T HR RS 00830 ST
Standard
RSU Appendix C – Brake
Performance Curves
Version 1.0
Issued Date: 19 December 2014
Important Warning
This document is one of a set of standards developed solely and specifically for use on the rail network owned or managed by the NSW
Government and its agencies. It is not suitable for any other purpose. You must not use or adapt it or rely upon it in any way unless you
are authorised in writing to do so by a relevant NSW Government agency.
If this document forms part of a contract with, or is a condition of approval by, a NSW Government agency, use of the document is
subject to the terms of the contract or approval.
This document may not be current. Current standards are available for download from the Asset Standards Authority website at
www.asa.transport.nsw.gov.au.
© State of NSW through Transport for NSW
T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
Standard governance
Owner:
Lead Rolling Stock Engineer, Asset Standards Authority
Authoriser:
Chief Engineer Rail, Asset Standards Authority
Approver:
Director, Asset Standards Authority on behalf of ASA Configuration Control Board
Document history
Version
Summary of change
1.0
First issue
For queries regarding this document,
please email the ASA at
[email protected]
or visit www.asa.transport.nsw.gov.au
© State of NSW through Transport for NSW
T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
Preface
The Asset Standards Authority (ASA) is an independent unit within Transport for NSW (TfNSW)
and is the network design and standards authority for defined NSW transport assets.
The ASA is responsible for developing engineering governance frameworks to support industry
delivery in the assurance of design, safety, integrity, construction, and commissioning of
transport assets for the whole asset life cycle. In order to achieve this, the ASA effectively
discharges obligations as the authority for various technical, process, and planning matters
across the asset life cycle.
The ASA collaborates with industry using stakeholder engagement activities to assist in
achieving its mission. These activities help align the ASA to broader government expectations of
making it clearer, simpler, and more attractive to do business within the NSW transport industry,
allowing the supply chain to deliver safe, efficient, and competent transport services.
The ASA develops, maintains, controls, and publishes a suite of standards and other
documentation for transport assets of TfNSW. Further, the ASA ensures that these standards
are performance based to create opportunities for innovation and improve access to a broader
competitive supply chain.
This is a new part of the Minimum Operating Standards for rolling stock.
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
Table of contents
1.
RSU Appendix C - Brake Performance Curves ................................................................................... 5
1.1.
1.2.
Introduction ........................................................................................................................................................... 5
Purpose .................................................................................................................................................................. 5
2.
Scope ...................................................................................................................................................... 5
2.1.
2.2.
Application ............................................................................................................................................................. 5
Referenced documents ......................................................................................................................................... 5
3.
Brake curve summary ........................................................................................................................... 6
4.
Applicable brake curves for speed boards ......................................................................................... 6
4.1.
4.2.
4.3.
4.4.
Normal or general speed boards ......................................................................................................................... 6
Medium speed boards .......................................................................................................................................... 7
High or XPT speed boards ................................................................................................................................... 7
Train stops ............................................................................................................................................................. 7
5.
Brakes performance curve applicability ............................................................................................. 7
6.
Brakes curves ........................................................................................................................................ 8
6.1.
6.2.
6.3.
6.4.
6.5.
6.6.
6.7.
6.8.
6.9.
6.10.
6.11.
GW 16 ..................................................................................................................................................................... 9
GW 30 ................................................................................................................................................................... 10
GW 40 ................................................................................................................................................................... 11
GE 52 .................................................................................................................................................................... 12
GE 52 A ................................................................................................................................................................ 14
GE 62 .................................................................................................................................................................... 16
GX2M .................................................................................................................................................................... 18
GX4M .................................................................................................................................................................... 22
GE NG-FS-MAX .................................................................................................................................................... 26
RSU 641 ................................................................................................................................................................ 28
RSU 342 ................................................................................................................................................................ 28
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
1.
RSU Appendix C - Brake Performance Curves
1.1.
Introduction
The Asset Standards Authority (ASA) has established interface requirements pertaining to
rolling stock operating on the RailCorp network. This standard covers these requirements under
common and specific interface requirements.
1.2.
Purpose
The purpose of these standards is to ensure that all rolling stock operating on the RailCorp
network meet the minimum standards to ensure compatibility with the network and its
infrastructure as required by the Transport for NSW (TfNSW) accreditation with the Office of
National Rail Safety Regulator (ONRSR).
2.
Scope
This standard, RSU Appendix C, provides the brake stopping distances or brake curves
referenced in T HR RS 00100 ST Section 7 (RSU 160) and T HR SC 00006 ST Rolling Stock
Signalling Interface Requirements.
All rolling stock operating on the RailCorp Network shall meet the stopping distances detailed in
the brake curve that is applicable to that rolling stock type.
Rolling stock may be required to meet more than one brake curve depending on the type of
rolling stock and the type of braking systems or driver safety systems fitted.
New rolling stock will generally be required to meet more stringent, shorter brake curves.
2.1.
Application
This appendix is to be referenced by users of T HR RS 00000 ST - Minimum Operating
Standards
for
Rolling
Stock,
T HR SC 00006 ST
Rolling
Stock
Signalling
Interface
Requirements, and Transport Standard ESG 100 Signal Design principals.
Refer to Transport Standard ESG 100 Signal Design Principals which details the required
braking curve for the particular lines on the RailCorp Network.
2.2.
Referenced documents
T HR RS 00000 ST - Minimum Operating Standards for Rolling Stock
T HR SC 00006 ST - Rolling Stock Signalling Interface Requirements
ESG 100 – Signal Design Principals
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
3.
Brake curve summary
The following table summarises the brake curves contained within this Appendix:
Table 1 - Brake curve summary
Brake Curve
Description
Section
GW 16
3/4 Loaded Superfreighter (1500 t, 680 m)
6.1
GW 30
3/4 Loaded Superfreighter (2760 t, 1280 m)
6.2
GW 40
3/4 Loaded Superfreighter (3480 t, 1600 m)
6.3
GE 52
R/S Set - Crush load – Trip stop – Maximum distance
6.4
GE 52 A
R/S Set – Crush load – Trip stop – Average distance
6.5
GE 62
R/S Set – Full service E.P. – Max Distance
6.6
GX2M
XPT – Full seated load – Trip stop – Max distance (80%
Average deceleration)
6.7
GX4M
XPT – Full seated load - Full service E.P. – Max distance
(80% Average deceleration)
6.8
GE NG-FS-MAX
M Set "New Generation Train" – Full service – Maximum
distance in degraded service condition (80% of Medium
specified deceleration)
6.9
T HR RS 00600 ST
(RSU 641)
All new multiple unit trains, Full service and emergency
brake - All load conditions - Maximum distance
6.10
T HR RS 00300 ST
(RSU 342)
Light locomotives, Full service automatic brake – high
friction brake blocks - Maximum distance
6.11
4.
Applicable brake curves for speed boards
4.1.
Normal or general speed boards
Rolling stock operating at the normal or general speed boards shall meet the stopping distances
defined in the GW 16 brake curve. Rolling stock usually operating at these speed boards are
freight trains, locomotives, locomotive hauled passenger, infrastructure maintenance vehicles,
and road rail vehicles.
Rolling stock with longer stopping distances, for example to GW 30 or GW 40 brake curves,
may be accepted by TfNSW for operation on the RailCorp Network, however the operating
speeds are required to be less to maintain stopping distances.
Rolling stock, such as locomotives, infrastructure maintenance vehicles, and road rail vehicles,
are required to meet brake stopping distances that are shorter than the above specified brake
curves
(refer
to
T HR RS 00300 ST – RSU 342,
T HR RS 00700 ST – RSU 712,
T HR RS 00700 ST – RSU 722 for details).
Vehicles operating to these speed boards shall be designed to operate at not less than 75 mm
cant deficiency.
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
4.2.
Medium speed boards
Rolling stock operating at the medium speed boards shall meet the brake stopping distances
specified in the GE 62 brake curve. Rolling stock usually operating at these speed boards are
existing electric multiple unit (EMU) passenger rolling stock and some special infrastructure
maintenance vehicles.
New EMU passenger rolling stock shall meet the brake stopping distances detailed in
T HR RS 0060 ST – RSU 641.
Vehicles operating to these speed boards shall be designed to operate at not less than 75 mm
cant deficiency.
4.3.
High or XPT speed boards
Rolling stock operating at the high or XPT speed boards shall meet the brake stopping
distances specified in the GE 62 brake curve (up to 115 km/h) and GX4M brake curve (from
130 km/h up to 160 km/h). Rolling stock usually operating at these speed boards are existing
diesel multiple unit (DMU) passenger rolling stock, XPT passenger trains, and some EMU
passenger rolling stock.
New EMU and DMU passenger rolling stock and XPT passenger trains shall meet the brake
stopping distances detailed in T HR RS 00600 ST – RSU 641.
Vehicles operating to these speed boards shall be designed to operate at not less than 110 mm
cant deficiency.
4.4.
Train stops
Train stops and subsequent trip gear fitted on rolling stock is found on EMU and DMU
passenger rolling stock and XPT passenger trains.
The brake curve applicable to existing rolling stock is 'GE 52 A – 15%'. That is, stopping
distances 15% shorter than that specified in GE 52 A. This applies for speeds up to 130 km/h.
For speeds above 130 km/h, up to 160 km/h, the GX2M brake curve may be used.
For new passenger rolling stock, the train stop brake performance shall meet RSU 641,
however for any new rolling stock, trip operation shall not exceed 140 km/h. For operation
above 140 km/h, ATP shall be required.
5.
Brakes performance curve applicability
The applicability of brake performance curves on the RailCorp Network is detailed in Transport
Standard ESG 100 Signal Design Principals, section ESG 100.3 Braking Distance. ESG 100.3
shows which brake performance curve is applicable over various parts of the RailCorp Network.
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
6.
Brakes curves
The following pages contain the various brake curves. Generally, the brake curve is presented
in a graphical format with the addition of the curve data supplied in tabular form.
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
6.1.
GW 16
Figure 1 - Brake curves - GW 16 – graphical and tabular format
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
6.2.
GW 30
Figure 2 - Brake curves - GW 30 – graphical and tabular format
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
6.3.
GW 40
Figure 3 - Brake curves - GW 40 – graphical and tabular format
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
6.4.
GE 52
Figure 4 - Brake curves – GE 52 – graphical format
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
Figure 5 - Brake curves – GE 52 – tabular format
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
6.5.
GE 52 A
Figure 6 - Brake curves – GE 52 A – graphical format
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
Figure 7 - Brake curves – GE 52 A – tabular format
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
6.6.
GE 62
Figure 8 - Brake curves – GE 62 – graphical format
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
Figure 9 - Brake curves – GE 62 – tabular format
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
6.7.
GX2M
Figure 10 - Brake curves – GX2M – graphical format – part 1
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
Figure 11 – Brake curves - GX2M – graphical format – part 2
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
Figure 12 - Brake curves - GX2M – graphical format – part 3
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
Figure 13 - Brake curves - GX2M – tabular format
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
6.8.
GX4M
Figure 14 - Brake curves – GX4M – graphical format – part 1
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
Figure 15 - Brake curves – GX4M – graphical format – part 2
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
Figure 16 - Brake curves – GX4M – graphical format – part 3
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
Figure 17 - Brake curves – GX4M – tabular format
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
6.9.
GE NG-FS-MAX
Figure 18 - Brake curves – GE NG-FS-MAX – graphical format
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
Figure 19 - Brake curves – GE NG-FS-MAX – graphical format
© State of NSW through Transport for NSW
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T HR RS 00830 ST
RSU Appendix C – Brake Performance Curves
Version 1.0
Issued Date: 19 December 2014
6.10.
RSU 641
Refer to T HR RS 00600 ST, Section 6 (RSU 641), Table 2 - Maximum stopping distances for
new multiple unit trains.
6.11.
RSU 342
Refer to T HR RS 00300 ST, Section 8 (RSU 342), Table 4 – Minimum stopping distances with
high friction brake blocks.
© State of NSW through Transport for NSW
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