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BS EN 13848-3:2021 – TC:2022 Edition

BS EN 13848-3:2021 – TC:2022 Edition

$217.84

Tracked Changes. Railway applications. Track. Track geometry quality – Measuring systems. Track construction and maintenance machines

Published By Publication Date Number of Pages
BSI 2022 86
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This document specifies the minimum requirements for measuring systems fitted on track construction and maintenance machines to give an evaluation of track geometry quality when they measure any one or several of the parameters described in EN 13848-1. This document also gives the acceptable differences from EN 13848-1 when using chord measurements. This document does not specify: — requirements for vehicle acceptance; — criteria for track works acceptance; — requirements for Urban Rail Systems. Only systems put into service after the document comes into force are concerned.

PDF Catalog

PDF Pages PDF Title
52 undefined
56 1 Scope
2 Normative references
3 Terms and definitions
58 4 Symbols and abbreviations
5 Track geometry measuring system fitted on OTMMs
5.1 General description
60 5.2 Environmental conditions
5.2.1 Introduction
5.2.2 Climatic conditions
61 5.2.3 Operating conditions
5.3 Track features input
5.4 Localization device
62 5.5 Measuring devices
5.5.1 General
5.5.2 Sensors
5.5.3 Signal transmission
5.6 Resolution
63 5.7 Signal processing
5.7.1 Introduction
5.7.2 Sampling
5.7.3 Filtering
5.8 Data processing and analysis
5.8.1 General requirements
5.8.2 Data merging
5.8.3 Parameter analysis
64 5.9 Data presentation and storage
5.9.1 Operator interface
5.9.2 Data presentation
5.9.3 Data storage
5.9.4 Data transmission
65 6 Testing of track geometry measuring and recording system
6.1 Introduction
6.2 Calibration
6.3 Validation
6.3.1 Overview
6.3.2 Extended validation
6.3.2.1 Overview
66 6.3.2.2 Static tests
6.3.2.3 Validation of a new system
69 6.3.2.4 Alternative method
70 6.3.2.5 Simplified validation
6.3.2.6 Comparison between different runs
6.3.2.7 Uncertainty analysis
71 6.3.3 Routine validation
6.4 Adjustment
72 Annex A (normative)Parameters measured by track construction and maintenance machine
75 Annex B (informative)Principles of measurement
B.1 General Description
B.2 Longitudinal level and alignment
B.2.1 Chord measuring system
77 B.2.2 Inertial measuring system
B.3 Track gauge
B.4 Cross level
B.5 Twist
78 Annex C (normative)Description of field tests: values to be respected
C.1 General
C.2 Repeatability
C.2.1 Statistical analysis of parameter data
79 C.3 Reproducibility
C.3.1 Statistical analysis of parameter data
80 Annex D (informative)Track geometry measurement uncertainty
D.1 General
81 D.2 Evaluating uncertainty for track geometry measurement systems used on OTMMs
83 D.3 Measurement uncertainty: limit values

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BS EN 13848-3:2021 - TC
$217.84