Technical Note - TN 042: 2017 - Transport for NSW · Technical Note - TN 042: 2017 . ... 8.12. Cathodic protection ... CV 0046177 Brick Platform Stabilising – Sample General Arrangement

Technical Note - TN 042: 2017


Subject: Changes to durability requirements arising from the publication of T HR CI 12002 ST Durability Requirements for Civil Infrastructure

Issued date: 17 October 2017

Effective date: 17 October 2017

For queries regarding this document [email protected]

www.asa.transport.nsw.gov.au

This technical note is issued by the Asset Standards Authority (ASA) to notify that the durability

requirements for civil infrastructure contained in the following documents have been superseded.

• ESC 310 Underbridges

• ESC 340 Tunnels

• T HR CI 12030 ST Overbridges and Footbridges

• T HR CI 12040 ST Overhead Wiring Structures and Signal Gantries

• T HR CI 12060 ST Retaining Walls

• T HR CI 12065 ST Station Platforms

• T HR CI 12070 ST Miscellaneous Structures

• T HR CI 12072 ST Track Slabs

• T HR CI 12130 MA Track Drainage

• T HR CI 12130 ST Track Drainage

Durability requirements are now contained in T HR CI 12002 ST Durability Requirements for Civil

Infrastructure.

© State of NSW through Transport for NSW 2017 Page 1 of 2

mailto:[email protected]


http://www.asa.transport.nsw.gov.au/


Authorisation:

Technical content prepared by

Checked and approved by

Interdisciplinary coordination checked by

Authorised for release

Signature

Date

Name Richard Hitch Richard Hitch Jason R Gordon Jagath Peiris

Position Lead Civil Engineer Lead Civil Engineer Chief Engineer Director Network Standards and Services

© State of NSW through Transport for NSW 2017 Page 2 of 2


© State of NSW through Transport for NSW Page 1 of 1


Subject: Revised reference to risk criteria

Issued date: 21 December 2016

For queries regarding this document [email protected]

www.asa.transport.nsw.gov.au

This technical note has been issued by the Asset Standards Authority (ASA) to notify the

following.

• The risk criteria to be used by the Authorised Engineering Organisations (AEOs) providing

engineering services to TfNSW are contained in T MU MD 20002 ST Risk Criteria for

Organisations Providing Engineering Services, version 1.0.

• 30-ST-164 TfNSW Enterprise Risk Management (TERM) Standard provides the risk criteria

to be used by TfNSW.

• All references to the TERM standard in this document, where applicable to AEOs, shall read

as T MU MD 20002 ST.

Authorisation:

Technical content prepared by

Checked and approved by

Interdisciplinary coordination checked by

Authorised for release

Signature

Date

Name Richard Adams Andy Tankard Andy Tankard Graham Bradshaw

Position Manager Safety and Risk Assurance

Principal Manager SQER

Principal Manager SQER

Director Network Standards and Services



http://www.asa.transport.nsw.gov.au/

Station Platforms

T HR CI 12065 ST

Standard

Version 1.0

Issued date: 17 March 2016

Important Warning This document is one of a set of standards developed solely and specifically for use on Transport Assets (as defined in the Asset Standards Authority Charter). 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 uncontrolled when printed or downloaded. Users should exercise their own skill and care in the use of the document. This document may not be current. Current standards may be accessed from the Asset Standards Authority website at www.asa.transport.nsw.gov.au. © State of NSW through Transport for NSW

T HR CI 12065 ST Station Platforms

Version 1.0 Issued date: 17 March 2016

Standard governance

Owner: Lead Civil Engineer, Asset Standards Authority

Authoriser: Chief Engineer, Asset Standards Authority

Approver: Executive Director, Asset Standards Authority on behalf of the ASA Configuration Control Board

Document history

Version Summary of Changes

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



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 standard was developed by the Chief Engineer section of the ASA, reviewed by a

committee of TfNSW cluster representatives and approved by the ASA Configuration Control

Board.

This standard details the design requirements for station platforms on the TfNSW heavy rail

network and was developed from RailCorp standard ESC 350 Platforms and Retaining Walls,

Version 2.3.

This standard is a first issue.




Table of contents 1. Introduction .............................................................................................................................................. 5

2. Purpose .................................................................................................................................................... 5 2.1. Scope ..................................................................................................................................................... 5 2.2. Application ............................................................................................................................................. 5

3. Reference documents ............................................................................................................................. 5

4. Terms and definitions ............................................................................................................................. 7

5. Safety requirements ................................................................................................................................ 7

6. Environmental and sustainability requirements .................................................................................. 8

7. Heritage requirements ............................................................................................................................ 8

8. Design criteria .......................................................................................................................................... 9 8.1. Configuration ......................................................................................................................................... 9 8.2. Design standards ................................................................................................................................. 10 8.3. Steel framed station platforms ............................................................................................................. 11 8.4. Design life and structure classification ................................................................................................ 11 8.5. Design loads – permanent station platforms ....................................................................................... 11 8.6. Design loads – temporary station platforms ........................................................................................ 12 8.7. Joints .................................................................................................................................................... 12 8.8. Clearances ........................................................................................................................................... 13 8.9. No safe place sign ............................................................................................................................... 13 8.10. Earthworks ....................................................................................................................................... 14 8.11. Drainage .......................................................................................................................................... 14 8.12. Cathodic protection .......................................................................................................................... 14 8.13. Approved materials .......................................................................................................................... 14 8.14. Formwork ......................................................................................................................................... 15 8.15. Platform coping ................................................................................................................................ 15 8.16. Services ........................................................................................................................................... 15 8.17. Electrical requirements .................................................................................................................... 15 8.18. Drawing standards ........................................................................................................................... 15

9. Existing structures ................................................................................................................................ 16 9.1. Existing brick station platforms ............................................................................................................ 17 9.2. Design criteria for ground anchors ...................................................................................................... 17 9.3. Heritage requirements – existing platforms ......................................................................................... 17

10. Construction .......................................................................................................................................... 18

11. Maintenance ........................................................................................................................................... 19

12. Decommissioning or disposal ............................................................................................................. 19




1. Introduction A station platform is a line-side structure built to provide public access to passenger trains.

2. Purpose This document specifies the design, refurbishment, construction, maintenance and,

decommissioning and disposal requirements for station platforms on the Transport for New

South Wales (TfNSW) heavy rail network.

2.1. Scope This standard covers the requirements for the life cycle of station platforms, from design through

to decommissioning, on the TfNSW heavy rail network. It does not cover the platform surface,

except the coping, or the building and architectural elements associated with station platforms.

Platform surfaces (including temporary station platforms) requirements are set out in

T MU SS 90001 ST Safe Pedestrian Surfaces.

This standard specifies the requirements for both permanent and temporary structures.

2.2. Application This standard is intended to be used by competent personnel engaged in the provision of

services relating to rail infrastructure. Compliance with the requirements in this standard will not,

by itself, be sufficient to ensure that satisfactory outcomes will be produced. Personnel

providing services based on the standard need to bring appropriate expertise to the matters

under consideration.

In addition to the requirements of this standard, asset decisions take into account the life cycle

cost considerations specified in T MU AM 01001 ST Life Cycle Costing.

If, when using the standard, it is considered that the intent of stated requirements is not clear, a

clarification should be sought from the ASA.

3. Reference documents The following documents are cited in the text. For dated references, only the cited edition

applies. For undated references, the latest edition of the referenced document applies.

Australian standards

AS 2832.5 Cathodic protection of metals – Part 5: Steel in concrete structures

AS 4678 Earth retaining structures

AS 5100 Bridge design




Transport for NSW standards

ESB 000 Introduction

ESB 001 Station Context and Processes

ESB 002 Design Principles

ESB 003 Station Functional Spaces

ESB 004 Station Services and Systems

ESC 100 Civil Technical Maintenance Plan

ESC 210 Track Geometry and Stability

ESC 215 Transit Space

ESC 302 Defect Limits

SPC 301 Structures Construction

T HR CI 12110 ST Earthworks and Formation

T HR CI 12130 MA Track Drainage (manual)

T HR CI 12130 ST Track Drainage (standard)

TMC 300 Structures General

T MU AM 01003 ST Development of Technical Maintenance Plans

T MU MD 00006 ST Engineering Drawings and CAD Requirements

T MU SS 90001 ST Safe pedestrian surfaces

TS 20001 System Safety Standard for New or Altered Assets

30-ST-164 TfNSW Enterprise Risk Management Standard (available on request from

[email protected])

Transport for NSW standard drawings

CV 0046177 Brick Platform Stabilising – Sample General Arrangement

CV 0212088 Brick Platform Stabilising – Ground Anchors

CV 0212089 Brick Platform Stabilising – Anchor Ties

CV 0212090 Brick Platform Stabilising – Dead Man Anchors

CV 0261000 Standard – All Lines – Steel Stairway for Platform Ends – Miscellaneous Details

Legislation

Heritage Act 1977 (NSW)

Rail Safety National Law 2012 (NSW)




Work Health Safety Act 2011 (NSW)

Other reference documents

NSW Heritage Office 1998, How to Prepare Archival Records of Heritage Items

Roads and Maritime Services Bridge Technical Direction BTD2007/11 Horizontal reinforcement

for crack control in walls and wall type piers

Roads and Maritime Services QA Specification B114 Ground anchors

WorkCover NSW Safe design of structures code of practice, July 2014

4. Terms and definitions The following terms and definitions apply in this document:

AEO Authorised Engineering Organisation

ASA Asset Standards Authority

rail infrastructure manager (as defined in the Rail Safety National Law 2012 (NSW), in relation

to rail infrastructure of a railway, means the person who has effective control and management

of the rail infrastructure, whether or not the person—

(a) owns the rail infrastructure; or

(b) has a statutory or contractual right to use the rail infrastructure or to control, or provide,

access to it

TfNSW Transport for New South Wales

5. Safety requirements Safe design is mandated in the Work Health Safety Act 2011 (NSW) and shall be incorporated

into the design. Guidance on the safe design of structures can be found in the WorkCover

publication Safe design of structures code of practice.

The design of station platforms, including the refurbishment of existing structures, shall take into

account the safety considerations for construction, operational, maintenance and

decommissioning workers and of the potential users of the structure.

The Authorised Engineering Organisation (AEO) shall establish and implement a design

process system that manages safety across the full life cycle of the structure. The design

process system shall be developed in accordance with TS 20001 System Safety Standard for

New or Altered Assets.




6. Environmental and sustainability requirements The design of station platforms, including the refurbishment of existing structures, shall consider

environmental impacts and sustainability opportunities during investigation, design, construction

and operational activities.

The design shall consider sustainability over the life cycle of the asset. Considerations specific

to station platforms include the following:

• durability of material that will last for the expected or planned operational life as per the

asset management cycle

• components (including any other chemicals for operations and maintenance use) shall not

contain any substance of high toxicity if a substance of lower toxicity is available that could

be just as effective

• components (including any other chemicals for operations and maintenance use) shall be

registered in the National Industrial Chemicals Notification and Assessment Scheme

• use of recycled and recyclable material that will meet operational requirements

• visual impact and amenity

• resilience to climate change

• ability and ease to maintain and ‘retrofit’ improvements over time

• disposal and reuse at lifecycle end

7. Heritage requirements Transport agencies are responsible for maintaining and appropriately managing heritage items

under their stewardship and control. The Heritage Act 1977 (NSW) is designed to protect,

maintain and manage environmental heritage in NSW, including items of archaeological

significance.

When changes are proposed to items with heritage significance, the following applies:

• for items listed on the State Heritage Register, the provisions of the Heritage Act shall be

met

• for items listed on a state agency Section 170 Heritage and Conservation Register, the

principles and relevant guidelines contained within the State Agency Heritage Guide shall

be followed

Platforms with identified heritage significance are usually a part of a larger heritage listing for a

station building or precinct. Identifying the significant features, values and characteristics of a

heritage item or precinct is an essential step in developing appropriate designs for new

elements within heritage-listed precincts. The identified significance of a particular item or © State of NSW through Transport for NSW Page 8 of 20



precinct and its contributory elements and values, shall not be compromised by construction

and maintenance works. Advice from a professional heritage practitioner shall be obtained early

in a project’s scoping and design stage to determine heritage constraints and opportunities,

assess any potential heritage impacts and to guide the nature and extent of all proposed works.

Proposals for minor works to heritage listed platforms may be assessed using internal

regulatory authority in cases where there is no adverse impact to heritage fabric; in all cases the

rail infrastructure manager shall direct works and advise regulatory approval paths. If

archaeological evidence is discovered during construction or maintenance works, works shall

cease immediately. The rail infrastructure manager shall be informed and professional heritage

advice obtained, and notification shall be made in accordance with the relevant legislation.

8. Design criteria The design of station platforms shall take into account associated requirements such as track

geometry, service routes, overhead wiring and signalling infrastructure, earthing and bonding,

drainage, architectural treatments and any other site-specific requirements.

Unretained earth slopes beneath open station platforms shall be designed to prevent spillage of

material onto the track.

8.1. Configuration The access category for station platforms in new rail corridors shall be ‘level access’ as defined

in ESC 215 Transit Space. Station platforms in new rail corridors shall comply with the geometry

design requirements set out in ESC 210 Track Geometry and Stability and the approved design

horizontal and vertical alignment.

The access category for station platform reconstruction projects shall be determined by taking

into account site-specific conditions as part of the project development. Station platform

reconstruction projects shall comply with the geometry design alignment requirements set out in

ESC 210.

The width of station platforms shall be determined on the basis of usage requirements and in

accordance with the following Transport standards:

• ESB 000 Introduction

• ESB 001 Station Context and Processes

• ESB 002 Design Principles

• ESB 003 Station Functional Spaces

• ESB 004 Station Services and Systems




The minimum length of new station platforms and station platform reconstruction projects shall

be 172 m for suburban trains and 200 m for intercity trains.

Platform ends shall be vertical, ramped ends are not permitted. Stairways shall be provided at

each end of the platform. The standard drawing CV 0261000 Standard – All Lines – Steel

Stairway for Platform Ends – Miscellaneous Details shows typical details of steel stairways.

The distance between the edge of the platform coping and associated vertical platform wall or

platform support structure adjacent to the track shall not be less than 750 mm.

Platform copings shall not be constructed in steel and shall comply with the requirements of

Section 8.15.

Earth-filled concrete platform structures are the preferred configuration. However, if a steel

frame platform support structure is proposed, it shall comply with the requirements of

Section 8.3.

8.1.1. Requirements for footings To facilitate ballast cleaning and track reconditioning and to ensure that the platform is not

undermined during such activities, the following conditions apply:

• Footings, where not founded in sound rock, shall be founded at a minimum depth of

400 mm below the top of the capping level or 1200 mm below the adjacent rail level,

whichever is deeper. Sound rock shall be rock with unconfined compressive strength,

UCS ≥3.0 MPa.

• Footings, where founded in sound rock, may be founded at a minimum depth of 300 mm

below the top of the capping level or 1100 mm below rail level, whichever is deeper.

• The top of any footing projecting beyond the face of the platform wall shall be located at a

minimum of 1000 mm below rail level.

8.2. Design standards Station platforms shall be designed in accordance with AS 4678 Earth retaining structures,

other relevant Australian standards and international standards and the requirements specified

in this standard. Where there is any conflict, the requirements of this standard shall take

precedence.

The design of station platforms shall also comply with the following Transport standards:

• ESB 000

• ESB 001

• ESB 002




• ESB 003

• ESB 004

8.3. Steel framed station platforms Steel framed station platforms shall only be used with the approval of the Lead Civil Engineer,

ASA.

Steel framed station platforms shall be designed for a minimum life, to first maintenance, of

40 years.

The design shall include provision for ease of access for inspection and maintenance of

steelwork.

The design shall incorporate mitigation against the effects of stray currents. Electrical

requirements shall be obtained from the Lead Electrical Engineer, ASA.

The steelwork shall have protective coatings in accordance with the requirements set out in

SPC 301 Structures Construction.

8.4. Design life and structure classification Station platform retaining walls shall have a design life of 120 years and shall be Classification

C in accordance with Table 1.1 of AS 4678.

8.5. Design loads – permanent station platforms Permanent station platforms shall be designed for platform and incidental impact live loads.

8.5.1. Platform live load requirements Permanent station platform design live load requirements shall be vertical: 10 kPa.

8.5.2. Incidental impact load requirements Permanent station platforms shall be designed to resist the following minimum incidental impact

loads applied as an ultimate design load with a load factor of 1.0:

• normal to rails: 200 kN at any point along the platform

• parallel to rails: 200 kN resisted by the end 20 m of platform

The load cases to be considered shall be as follows:

• normal load applied towards the platform simultaneously with the parallel load

• normal load applied away from the platform simultaneously with the parallel load

The loads shall be applied at the face of the coping.




8.6. Design loads – temporary station platforms Temporary station platforms are platforms that are intended to be in service for not more than

12 months.

The provision of temporary station platforms may be required during the construction of new

works or as part of major maintenance work.

Any station platform that is intended to be in service for more than 12 months shall be

considered a permanent structure and shall be designed in accordance with the design loads

specified in Section 8.5.

Relaxation of the live load requirements for temporary station platforms may be allowed for

platform and collision loads.

8.6.1. Platform load requirements – temporary station platforms Temporary station platform design live load requirements shall be vertical 5 kPa subject to the

platform being used for passengers only and no plant or equipment is permitted.

8.6.2. Incidental impact load requirements – temporary station platforms Temporary station platforms shall be designed to resist the following minimum incidental impact

loads applied as an ultimate design load with a load factor of 1.0:

• normal to rails: 100 kN at any point along the platform

• parallel to rails: 100 kN resisted by the end 20 m of platform

The load cases to be considered shall be as follows:

• normal load applied towards the platform simultaneously with the parallel load

• normal load applied away from the platform simultaneously with the parallel load

The loads shall be applied at the face of the coping.

8.7. Joints Provision for the control of cracking caused by shrinkage and thermal effects shall be made in

new concrete platform walls and platform slabs. Horizontal reinforcement for crack control in

walls shall comply with the Roads and Maritime Services (RMS) Bridge Technical Direction

BTD2007/11 Horizontal reinforcement for crack control in walls and wall type piers.

Movement joints shall be designed to accommodate both contraction and expansion. The

design of movement joints shall be in accordance with AS 5100 Bridge design.




Horizontal construction joints are only permitted at the junction of the stem and the base of a

platform wall.

Isolation joints shall be provided around fixed objects located in slabs to prevent damage to the

slab, for example, structure footings.

Movement joints in brickwork or blockwork facing shall be designed to suit the facing material.

8.8. Clearances Horizontal clearances and vertical clearances for station platforms shall comply with ESC 215.

The area extending one metre below design rail level of Normal Structure Gauge 1994 as

depicted in ESC 215 shall be kept clear of structures and structure footings.

8.9. No safe place sign A ‘no safe place’ sign shall be used to indicate that there is no safe place at track level adjacent

to the platform.

The ‘no safe place’ sign shall comply with standard drawing CV 0282111 Standard – All lines –

Danger Sign “No Safe Place” – General Arrangement. Figure 1 illustrates the general

configuration of the sign.


Figure 1 – No safe place sign

The ‘no safe place’ sign shall be installed at access points to the area in which the station

platform is located. The sign shall be positioned so that it is clearly visible to personnel at the

access points.

The sign may be attached to an overhead wiring structure, a post or the wall structure. Details

such as fixing brackets and bolts are shown on CV 0282111.

The centre of the sign shall be positioned approximately 1500 mm above the ground.



The closest part of the sign should not be less than 1800 mm to the gauge face of the nearest

running rail. At restricted locations, this may be reduced provided that minimum transit space

requirements are met.

If signs are required to be attached to overhead wiring structures, they shall not be attached to

an overhead wiring structure with permanent speed signs attached.

Signs shall not be placed on signal posts or signal structures.

8.10. Earthworks Compaction and drainage of earthworks associated with the backfill of station platforms shall be

designed in accordance with AS 4678.

8.11. Drainage Track drainage shall be specifically designed at station platforms, particularly in cases where

natural run-off from the track structure is interrupted by the platform wall. The drainage design

shall be in accordance with T HR CI 12130 ST Track Drainage and T HR CI 12130 MA Track

Drainage.

Track grade at station platforms shall comply with the requirements set out in ESC 210.

The slope of the platform surface shall be designed to ensure that run-off is directed away from

the track. A positive drainage system shall be provided to collect and dispose of all stormwater.

8.12. Cathodic protection The station platform design shall incorporate provisions for the future installation of cathodic

protection in accordance with the requirements set out in AS 2832.5 Cathodic protection of

metals – Part 5: Steel in concrete structures.

8.13. Approved materials Approved construction materials for main structural elements are steel and concrete. Timber

materials shall not be used as structural elements in station platforms.

Masonry is approved for existing structures and for cladding of new structures where it is

required in special circumstances, for example, heritage considerations.

If any products specified in the design documentation can reasonably be deemed to be new or

infrequently used, these shall be identified by the AEO and referred to the Lead Civil Engineer,

ASA for approval. The AEO shall ensure that the manufacturer, constructor or maintainer of the

product understands any special requirements or practices relating to the product prior to

release of the design documentation, which shall include documentation of these special

requirements.




8.14. Formwork Permanent formwork may be used in the design of station platforms. However, it shall not be

taken into account when determining the strength of the structure.

The design of steel permanent formwork shall include mitigation of the effects of stray currents.

Electrical requirements shall be obtained from the Lead Electrical Engineer, ASA.

8.15. Platform coping The lateral and vertical placement of a platform coping with respect to the track shall be in

accordance with ESC 215.

Coping edge materials shall be non-conductive.

When refurbishing an existing platform coping, a steel edge may be used subject to the

installation of a durable insulating material to the top of the steel edge. Paint shall not be used

as insulating material. The technical requirements for insulating materials shall comply with the

requirements of the Lead Electrical Engineer, ASA.

The use of materials such as fibreglass is subject to the approval of the Lead Civil Engineer,

ASA.

8.16. Services For new station platforms, services shall be located inside utility ducts within the platform.

For existing station platforms, service cables and ducting may be attached to the platform wall

under the coping. Services shall be located at a maximum vertical distance of 500 mm from the

underside of the coping and extend to a maximum horizontal distance of 300 mm from the face

of the platform wall towards the track. Services attached to an existing platform wall shall

comply with the transit space requirements set out in ESC 215.

8.17. Electrical requirements In electrified areas, the design of station platforms shall provide for earthing and bonding of

metallic components of the platform in order to mitigate touch potential hazards and corrosion of

steel. The design requirements for earthing and bonding of station platforms in the electrified

area shall comply with the requirements of the Lead Electrical Engineer, ASA.

8.18. Drawing standards Construction drawings shall comply with T MU MD 00006 ST Engineering Drawings and CAD

Requirements. The construction drawings shall detail the design loadings, horizontal and

vertical clearances, platform coping set out and include any other information that is relevant to

ensure that the new structure is constructed and maintained in accordance with the design. © State of NSW through Transport for NSW Page 15 of 20



9. Existing structures The design of the replacement or refurbishment of an existing station platform shall comply with

Section 8. Provision shall be made for current and proposed future line usage and business

requirements.

Platform reconstruction or refurbishment work shall consider the requirements of all

stakeholders. Design options shall consider the following factors:

• track geometry

• clearances to overbridges, footbridges and overhead wiring structures

• current and future rolling stock types

• height of the platform above rail (the preferred height is for a level access platform)

• length of the platform

• platform cross fall (the preference is for the platform to slope away from the track)

• building levels

• lifts and the height of the lift doors

• drainage

• end of platform access stairs

• lighting

• station furniture

• platform fencing

• service conduits

• removal of trees

• heritage issues

• potential impact on existing buildings, structures, ticket machines, entrances and riser

height to bridge stairs

• potential impact on signal sighting or signal positioning

Excavation and other civil works on station platforms shall comply with the requirements in

TMC 300 Structures General.




9.1. Existing brick station platforms TfNSW has standard drawings for strengthening existing brick station platforms. Strengthening

of existing brick station platforms shall be designed in accordance with the details of the

following standard drawings:

• CV 0046177 Brick Platform Stabilising – Sample General Arrangement

• CV 0212088 Brick Platform Stabilising – Ground Anchors

• CV 0212089 Brick Platform Stabilising – Anchor Ties

• CV 0212090 Brick Platform Stabilising – Dead Man Anchors

The AEO shall be satisfied that the standard design selected is appropriate for the location and

conditions.

9.2. Design criteria for ground anchors Ground anchors may be used to stabilise existing platforms.

Ground anchors shall have a design life of 120 years.

Ground anchors shall comply with the requirements of AS 4678 and Roads and Maritime

Services (RMS) QA Specification B114 Ground Anchors (Lump Sum).

The design of ground anchors shall include the mitigation of the effects of stray currents.

Electrical requirements shall be obtained from the Lead Electrical Engineer, ASA.

The AEO shall specify the requirements for testing. Testing shall comply with the requirements

in RMS QA Specification B114.

The AEO shall specify the requirements for long term monitoring.

Anchor heads shall be protected to ensure that they do not cause an obstruction. The anchor

heads shall be recessed or protected by a continuous smooth surface such as concrete.

Ground anchors shall not extend under private property without the approval of the Lead Civil

Engineer, ASA.

9.3. Heritage requirements – existing platforms For works to heritage listed platforms, the following applies:

• heritage fabric shall be conserved as part of a regular maintenance program in order to

sustainably extend its useful life, under the care and direction of a professional heritage

practitioner or an experienced tradesperson, including but not limited to pest control for

timber component parts, anti-corrosive coatings for metal component parts as applicable

and stonework repairs and maintenance




• during construction or maintenance works fixtures and fittings with heritage significance

shall be protected and conserved

• due to the likelihood of hazardous materials within the fill of heritage listed platforms,

applicable work health and safety legislation shall be followed

Active vegetation management shall be undertaken, including protection of existing vegetation

noted on the station or precinct's heritage listing, appropriate management of senescence, and

maintenance and protection of landscaping. Where a platform structure is notable for its rarity or

technological value, its significance shall be more broadly considered within the context of the

heavy rail network and accordingly conserved.

For new works at platforms within the heritage listed precincts, the following shall apply:

• Where platforms are wholly renewed or new platform structures are proposed within

heritage listed precincts or within the visual catchment of a heritage listed items, a design

approach shall be developed in conjunction with a professional heritage practitioner that

respects the heritage significance of the precinct. New works shall be identifiable as new

and be visually complementary to the existing context.

• Many heritage listed platforms were built with ramped ends to provide access. When

accessibility upgrades to station precincts are proposed, existing ramped ends shall be

retained and, subject to full risk assessment, protected with a collision barrier that meets

the requirements in Section 8.5, and of a material that is complementary to the station

precinct's appearance. Advice on visual presentation of collision barriers shall be sought

from a professional heritage practitioner.

• Fencing to platform ends shall prevent access to the rail corridor and shall not be visually

dominant in colour, style or material to the heritage significance of the station precinct.

For proposed works that would alter the structure or appearance of a platform, photographic

archival recording of the existing platform shall be undertaken prior to the commencement of the

works. Recording shall be prepared in accordance with the NSW Heritage Office (now Heritage

Division, OEH) publication, How to Prepare Archival Records of Heritage Items. This process

can be repeated to record the structure of the platform as it is revealed during construction

works or demolition process, if required by the regulatory authority.

10. Construction The design documentation shall identify standards for construction, including construction

methods, processes and materials.

Station platforms shall be constructed in accordance with SPC 301.

The design documentation shall reflect this requirement and shall include any project specific

requirements necessary for completeness of the technical specifications.




The design of station platforms, including the refurbishment of existing structures, shall take into

account construction constraints, particularly under live rail operating conditions and track

possession constraints.

When undertaking works on, or adjacent to, existing station platforms it may be necessary to

prop the platform to ensure that it is secured during the works. Masonry platform walls shall be

propped when work on the platform requires the use of heavy motorised plant. TMC 300 shows

typical details for propping and sets out the civil infrastructure and track requirements. An AEO

shall design any system used to prop a platform.

Earthworks and excavation near structures shall comply with the requirements set out in

T HR CI 12110 ST Earthworks and Formation and TMC 300. The stability of excavations shall

be maintained at all times.

Approval shall be sought from the rail infrastructure manager (RIM) for any excavation within the

zone of influence of an existing footing.

11. Maintenance The design of station platforms, including the refurbishment of existing structures, shall provide

ease of access to components for inspection and maintenance activities.

The AEO shall carefully select components, materials and finishes that minimise maintenance

during the life of the structure. Stainless steel fasteners shall be specified where access for

inspection and replacement purposes is difficult.

Maintenance requirements shall be specified, in the form of a technical maintenance plan, in the

design documentation of the structure. The requirements shall include examination tasks and

frequencies, damage limits and repair standards. In most cases ESC 100 Civil Technical

Maintenance Plan and ESC 302 Defect Limits apply. However, it may be necessary to

document site-specific maintenance requirements.

The requirements and high-level processes for the development of technical maintenance plans

are detailed in T MU AM 01003 ST Development of Technical Maintenance Plans.

12. Decommissioning or disposal Decommissioning is the final process of withdrawing an asset from active service on the

network.

Disposal is the process of removing an asset from the network. For example, the demolition of a

station platform followed by removal and recycling.

The decommissioning or disposal of an asset is the final stage of the asset life cycle. Proper

planning of this part of the life cycle is an integral part of the strategic life cycle process.




The process to be undertaken for the disposal of a platform shall be as follows:

i. A report shall be produced to confirm that the asset is surplus to the requirements of the

rail network or it is life expired.

ii. The report shall identify the benefits including financial and costs arising from the proposed

decommissioning or disposal.

iii. The report shall confirm stakeholder engagement regarding the proposed action. Such

engagement shall include, but not be limited to, heritage, local government and

environmental body consultation.

iv. The means of decommissioning or disposal shall be a risk based decision carried out in

accordance with the TfNSW safety management system. Refer to 30-ST-164 TfNSW

Enterprise Risk Management Standard for requirements regarding risk mitigation to so far

as is reasonably practical.

v. The report shall include a decommissioning or disposal plan for implementation.

vi. Following decommissioning or disposal the asset database shall be updated to reflect the

network changes.

Ninety-five per cent of construction and demolition waste by weight of the decommissioned

asset shall be diverted from landfill.


Documents

Technical Note - TN 042: 2017 - Transport for NSW · Technical Note - TN 042: 2017 . ... 8.12. Cathodic protection ... CV 0046177 Brick Platform Stabilising – Sample General Arrangement