Advanced train control Migration System (AMS ... · Project Specification design guideline specifically covers the design ... Project type: Major Table of ... Direct Lamp Fed lnstallations

Reference material

Advanced train control Migration System (AMS) Specifications – Balise Placement Where There is No Space

This document is published as reference material to support the implementation of Automatic Train Protection as part of the roll out of the Advanced Train Control Migration System project.

The content described might be of assistance to individuals and organisations performing work on Transport for NSW Rail Assets.

When reading this document, any inconsistencies with Transport for NSW Network Standards shall be raised with the Asset Standards Authority (ASA) for clarification.

This document does not comply with accessibility requirements (WCAG 2.0). If you are having trouble accessing information in these documents, please contact the ASA.

Authorised by: Chief Engineer, Asset Standards Authority Published: December 2017 Important message This document is 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 is published for information only and its content may not be current.

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NSWGOVERNMENT

Transpofrfor NSW

AMS PROJECT SPECIFICATIONS:Balise Placement Where There is No Space

DeskSite Reference: 4898826Guideline - Applicable to Transport Projects AMS Program

Quality Management SystemStatus:

Version:

Branch:

Business unit

Date of issue:

Review date:

Audience:

Asset classes

Project type:

Project lifecycle:

Process owner:

Approved

1.0

lnfrastructure and Services

ATP / AMS Program

11 April 2016

11 April 2017

ATP / AMS Project Specific Document

I Heavy Rail; I t-ight Rail; n Mutti Sites;

X Systems; X Fleets

Major

X Feasibility; X Scoping; I Definition;

X Construction readiness; X lmplementation;

I Finalisation; ! Not applicable

Project Director

Signal Design Guideline: Balise PlacementWhere There is no Space

O TfNSW 2014

QUALITY MANAGEMENT SYSTEM

UNCONTROLLED WHEN PRINTED

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ffil#ft's,irBalise Placement Where There is No Space

Infrastructure and Services : ATP / AMS Program

Project type: Major

Document Approval:

Document History

Authored by: Adam Greaves(Senior Signal Design Engineer) Date: Û1 fa6 1a¡o

Reviewed by: J Firmstone(Technical Manager, ATP)

\J

Date: 11-04-2016

Reviewed and Accepted by:Frederic Tricoche(Senior Technical Manager)

%lauoDate:

Approved for Release by: CraigSouthward(Project Director)

t xt+RvDate:

0.1 17t03t2016 J Firmstone Minor formatting and AMS introductionupdates. lnitial AMS review.

1.0 11t04t2016 J Firmstone First review and update. Final

MIft¡Tffi

Signal Design Guideline: Balise Placement QUALIry MANAGEMENT SYSTEMWhere There is no Space.O TfNSW 2OI4 UNCONTROLLED WHEN PRINTED

DeskSite Reference: 4898826

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ffil#i,'f,îrBalise Placement Where There ls No Space

lnfrastructure and Services : ATP / AMS Program

Project type: Major

Foreword

This design guideline forms a part of the TfNSW suite of railway signalling principles and

standards which detail the requirements for use on the TfNSW heavy rail network. This AMS

Project Specification design guideline specifically covers the design application for non

standard balise placements at a signal.

To gain a complete overview of signalling design requirements, this document should be read

in conjunction with the suite of ASA and AMS Project Specific signalling design: principles,

standards and guideline modules.

Signal Design Guideline: Balise Placement QUALIry MANAGEMENT SYSTEMWhere There is no Space.@ TfNSW 2014 UNCONTROLLED WHEN PRINTED


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Balise Placement Where There is No Space


Project type: Major

Table of contents

1. lntroduction...............

2. Purpose

2.1. Scope.......

2.2. Application

3. Reference documents..............

4. Terms and definitions........

5. Strategy

Definition of When Required

5

5

6

6

6

6

7

76.

7.

8.

o

I9

10.

Automatic Signals,

Controlled Signals

9.1. Most Relay lnterlockings ............... .......... 9

9.2. Direct Lamp Fed lnstallations & CBI Hybrid Arrangements (eg SSI and Microlok).............9

FMEA Analysis of LEU HR Configuration ........10

Signal Design Guideline: Balise Placement QUALITY MANAGEMENT SYSTEMWhere There is no Space.OTfNSW2OI4 UNCONTROLLEDWHEN PRINTED


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1MBalise Placement Where There is No Space


Project type: MajorNSW@txffi

Transportfor NSW

1 lntroduction

ETCS Train Stops, High Risk Turnouts and some High Risk Reduced Overlaps will require a balise

group (containing a controlled balise) to be located just before a signal.

Signals are located near insulated joints, about Lm before the tuning unit of a tuned loop or

2.5m into a tuned loop (latest standard).

The train must receive information from a controlled balise before the A track is occupied to

ensure the intended information is read. This, coupled with the location of the antenna on the

rollingstock relative to the first axle, places requirements on the positioning of balises relative

to the track circuit boundary.

Also, all balises of a balise group which contains a controlled balise should be located beyond

the reading range of the antenna on the train, to prevent the on-board equipment

prematurely receiving balise information if the train has stopped close to the balise group.

Hence the controlled balise is placed about 6m before the signal. However there are some

locations on the network where it may not be possible to obtain the necessary distance. These

places include where signals are mounted on platforms and where turnouts are located

extremely close to the platform end. A good example is Hornsby platform 2.

2. Purpose

This design guideline forms a part of the TfNSW suite of railway signalling principles, standards

and guidelines that detail the requirements of the design to be used on the TfNSW heavy rail

network for ETCS signal balises.

The primary purpose of this document is to define the design requirements, such that

situations where the train receives update information from a controlled balise after the A

track is occupied, are avoided.

A secondary purpose is to provide guidelines to enable consistency of the design of trackside

ETCS systems.

Signal Design Guideline: Balise PlacementWhere There is no Space.O TfNSW 2014




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Project type: Major

2.1.

2.2.

3.

Scope

This document provides guidance to AEOs on ATP ETCS AMS integration.

This document provides requirements for the option of changes to the signal interlocking

where the balise group at a signal cannot be placed in the standard arrangement.

Application

This document applies to AEOs engaged to carry out signal design for ETCS works.

Reference documents

The following documents provide additional requirements information. For dated references,

only the cited edition applies. For undated references, the latest edition of the referenced

document applies.

Transport for NSW standards:

ESG 100 Signal Design Principles

Terms and definitions

The following terms and definitions apply in this document:

AEO Authorised engineering organisation; means a legal entity (which may include a Transport

Agency as applicable) to whom the ASA has issued an ASA Authorisation

AMS Advanced train control Migration System

ASA Asset Standards Authority

ATP automatic tra¡n protection; a system which supervises train speed and target speed, alerts

the driver of the braking requirement, and enforces braking when necessary. The system may

be intermittent, semi-continuous or continuous according to its track-to-train transmission

updating characteristics.

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du;Balise Placement Where There is No Space


Project type: MajorNSW@8ffiM

Transportfor NSW

ETCS European train control system; a three level, unified, modular automatic train protection

specification to enhance interoperability across Europe

IASS lndicating Automatic Signal Sections (system)

TfNSW Transport for New South Wales

TVS Train Visibility System

5. Strategy

ln situations where the standard balise placement relative to the signal cannot be achieved

due to physical constraints, if it is possible to relocate the signal (and associated equipment)

without adversely affecting sighting or maintainability, then this shall be the preferred course

of action. This maximises consistency of design and consistency of driver experience.

ln cases where this cannot be or is impractical to be achieved, the following may be designed.

This is based on removing the A track from the immediate restoring of the LEU. lt is

considered safe because the condition can only exist when a train is occupying the A track, (ie

the train is effectively over the balise, so it cannot be falsely read by another train) and is

similar to last wheel replaced signals, but does not have the disadvantage of a potential read

through by a train following.

Definition of When Required

The controlled balise location must be beyond the train antenna range at the stopping point.

lf this requires the controlled balise to be placed closer to the track circuit boundary than the

distance between the first axle and the antenna, then this strategy is required to be

implemented.

It is expected that this modification will only be necessary for platform departure signals,

where trains will need to regularly pull up close to the signal to fit the rear of the train on the

platform. At other locations, there will generally be no adverse impact if the tra¡n is required

to stop 2 - 3 metres earlier than today.

6

Signal Design Guideline: Balise Placement QUALTTY MANAGEMENT SYSTEMWhere There is no Space.O TfNSW 2014 UNCONTROLLED WHEN PRINTED

DeskS ite Reference: 4898826

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Project type: Major

7. Signals at Tuned Loops

When the track circuit boundary is a tuned loop the shunting point plus equipment delay time

makes it very unlikely that a LEU valid movement authority would be removed before the

antenna had passed the point of track dropping. ln such situations, this modification is not

required.

8. Automatic Signals

Where the signal is an automatic signal, the balises may be placed in a position just past the

usual stopping place for the train. This is likely to be closer to the insulated joints but could be

into the next track circuit, and even into the points area, however this would be an extreme

case.

A new signal control relay is to be provided for the LEU HR which shall not take the 'A' track,

but otherwise contains all the same controls as the signals HR.

The LEU HR shall prove the Signal HR up which would then be stuck out by a contact of the LEU

HR. The LEU HR is also used in the HDR to prevent the higher aspect relays dropping when the

signal HR drops due to A track occupancy.

The LEU HR shall also have an additional control of berth track occupied. This is to replace the

LEU control relays to stop once the train is past. The berth track occupied should be in series

with the LEU stick path so that the stick is only effective with the berth occupied.

lf the signal is directly fed from a CBI where current sensing of lamps would otherwise be used

to provide inputs to the LEU, then it will be necessary to provide additional outputs specifically

for the LEU similar to the relay option above. This will need a data change.

The LEU control relays will need to be proved de-energised in the track stick circuit. The LEU

inputs should not contain any trainstop reverse functions as this would restore on A track

dropping and negate the intended function of the LEU HR.

The LEU HR is not to be provided in IASS/TVS inputs.

Signal Des¡gn Guideline: Balise Placement QUALIry MANAGEMENT SYSTEMWhere There is no Space.O TfNSW 2014 UNCONTROLLED WHEN PRINTED


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Project type: Major

9. Controlled Signals

9.1. Most Relay lnterlockings

Where the signal is a controlled signal the same principles as for an automatic signal apply.

However in order to ensure that all signal interlocking functions are included in the LEU

control, an LEU UCR function is needed in the relay room. This will need to exclude the A track

the SR and RUR. The replacement functions described above for the automatic signal will need

to be provided in this circuit. The LEU UCR shall prove the main UCR energised and then this is

stuck out with the LEU UCR and an occupied contact of the berth track, same as for an

automatic signal. This permits the dropping of the LEU UCR with route cancellation under all

circumstances except A track occupation. The UCR is then sent to the field location via a new

LEU HR normal double switch HR circuit. At the field location the suite of signal control relays

is the same as the automatic signal arrangement. The LEU HR is to be back proved in the

NGPR, but not the NGK. As the NGK does not include the LEU HR, there is no change to

signallers indications.

A function to replace the LEU UCR in the event of a signaller cancelling the route needs to be

provided to break the stick path. This could be a contact of the (N)R.

9.2. Direct Lamp Fed lnstallations & CBI Hybrid Arrangements (egSSI and Microlok)

The LEU aspect controls will need to be provided as new outputs from the CBI (similar to the

auto signals above). This will involve data changes. The data will need to be configured as

described above for the relay interlocking. To permit the signaller to restore the signal in the

event of berth track occupancy the cancelling control needs to be included. ln the case of

Microlok interlockings, the UN function can be utilised.

Signal Design Guideline: Balise Placement QUALITY MANAGEMENT SYSTEMWhere There is no Space.@ TfNSW 2014 UNCONTROLLED WHEN PRINTED

DeskS¡te Reference: 4898826

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Project type: Major

10. FMEAAnalysis of LEU HR Configuration

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Signal Design Guideline: Balise Placement Where There is no Space.

o TfNsw 2014



Balise Placement Where There is No Spacelnfrastructure and Services : ATP / AMS Program

Project type: Major

Desksite Reference:4898826

Page 1l of14

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Gomments

Same scenario as designed functionality

Cancellation of route by signaller willoccur as he will attempt to reclear signal.Hence no residual failure - circuit isfunctional.

For Auto signal, present rules require thedriver having observed the signal returnto stop then re-clear to report the incidentand proceed with caution. Additionaldelay by passing signal at stop byprocedure is minimal.

SafeYes/No

Yes

Yes

Yes

Yes

SatisfactoryYes/No

Yes

Yes

Yes

Yes

System Response

Neither HR nor LEU HR can pick. Safe sidefailure.

Both HR and LEU HR drop. Safe side resutt.

HR drops, signal and train stop returns to stopLEU HR remains up.

lf 'A' track fails and is corrected, track will notrestore as LEU HR up. For controlled signal,Signaller will need to cancel route to drop LEUHR. For Auto signal, first train will need tofollow procedure to pass signal at stop. A trackwill pick up after train.

Because 'A' track was up this situation is thesame as a RIFOD.

lf trains runs past will pick up new MA, henceRIFOD did not occur, although signal will be atstop.

Both HR and LEU HR drop

Situation

I 'A' Track fails, signal at Stop,train present or not present.

2. Signal clear then 'A' trackfails, no train on berth track.

3 Signal clear then 'A' trackfails with train on berth track.

4. Signal clear and signallercancels route.R

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Transportfor NSW

Signal Design Guideline: Balise Placement Where There is no Spacæ.

@ TfNSW 2014





Project type: Major

DeskSite Reference:4898826

Page 12 o'f 14

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While the LEU HR does not drop if a trainis in a position to read it, the potential forcollision has already occurred.

lf opposing SPAD causes this, the signaland LEU would have been at stop.

Yes

N/A

Yes

Yes

Both HR and LEU HR drop

For'A'track SPAD see 2 and 3 above

5. Signal clear and loss of routecontrol due to detection loss,SPAD etc.

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Signal Design Guideline: Balise Placement Where There is no Space.

@ TfNSW 2014



Balise Placement Where There is No SpaceInfrastructure and Services : ATP / AMS Program

Project type: Major


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Signal Design Guideline: Balise Placement Where There is no Space

@ TfNSW 2014

QUALIry MANAGEMENT SYSTEM

UNCONTROLLED WHEN PR¡NTED



Project type: Major


Page 14 of 14

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Advanced train control Migration System (AMS ... · Project Specification design guideline specifically covers the design ... Project type: Major Table of ... Direct Lamp Fed lnstallations

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