Scope
UIC 544-2
Railway Braking Force Estimation Methods
UIC 544-2 provides standardized calculation and estimation methods for determining braking force in railway rolling stock across different brake system types and operational scenarios. This technical standard defines mathematical models for translating brake system pressure, line force, and mechanical leverage into actual stopping power, accounting for variables such as wheel slip, temperature effects, and load conditions. The standard enables consistent performance prediction and certification across diverse European rail systems. Accreditation for this calculation methodology ensures reproducible, safety-critical engineering assessments used in rail fleet design and operational planning.
What it measures
- Brake force calculation from system pressure and geometry
- Adhesion coefficient effects on available braking force
- Load-dependent braking force variations
- Dynamic brake force response characteristics
- Braking force distribution optimization
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NBN EN 14531-1
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DIN EN 14531-1
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BS EN 14531-1
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NF EN 14531-1
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UNI EN 14531-1
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UNE EN 14531-1
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NEN EN 14531-1
3,963
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21
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Massaspectrometrie
Immunoflowcytometrie
Beenmergonderzoek
Bloedafname (extra-muraal)
Bloedafname (intra-muraal)
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Monsterverwerking: registratie, opslag
Histochemische kleuringen
Immuunhistochemische kleuringen
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Immuunfluorescentie kleuringen
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OMECO SrL
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DIN EN ISO 17294-2
ISO 15708-3
ISO 15708-4
IEC 62321-2
IEC 62321-3-1
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OMICRON ITALIA Srl
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DIN EN 14175-3
DIN EN 14175-4
DIN EN 12469
BS EN ISO 14644-1:2015
UNI EN 14175-4
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AOAC 2012.01 2016
COI/T.20/Doc n 35/rev 1 2017
COI/T.20/Doc n 34/rev 1 2017
OIV-MA-AS313-01 cap 5.2 R2015
OIV-MA-AS313-02 R2015
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ISO 4832
DIN ISO 16649-2
DIN EN ISO 4833-1
DIN EN ISO 21528-2
ISO 11731
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ISO 4832
ISO 21527-1
DIN EN ISO 4833-1
ISO 11731
ISO 16649-2
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OMNILAB
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ISO 11731
ISO 9308-1
BS EN ISO 17294-2
APAT CNR IRSA 2030 Man 29 2003
APAT CNR IRSA 2060 Man 29 2003
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Druck 0,03 bar
> −0,02 bar
positiver Ãœberdruck
Absolutdruck Pabs
Negativer und positiver —0,01 bar
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ONTRAS Gastransport
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Railway braking — urban guided transport
Railway vehicle body structural requirem
> 2,0 bar
> 0,05 bar
positiver Ãœberdruck
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OPTOLUTION Messtechnik
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Durchfluss von
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1) In den CMC sind die erweiterten Messu
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verwendete Abkürzungen:
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Ober Berg & Lukowiak
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DIN EN 60068-2-14
DIN EN 60068-2-30
DIN EN IEC 60068-2-38
DIN EN 60529
IEC 61000-4-2: 2008
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Tensile testing of metallic materials (I
Charpy impact test (ISO 148-1)
DIN EN ISO 6506-1
DIN EN ISO 6507-1
DIN EN ISO 6508-1
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Tensile testing of metallic materials (I
Charpy impact test (ISO 148-1)
DIN EN ISO 6506-1
DIN EN ISO 6507-1
ASTM E 8
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Officine Santafede srl
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Charpy impact test (ISO 148-1)
DIN EN ISO 3651-2
ASTM E 8
ASTM A 262-15
ASTM E 1245-03
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Oldham Specsavers Hearcare
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Otoscopy | Audiometer (Brand) 1 x
History taking | Siemens Unity 3 AC tran
Pure tone audiometry | DD45 BC transduce
Impression taking | Heine
Real ear measurement | Casella CEL-240 S
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Omega-Test srl
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UNI ISO 16258-1
UNI 11768
UNI ISO 16258-1
DM 06/09/1994 GU n 288 10/12/1994
Reg CE 761/2009 23/07/2009 GU CE
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0,2 0,003 bis 0,006
(N 2 O) 0,000008
(HNF1b-Gen, OMIM#189907
DIN EN ISO 19458
DIN EN 13126-19
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Omnia Lab Center Srl
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DIN EN ISO 4833-1
DIN EN 12457-2
ISO 11731
ISO 4833-1
ISO 18593
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Eiweiße
Faktor II
Faktor IX
Faktor V
Faktor VII
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ZONE3, MeasureMind einer Raumdiagonale
Software von OGP ≤ 1155 mm
Software von OGP ≤ 630 mm
Hofheim-Wallau, D
Steuerungssoftware Messvolumen mit
Optical Test & Calibration
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DC Resistance
DC VOLTAGE
DC CURRENT
DC RESISTANCE (cont’d)
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