EN 15227:2020+A1:2024

SLOVENSKI STANDARD
01-december-2024
Nadomešča:
SIST EN 15227:2020
Železniške naprave - Zahteve za zagotavljanje varnosti železniških vozil pri trčenju
(vključno z dopolnilom A1)
Railway applications - Crashworthiness requirements for rail vehicles
Bahnanwendungen - Anforderungen für die Kollisionssicherheit von Schienenfahrzeugen
Applications ferroviaires - Exigences d'aptitude à la collision relatives aux caisses des
véhicules ferroviairesferroviaires
Ta slovenski standard je istoveten z: EN 15227:2020+A1:2024
ICS:
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 15227:2020+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2024
EUROPÄISCHE NORM
ICS 45.060.01 Supersedes EN 15227:2020
English Version
Railway applications - Crashworthiness requirements for
rail vehicles
Applications ferroviaires - Exigences d'aptitude à la Bahnanwendungen - Anforderungen für die
collision relatives aux caisses des véhicules Kollisionssicherheit von Schienenfahrzeugen
ferroviairesferroviaires
This European Standard was approved by CEN on 10 February 2020 and includes Amendment 1 approved by CEN on 26 August
2024.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15227:2020+A1:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Crashworthiness design of rail vehicle structures . 8
4.1 General principles . 8
4.2 Crashworthiness design objectives . 9
4.3 Rail vehicle crashworthiness assessment process . 9
5 Crashworthiness assessment requirements . 9
5.1 Crashworthiness design categories of rail vehicles . 9
5.2 Train assessment methods . 10
5.2.1 Complete trainset method . 10
5.2.2 Reference train method . 11
5.2.3 Summary of train assessment methods . 11
5.3 Design collision scenarios . 11
5.4 Assessment of design collision scenarios . 12
5.4.1 General . 12
5.4.2 Design collision scenario for category C-I . 13
5.4.3 Design collision scenario for category C-II . 13
5.4.4 Design collision scenario for category C-III . 13
5.4.5 Design collision scenario for category C-IV . 14
5.4.6 Summary of design collision scenarios . 14
6 Structural passive safety design requirements . 16
6.1 Assessment requirements for design collision scenarios . 16
6.1.1 General . 16
6.1.2 Explanatory notes (informative) . 16
6.2 Overriding . 17
6.2.1 Requirements . 17
6.2.2 Explanatory notes (informative) . 17
6.3 Survival space, intrusion and egress . 18
6.3.1 General requirements . 18
6.3.2 Survival space requirements for passenger areas . 18
6.3.3 Driver’s cab survival space requirements. 19
6.3.4 Explanatory notes (informative) . 19
6.3.5 Definition of driver’s seat survival space envelopes . 20
6.4 Deceleration limit/collision pulse . 23
6.4.1 Requirement . 23
6.4.2 Explanatory notes (informative) . 24
6.5 Obstacle deflector . 24
6.5.1 Requirement . 24
6.5.2 Explanatory notes (informative) . 27
6.6 Lifeguards . 28
6.6.1 Requirement . 28
6.6.2 Explanatory notes (informative) . 28
7 Validation of crashworthiness . 28
7.1 Validation programme . 28
7.2 Combined validation programme . 29
7.2.1 Step 1: Test of energy absorbing devices and crumple zones . 29
7.2.2 Step 2: Test Calibration of the numerical model . 29
7.2.3 Step 3: Numerical simulation of the design collision scenarios . 29
7.3 Reduced validation programme . 30
7.4 Conformity assessment . 30
Annex A (informative) Parameters of design collision scenarios . 31
A.1 Introduction . 31
A.2 Determining the design collision scenarios for collision risks which differ from the
normal European operations . 32
A.2.1 Design collision scenarios . 32
A.2.2 Risk analysis . 32
A.2.3 Factors to be considered in the risk assessment . 33
A.2.4 Collisions following derailment . 33
A.2.5 Bibliography of relevant accident information . 34
Annex B (normative) Requirements of a validation programme . 35
B.1 Test specifications . 35
B.1.1 Test programme . 35
B.1.2 Acceptance criteria for calibration/validation tests . 35
B.2 Numerical simulations . 36
B.2.1 Numerical model validation . 36
B.2.2 Simulation modelling . 36
Annex C (normative) Reference obstacle definitions . 38
C.1 80 t wagon with side buffers . 38
C.2 80 t wagon with centre buffer freight coupler . 39
C.3 129 t regional train . 41
C.4 Level crossing 15 t deformable obstacle . 43
C.5 Urban road traffic 3 t rigid corner collision obstacle . 44
C.6 Urban road traffic 7,5 t obstacle . 45
Annex D (normative) Reference train definitions . 49
D.1 Reference trains for locomotive, power head, driving trailer and coach design . 49
D.2 Locomotive design . 4
...