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TRANSPORT HERITAGE NETWORK
ENGINEERING STANDARDS
The Transport Heritage Network Engineering Standards contain various Engineering Standards, including associated documents such as Engineering Manuals and Engineering Specifications that can be used on Tourist and Heritage Networks.
ENGINEERING STANDARDS
Transport Heritage New South Wales (THNSW) develops and holds these standards on behalf of the sector in NSW.
Tourist and Heritage Networks (THN) railways are those in the NSW Tourist and Heritage sector where a Rail Infrastructure Manager (RIM) adopts these engineering standards in whole or part.
These standards are structured to be general in nature to allow re-use across multiple RIMs. Individual RIMs adopt the use of these standards by provision within their own Safety Management Systems (SMSs) and Engineering Standards.
Where RIMs do not fully adopt the standards owing to their own operational context, they have the options of partial adoption or internally assessing concessions to the standards.
If an organisation wishes to use these standards, please contact us to register interest. Agreement must be obtained from THNSW prior to use.
Use Ctrl-F to find a specific document (Cmd-F on mac)
Safety Alerts
These documents were prepared for use on an NSW Tourist and Heritage Network (THN) only. Transport Heritage NSW (THNSW) makes no warranties, express or implied, that compliance with the contents of these documents shall be sufficient to ensure safe systems or work or operation. THNSW recommends reviewing your particular circumstances before applying these documents. THNSW accepts no liability whatsoever in relation to the use of these documents by any party, and THNSW excludes any liability which arises in any manner by the use of these documents.
These documents are protected by copyright and no part of this document may be reproduced, altered, stored or transmitted by any person without the prior consent of THNSW.
Document Reference | Title | Summary |
|---|---|---|
SMS-12-PR-0960 | Signals Technical Maintenance Plan Standard | The Signalling Technical Maintenance Plan (TMP) provides a comprehensive list of all scheduled maintenance specified for the signalling application. Additionally, the plan provides a brief description of the configuration of the application. |
THN CM 401 | Geotechnical Risk Assessment and Hazard Management Guidelines | These guidelines present an assessment methodology to rank the risk to the safety of rail operations and infrastructure arising from geotechnical problems. |
THN GM 001 | Engineering Standards System Manual | This manual explains the context of and introduces the Tourist and Heritage Network (THN) Engineering Standards, including associated documents such as engineering manuals and engineering specifications. |
THN GM 004 | Writing Requirements and Guidelines For Engineering Standards | This manual ensures that THN Engineering publications are of a consistently high standard and a similar format. |
THN SC 006 | Signalling Documentation and Drawings | This Specification sets out THN’s requirements for the preparation, content and presentation of design and design related documentation and drawings for new and altered signalling Works. |
THN SD 000 | Signalling Design Principles - Introduction | Introduction to Signalling Standards used on a Tourist and Heritage Network (THN) |
THN SD 001 | Signalling Design Principles - Signals | This Principle addresses the form of signals, the descriptions and definitions currently accepted and in use throughout these Signal Design Principles. |
THN SD 002 | Signalling Design Principles - Headway | This Principle addresses the concept of headway and provides further definitions and concepts for the various factors affecting headway. |
THN SD 003 | Signalling Design Principles - Braking Distance | This Principle addresses the concepts and definitions of braking distance and its effect on the requirements and design of a signalling system. |
THN SD 004 | Signalling Design Principles - Overlaps | This principle addresses the concept of an overlap to provide a margin of safety between following trains and provides definition for of the terms associated with overlaps. |
THN SD 006 | Signalling Design Principles - Signs | This Principle addresses the type of and provision of commonly used Notice Signs at strategic locations for safeworking and advisory purposes. |
THN SD 007 | Signalling Design Principles - Single Line Sections | This Principle addresses the requirements for the provision of block circuit controls on single line sections. |
THN SD 014 | Signalling Design Principles - Points | This Principle addresses the concepts and definitions relating to certain types of points referred to throughout these Principles and about the descriptions and definitions currently accepted. |
THN SD 016 | Signalling Design Principles - Controls and Indications | Standard within the Engineering Manual describing signal design principles for controls and indicators |
THN SD 022 | Signalling Design Principles - Measurement | This Principle addresses the requirements for labelling distances on signalling plans and specifically in train order areas. |
THN SD 032 | Glossary of Signalling Terms | This glossary is a collection of common railway signalling terms and their meanings according to historical usage by signalling engineers in the NSW railways. |
THN SD 035 | Signalling Design Principles - Mechanical Signalling | The original draft of this signal design principle was authored by Warwick Allison (FIRSE) in February 2023 to record the design requirements of a mechanical interlocking in the modern signal design principle format. It aims to give a wholistic appreciation of the technology and implementation: where more detail is provided in other signal design principles cross references are provided. |
THN SM 004 | Mechanical Points and Ground Frames | This manual has been prepared for maintainers and installers of mechanical signalling equipment and describes the operation, maintenance and installation of 2 and 3-lever ground frames, the channel rodding drives from the ground frame to the points and of the non-trailable mechanical points equipment. |
THN SM 010 | Switch Rollers | This manual describes the installation, adjustment and maintenance of switch rollers on 53kg and 60kg conventional and 60kg tangential turnouts. |
THN SP 000 | Manual J Cover Page and Index | This manual outlines the requirements to be followed when maintaining, interfering with and attending to failures of the operational signalling infrastructure and systems. |
THN SP 001 | Introduction to Signalling Maintenance Procedures | This procedure highlights to the authorised signalling practitioners engaged in work affecting installed signalling apparatus the essential features, practices, and instructions, so that traffic movements can be made safely. |
THN SP 003 | Accidents or Derailments Action to be Taken | This document details the signalling personnels response to major incidents, such as derailments, collisions, obstructions or train stopped by other exceptional cause unless the affected lines where the incident occurred has no signalling provided. |
THN SP 004 | Failures | This document details the processes for managing failures on a THN network. |
THN SP 005 | Damage to Signalling Equipment including Cables | This procedure details the repair of damage to vital signalling equipment including cables is completed to be safe and secure. |
THN SP 008 | Booking Out and Disconnection of Signalling Equipment | Process to temporarily book out of use controlled signalling equipment |
THN SP 010 | Test and Certify Equip During Maint.docx | THis document details the processes to assure a safe & operational signalling installation by the inspection, testing and certification of New Works and Alterations. |
THN SP 014 | Control of Signal Plans & Circuit Books Issued to the Field | The purpose of this procedure is to set out the responsibilities and requirements for document control of signal plans and circuit books issued to the field |
THN SP 016 | Notification of Whereabouts | This procedure details the reequipment of the signalling workers to inform the Network Control Officer that they are on duty and their location |
THN SP 017 | Maintenance Responsibilities, Frequencies, Recording | This document defines the responsibilities for signaling workers with regard to maintenance frequencies and recording of work completed. |
THN SP 018 | Depot Overhaul of Vital Signalling Equipment | This document defines the processes for the depot overhaul of signalling operating equipment. |
THN SP 019 | Cleanliness and Lubrication of Mechanical Sig Equip | Describes the processes to ensure signalling equipment is cleaned and lubricated. |
THN SP 020 | Fire Protection, Weather Proofing and Cleanliness of Signalling Equipment, Housings and Locations | This document defines the requirements for Signalling Equipment, Housings and Locations. |
THN SP 021 | Minor Signalling Works on Maintenance Areas Involving Installing, Removal or Altering Signalling Equipment | This document details the processes around managing minor signalling works on maintenance areas involving installing, removal or altering signalling equipment. |
THN SP 022 | Testing of Interlockings | This document describes the processes for the testing of interlockings for new or altered signalling when commissioned and periodically to ensure they comply with the design requirement. |
THN SP 029 | Facing Point Lock Detection Testing Mechanical | This document describes the processes for facing point lock testing and adjustment. |
THN SP 031 | Maintenance of Signal Sighting and Signal | This document defines the procedures and tests to be followed when carrying out signal and sign sighting checks, supply voltage checks and other maintenance activities on colour light signals and their support structures. |
THN SP 034 | Custody Storage Use and Dispatch of Staffs and Keys | This document details the custody, storage and dispatch of signalling keys and Staffs |
THN SP 043 | Irregularity Inspection and Testing | The purpose of this document is to provide guidelines for investigating Signal Engineers in the determination of whether there has been a signalling irregularity and if so its technical cause. |
THN SP 044 | Maintenance Management and Supervision | This document sets out general signalling maintenance management, administration and supervision responsibilities to be covered. |
THN SP 045 | Surveillance Inspections | This document describes the surveillance inspections regime for monitoring the safety integrity of the signalling system. |
THN SP 048 | Signalling Locks and Keys | This procedure describes the use and control of the signalling security keys and locks used to secure or gain access to signal infrastructure throughout the THN. |
THN SP 049 | Signal Engineering Waivers | Sets out the THN’s signalling discipline’s requirements for the submission, evaluation and approval of variations from signal engineering standards, procedures and practices |
THN SP 049 FM01 | Signal Engineering Waiver Request for Approval Form | This document sets out the THN’s signalling discipline’s requirements for the submission, evaluation and approval of variations from signal engineering standards, procedures and practices |
THN SQ 001 | Signal Engineering Management | To define the procedure to issue new Signalling Functional Specification. |
THN ST 002 | Assessment of Infrastructure Workers - Licence to Practice | Details the processes required for signalling personnel to obtain Authorisations or Licences to carry out signalling rail safety work on the THN. |
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