaerodynamicsonopentrack; Part5:Requirementsandassessmentproceduresforaerodynamicsintunnels; Part6:Requirementsandassessmentproceduresforcrosswindassessment; Part7(TR):Fundamentalsfortestproceduresfortrain-inducedballastprojection.An