Infrastructure Design Criteria - Volume B: Rail Infrastructure - Annexes

Level numbering and naming shall be determined and agreed with the Authority at the initial stage of design and shall consider both labelling during construction and the labelling for operation, including signage.

Allocation of level numbers to basements and floors follow the standard practice for Singapore. Grade or Ground floor is Numbered ‘01’, one floor above ground is Numbered ‘02’, Basement 1 is ‘B1’, Basement 2 is ‘B2’ etc.

Only primary levels are numbered. A primary level is distinguished by having a habitable floor served by lifts which commonly functions as, but is not limited to, one or more of the following:

1. Entrance Level,

2. Concourse Level,

3. Platform Level,

4. Plantroom Level, or

5. Subway Level¹

   Note:

   ¹ Subway level – A level independent to the concourse level which serves as an underground pedestrian linkway connecting between entrances and/or KOPs to future developments; which can also be part of an Underground Pedestrian Network (UPN).

Level naming shall be standardised as follows:

1. Firstly, the level number: ‘01’, ‘02’, ‘B1’, ‘B2’ etc.

2. Secondly, the functional name for the level, followed by the term “Level”.

Intermediate levels are non-habitable and/or transitional spaces such as double slabs, ceiling access voids, staircase and escalator midlandings/transfers, vent shaft transfers, etc. that are associated with/connected to primary levels. Such levels/spaces do not need to be assigned a level number.

Where such intermediate level occurs at certain areas within the primary level, they can be identified as part plans to the primary level plan.

An underplatform does not have an assigned level number but uses the same level number as the platform above.

Roofs to underground station box (including stairs and vent transfers at that level) do not need to be assigned a level number and shall be labelled as “Underground Station Roof Level”.

This section describes the minimum acceptable requirements for the provision of glazing including walls, glazed doors, integrated glazed components and other glazed elements.

The designer shall assume the responsibility to fully develop, analyze and document the proposed design by appropriately qualified and experienced licensed professional engineers. The design shall be adequate to satisfy structural requirements, aesthetics, air and water leakages, etc. The designer shall verify that the design complies with the applicable regulations. Fabrication shall not proceed until the written approval of the Engineer is obtained.

“Accepted,” “Reviewed”, “Directed”, “Rejected”, “Endorsed” and similar expressions mean accepted, reviewed, directed, rejected, endorsed in writing by the Engineer

Tempered or toughened glass is a type of safety glass processed by controlled thermal or chemical treatments to increase its strength. The terms ‘tempered’ and ‘toughened’ mean the same and are interchangeable.

The selection of glass at each specific location for the works shall be in accordance to AS1288 and in compliance to the relevant sections of the iNPQS as follows:

1. A02-050 Glass Partitions

2. A03-010 Semi Unitised Cassette System

3. A03-020 Stick Curtain Wall System

4. A03-040 Glass Fin System

5. A04-060 Windows

6. A05-040 Glass Roof System

The project specific M&W specifications shall be developed using the relevant INPQS sections as a base. The project specific M&W specifications shall be expanded by including all specific requirements required by the glazing at each location in order to meet the requirements as outlined within this document and all cross-referenced documents.

All requirements shall be in accordance to the LTA Architectural M&W General Requirements.

For precedence, in the event of any discrepancies, conflicts or contradiction between the Particular Specification, reference standards, or within this Specification, the most stringent/ onerous requirement shall be adopted.

Codes, Regulations, Standards and Technical Documents requirements as follow:

The Whole of the Works and material are to be in accordance and comply with all prevailing standards and code requirements; as well as regulations as set out by the authorities having jurisdiction over the works, and the relevant bylaws unless otherwise stated.

In case of conflicting requirements between the codes, refer to the Engineer for resolution. Assume priority of precedence of the different standards and codes in descending order as follows:

1. Singapore Codes SS and SS CP

2. SS ISO or ISO

3. BS or BS EN

4. Other standards such as ASTM (US), AS (Australia), etc, as agreed with the Engineer.

Where specified, the works shall be carried out in accordance with the principles and methods as set out in the technical reference document.

Alternative methods and principles may be proposed subject to Engineer’s acceptance, if it can be demonstrated that the proposal is beneficial and without compromise to the specified quality or performance of the works

Loading Requirements on glass refer to the LTA Civil Design Criteria.

Stations identified as having Civil Defence (CD) requirements, refer to the CD Design Criteria for requirements and information relating to the upgrading of materials, material thicknesses, composition and fixing methods for CD stations.

The glazing works shall:

1. remain intact under the ambient in-service and climatic conditions;

2. withstand the anticipated loads without damage or impairment of performance;

3. provide adequate means of dealing with thermal and differential movement. No glass shall suffer from thermal fracture;

4. be designed to minimise fragmentation and panel separation.

5. allow for effective maintenance and replacement to be carried out without damaging adjacent components.

6. be installed to minimize visual impact of roller wave distortion or ‘pillowing’ effect. Direction of ripples shall be consistent.

All thickness of glass for external application shall meet with the required design wind pressure or suction and shall be watertight.

All external glazing enclosing or providing covered shelter shall limit solar heat gain and prevent UV penetration.

All glazing exposed to weather shall be self-cleaning and solar control glass where exposed to weather.

Glazing shall be used such that the public are protected from danger. All glass must be Grade A in compliance with the requirements of Singapore Standard SS 341: Safety Glazing Materials for Use in Buildings (human impact considerations).

Selection and design of glass shall be in accordance to SS 653.

Feasible mitigation measures (e.g. impact barriers) acceptable to the Engineer shall be provided where glazing systems are susceptible to impact.

The design of the structure shall be in accordance with AS 1288, established good engineering practice and principles. The design and loading requirements shall be as follows:

1. The loads specified and effects for the most severe combination of forces on every component /member.

2. The method and sequence of construction shall be specified and taken into account in the design.

3. Possible imperfections in fabrication and erection shall be considered in the design. The structurally acceptable margins of tolerance shall be clearly specified for critical members and installation/ operations.

4. Unless otherwise demonstrated by the Designer and accepted by the Engineer that there is no impact on public safety in case of glass failure, all glass shall be designed for one ply failure. The remaining unbroken/ un-shattered glass ply shall be designed to carry selfweight of the whole panel and wind load.

5. Structural fixings shall be designed to resist all anticipated loads such as dead loads, live loads, wind loads, etc. including all structural movements individually and in combinations. All fixings shall accommodate the worst combination and the overall articulation of the glazing.

6. All glazing elements shall be designed such that effective maintenance and replacement of these elements can be carried out without damaging adjacent components.

7. The breakage or removal of any panel of glass or any component shall not lead to a collapse or failure of adjacent elements or the system as a whole.

8. Horizontal elements of suspended glass such as skylights, etc. shall be designed to withstand all the anticipated loads including:

   1. the imposed roof loads as specified in the Civil Design Criteria without material failure or permanent deformation of structural members.

   2. falling objects.

9. The loads appropriate to the design of glass parapets and balustrades shall be in accordance with the Civil Design Criteria.

10. The design shall incorporate the clearances, dimensions, configurations and withstand the loads created by the selected window washing system. Loads induced by the system shall be considered to act simultaneously with the design wind pressures.

11. The glazing system shall be capable of withstanding dynamic effect, including vibrations if appropriate. When the glazing is adjacent to a carriageway, it shall be designed to withstand a vibration of 10mm/sec without breakage of the glass or separation of the glass from the supports.

Glazing shall be designed to provide for expansion and contraction over the following temperature ranges without buckling, sealed joint failure, glass breakage, stone breakage, undue stress on members or anchors, and other detrimental effects.

External environment allowance temperature range ambient from 15°C to 37°C.

Internal environment allowance temperature range ambient from 20°C to 35°C (for non-air-conditioned space) and 15°C to 27°C (for air-conditioned space)

Surface temperature allowance shall be +33°C i.e. 70°C.

Horizontal and sloped elements of suspended glass (e.g. skylights etc): Maximum full load deflections, normal to the projected area of the suspended glass, for any support member shall not exceed 1/240 of its clear span or 19mm, whichever is less. Maximum full load deflections, parallel to projected area of suspended glass, shall not exceed 75% of the design clearance dimension between that member and the panel, glass or other part immediately adjacent.

For glass to be considered as four-edge fully supported, the deflection of edge of the glass shall be limited to glass span/175. This requirement shall also be applied to the one ply failure condition. Only self-weight and wind load (if applicable) need to be considered under such a condition.

Permanent deformation: Weld or fastener failure, component dislodgement or breakage shall not occur under loading equal to 1.5 times the design load pressures. Permanent deformation is defined as deflection without recovery exceeding length/1000.

The Designer shall submit calculations for all the elements. The following calculations shall be submitted:

1. Structural calculations for frames, connections and glass panels including calculations for one ply failure condition to show that the total maximum stresses and deflections do not exceed specified performance requirements under full design loading. Building movements including loading deflections, shrinkage, creep, temperature variation and vibration, etc. are to be taken into account.

2. Thermal stress calculations for each type, size and thickness of exterior glass.

3. Calculations on expected expansion and contraction shall be compared against the allowable values in the design.

4. Structural calculations for the anchorage of the glazing washing systems.

5. Calculations for all the anchors, inserts and fasteners, demonstrating that they will sustain all imposed design loads.

All glass shall be evaluated and tested to demonstrate conformity to the specified characteristics and properties and shall be fabricated with the required factory production controls as outlines under the following standards and parts thereof:

1. Glass generally : SS341 & BS EN 572

2. Laminated Glass: BS EN 14449 & ISO 12543

3. Heat Strengthened Glass : BS EN 1863

4. Toughened Glass : BS EN 12150 & BS EN 14179

All glass and glazing materials shall be free from defects which detract from appearance or interfere with performance under normal conditions of use and shall comply to:

1. Glass generally : BS EN 572 parts 1, 2 and 8

2. Laminated Glass: ISO 12543 parts 1,2,3,4,5 and 6

3. Heat Strengthened Glass : BS EN 1863 part 1

4. Toughened Glass : BS EN 12150 part 1 & BS EN 14179 part 1

All glazing shall be Grade A safety glass in accordance to SS 341 unless otherwise stated.

Quality Control measures shall be in place to ensure all glass supplied and installed meet specified standards including; tolerances limits, maximum blemishes, required characteristics, maximum distortions,

Any piece of glass that fails to meet the specified standards shall be considered a defect and thus render all glass from the same batch unacceptable and shall be rejected.

Any inherent defects or deterioration in quality from the specified standards found during the warranty period shall also be considered a defect requiring the replacement of the glass panel.

Polyvinylbutyral (PVB) interlayer of laminated glass shall be of appropriate thickness as recommended by manufacturer.

All laminated glass shall have clean-cut edges, or polished edges and protected to prevent de-lamination, contamination or other defects, caused by moisture, sealant contact or other external/internal source. Materials used shall not cause deterioration or discolouration of the interlayer.

All surface treatments to be on the inner face of the laminated glass.

All roller wave on toughened heat treated glass to be horizontal and shall not exceed requirements for toughened glass as per BS EN 12150.

All toughened glass shall be heat soak tested to BS EN 14179 and subject to other quality control measures, to minimise the occurrence of nickel sulphide inclusions. This Specification defines nickel sulphide inclusions as a glass/material defect. Installed toughened glass which breaks due to nickel sulphide inclusions shall be considered a material defect and shall be replaced under the warranty provisions.

Framed glass shall be smooth, of uniform dimensions, and free from components likely to bleed, stain or detrimentally affect performance of the glazing.

All jointing materials shall be compatible with each other and with the contact surfaces and non-staining to finished surfaces. Do not use bituminous materials on absorbent surfaces.

Fastenings, including bolts, anchors, lugs and the like, shall be of a type appropriate to the work, capable of transmitting the loads and stresses imposed, and sufficient to ensure the rigidity of the assembly. All fixings and brackets shall be non-corrosive. Mild steel or cadmium plated steel fixings will not be acceptable

Submit a report from an independent testing authority to AS/NZS 4666 accredited by the Insulating Glass Certification Council (USA), showing that the unit type has attained Class A as defined in ASTM E774 when tested to ASTM E773.

Process exposed glass edges to a finish not inferior to smooth ground arrissed as stated in BS EN 12150 and ISO 12543

All mirror shall be silver layer deposited on the glass or glazing plastic. Protective coatings shall be electrolytic copper coating at least 5 µm thick, and 2 coats of mirror backing and edge sealing paint having a total dry film thickness of at least 50 µm.

All mirrors shall be framed on all sides in aluminium, with mitred joints/ corners. Attach the frame to the substrate with concealed screw fixings.

Glass edges to be bedded in a continuous resilient gasket.

Seal the frame to the substrate with paintable sealant which will not react with the mirror coating. Do not allow the sealant to contact the mirror back.

Weather strips in accordance to BS EN 12365.

Materials for weather strips shall be polypropylene or equivalent pile and backing, low friction silicone treated and ultra violet stabilised.

Finned type for weather strips shall be a pile weather seal with a central polypropylene fin bonded into the centre of the backing rod and raised above the pile level.

Depth of elastomeric sealant for movement joints shall be one half the joint width, or 6 mm, whichever is greater.

Foamed materials (in compressible fillers and backing rods) shall be closed-cell or impregnated types which do not absorb water.

To prevent bond breaking in movement joints, provide backing rods, and other back-up materials for sealants, which do not adhere to the sealant.

Workmanship shall be according to application as defined in the relevant sections of the iNPQS as follows:

1. A02-050 Glass Partitions

2. A03-010 Semi Unitised Cassette System

3. A03-020 Stick Curtain Wall System

4. A03-040 Glass Fin System

5. A04-060 Windows

6. A05-040 Glass Roof System

Protect all glazing on site from damage until handover.

Damaged glazing will not be accepted.

Protect all glass from all risks of chemical, physical and mechanical damage at all times.

Replace damaged glass and leave the work clean, polished, free from defects, and in good condition.

Store all glass as recommended by the manufacturer in a covered, dry, protected and ventilated area.

Temporary measures: submit details of all proposed temporary protection measures to the Engineer for acceptance.

Remove temporary protection measures.

Transport all glass as recommended by the manufacture.

Carry out inspections of mock-ups and prototypes as required under Section 5 of Glazing Design Criteria.

All on site materials and workmanship shall be subject to inspection by the Engineer at all times.

Ensure edges of all tempered and heat strengthened glass are unchipped at the time of installation and remain so until handover.

Install the glass as follow:

1. each piece is held firmly in place by permanent means which enable it to withstand the normal loadings and ambient conditions at its location without distortion or damage to glass and glazing materials;

2. building movements are not transferred to the glass; and

3. external glazing is watertight and airtight.

Temporary marking shall be as follow:

1. use a method which does not harm the glass

2. remove marking on completion.

Tempered and heat strengthened glass shall be as follow:

1. Do not cut, work, or permanently mark after toughening.

2. Use installation methods which prevent the glass making direct contact with metals or other non-resilient materials.

Written notice of inspection for the following witness points shall be as follow:

1. The fabrication of glazed panels or assemblies prior to delivery to the site.

2. Fabricated glazed panels prior to installation on site.

3. Those parts of the glazing installation which will be covered up or concealed.

Written notice of inspection for the following hold points shall be as follow:

1. Completion of sample approvals

2. Completion of confirmation of mock-ups and prototypes.

3. On completion of trial sections of work.

4. Laminated glass test: on completion of 72 hours holding test.

Sealant application required to check prior to the installation of glazing sealant that all contact porous surfaces have been sealed.

Submit a complete list of shop drawings and a complete list of samples of components and mock-up, manufacturers and fabricators for each specification section for acceptance and tracking, prior to submitting shop drawings and/or samples.

General

Make all submissions in accordance with the requirements of Architectural M&W General Requirements.

Subcontractors

Submit name and contact details of proposed specialist glazing subcontractor(s).

Submit name and contact details of proposed specialist glass supplier.

Method Statement

Submit a method statement for all glazing works.

Design

Submit the sub-contractor’s confirmation that the following are acceptable with regard to the bow, warp, and kink characteristics of the required glass types.

1. the glazing clearances provided in the frames.

2. the frame tolerances.

3. the joint configurations.

4. bracket dimensions and sizes.

Shop drawings

Verify all dimensions on site prior to the preparation of shop drawings.

Submit shop drawings showing, but not limited to, the following information:

1. Elevations plans and sections of all glazed areas showing the supporting structure and layout of all glazing identifying panel numbers and differing glass types.

2. Rebate depth.

3. Edge restraint.

4. Clearances and tolerances.

5. Glazing gaskets and sealant beads.

6. All brackets, supports, fixings and accessories, including all primary and secondary support and framing members.

7. Frame and support details.

8. Details of all required joints, penetrations and interfaces.

9. Allowances for movement.

10. Method of assembly.

11. Provisions for maintenance access.

No. of copies to be submitted as per Particular Specification.

Calculations

Comply with all relevant Singapore legislation and regulations.

The Contractor shall submit calculations for all the elements:

1. Structural calculations for frames, connections and glass panels including calculations for one ply failure condition to show that the total maximum stresses and deflections do not exceed specified performance requirements under full design loading. Building movements including loading deflections, shrinkage, creep, temperature variation and vibration, etc. are to be taken into account.

2. Thermal stress calculations for each type, size and thickness of exterior glass.

3. Calculations on expected expansion and contraction shall be compared against the allowable values in the design.

4. Structural calculations for the anchorage of the glazing washing systems.

5. Calculations for all the anchors, inserts and fasteners, demonstrating that they will sustain

6. all imposed design loads.

7. Design and construction of structural sealant glazing shall comply with BCA’s requirements.

Submit calculations and drawings endorsed by a Singapore licensed Professional Engineer concurrently with the shop drawings and showing, but not limited to, the following:

1. Compliance with all relevant Singapore legislation and regulations.

Submit calculations and drawings endorsed by a Singapore licensed Professional Engineer to show that the structural glazing system has been designed to:

1. provide a structural sealant bite adequate to restrain the glass at the ultimate limit states design wind pressure as required by the Engineer.

2. provide for thermal movement between abutting glass edges by an adequate “working joint” design with the necessary clearances and dimensions to the sealant manufacturer’s recommendations; and

3. limit the working stress of sealants and the working stress of pressure sensitive tapes as required by the Engineer.

Glazing schedule

Designers shall prepare a full glazing schedule identifying all types of glass used in a station, including its associated support system, material properties and location. Glazing schedules must be included in each formal design submission and accepted by the Authority.

Manufacturers’ information

Submit the manufacturer’s technical literature for all proprietary materials used together with certification of compliance and test reports to the required standards, in accordance with Architectural M&W General Requirements.

Submit copies of relevant manufacturers’ instructions including standard drawings and details.

Submit material safety data sheets (MSDS).

Fire resistant glass: Submit a report certifying that the glazing assembly meets the fire resistance requirements of where fire resistant glass is required.

Glass manufacturer’s data

Heat soaked tempered glass: Submit certificates from the glass manufacturer confirming by reference to statistical analysis of past test data that the anticipated rate of failure in tempered glass due to nickel sulphide inclusions after heat soaking, will be no greater than 1 per 400 tonne of glass.

Opacified glass: Submit a statement by the manufacturer certifying that the proposed method of opacifying the glass will not be detrimental to the glass or detract in any way from the glass product warranty.

Glazier’s data: Submit the glazing subcontractor’s statement certifying that the assembled frame provides for the required glazing clearances and tolerances and maximum and minimum joint configurations, having regard to the bow, warp and kink characteristics of the required glass types, and is ready for glazing.

As Built drawings

Provide as built drawings.

Operation and Maintenance Manual

On completion submit an Operation and Maintenance Manual.

A comprehensive maintenance strategy for the glazing system shall be submitted for approval. The strategy shall include periodical inspection requirement of the glazing system and methodology for replacement of broken glass and routine cleaning. The methodology shall be demonstrated during design stage and verified on site with a full mock up at construction stage.

Site specific access and lifting equipment details shall be submitted for approval to demonstrate that panel replacement can be achieved, including all time required for mobilisation and demobilisation of such equipment, within 4 hours for all glass panels

General

Submit samples of each of the following in accordance with Architectural M&W General Requirements.

Submit samples, each at least 300 x 300mm, showing specified visual properties and the range of variation, if any, for each type of glass, including, but not limited to:

1. Tinted or coloured glass.

2. Surface modified or surface coated glass.

3. Patterned or obscured glass.

4. Ceramic coated glass.

5. Wired glass.

6. Mirror glass.

7. Laminated glass.

8. Tempered glass.

9. Fire resistant glass.

Submit samples at least 600mm long of the following:

1. All joint types proposed for use in glass and framing.

2. Each glazing extrusion and assembly which will be exposed to view.

3. Each extrusion, accessory and fixing used in the structural glazing.

4. A structurally glazed corner fully glazed and complete with all sealants.

Submit samples of all accessories and ironmongery items.

All samples to held by the Authority and available for viewing during the tender and construction period.

Provide mock-ups and prototypes during the different stages

Glass enclosure at entrance to carry out the following:

1. Pre-production mock-up required to incorporate

   1. an assembly of glazing including support details, sealant or joint, capping and edge details

   2. extrusion and mullions

   3. any other as directed by the Engineer

2. Confirmation prototype required to incorporate

   1. all details specified in the pre-production mock up

   2. interfaces with SWC components if any

Glass balustrade to carry out the following:

1. Pre-production mock-up required to incorporate

   1. all termination, critical joints and interfacing material

   2. any other details as directed by the Engineer

2. Confirmation prototype required to incorporate

   1. all details specified in the pre-production mock-up

   2. typical finish, texture and colour of the metal framing and fixings

3. On-site Quality Control Prototype required to incorporate

   1. One bay of wall and balustrade modules showing at least one termination, one intermediate and one interfacing module with adjacent finishes

General

Carry out the following tests for all glazing:

1. Weather tightness in accordance to AS2208 in locations agreed with the Engineer. Repair all identified leaks and retest.

2. Wind resistance in accordance to AS1288

3. Resistance to Wind Load in accordance to AS1288

4. Skylight and canopy glazing in accordance to AS1288

Holding Test For Laminated Glass

Test laminated glazing to demonstrate that should one ply of any laminated glass break, the remaining unbroken plies held within the actual fixings, shall have sufficient strength to carry the weight of the broken ply, together with all anticipated loads with the broken glass being required to remain in position for a minimum of 72 hours.

1. Timing of the test: On completion of the glazing, or as directed by the Engineer.

2. Location of test: On site.

3. Item to be tested: To be agreed with the Engineer.

4. Ply to be broken: To be agreed with the Engineer.

5. Loading: external glazing: Dead load.

6. Live load: as climatic conditions at the time of the test.

7. Loading: internal glazing: Dead load.

The breakage of further plies of glass during the test shall not constitute a failure provided it/they remain in position for the period of the test.

Glass/ Glazing

Shop glazed units: Submit details of a test deglazing procedure, or a panel bond strength test procedure.

Rate of tests

1. one unit in the first 10;

2. one unit in the next 40;

3. one unit in the next 75; and

4. one unit in each 100 thereafter.

Sealant

Type test to ASTM C1087, to demonstrate compatibility with the other materials and accessories of the structural glazing system which it may contact.

This document gives an overview of the general requirements for advertising and retail design provisions to be incorporated in the design of the station. All drawings and illustrations provided in this document are indicative only. This document shall be read in conjunction with Chapter 4 – Security Requirements.

The Designer shall further coordinate their design and construction activities with the appointed advertising and retail operators to ensure that the requirements for equipment installation, maintenance and operation are incorporated in the design and construction phases of the project, e.g. the provision of necessary openings on wall claddings/ floor tiles for the installation of advertising panels.

The Designer shall ensure that the design and provision comply with all prevailing regulatory requirements and guidelines, including and not limited to Code of Practice for Advertisements in Rapid Transit Systems (RTS) Stations, Trains and Tunnels (CP3), Code of Practice for Security Standards in MRT Systems (CP6) and Code of Practice for Fire Precautions in Rapid Transit System (CPFPRTS).

The Designer shall allocate suitable wall, floor and ceiling spaces for the installation of advertising assets based on the guidelines outlined in this document and/or other specific guidelines/locations advised by the Authority. Spaces to be reserved shall be coordinated with other relevant Designer/contractors to avoid clashes with station signs, fire extinguisher/hose reel cabinets, access panels, exit lights, Station Travel Information System displays (STIS), Video Surveillance System (VSS) including monitors and cameras, their field of view and visibility from commuters, radio antennae, artwork etc.

The various permanent advertising assets can be installed in the ticketed and non-ticketed areas of station premises. The following are some potential advertising locations:

The tables below show examples of the types of advertising assets that can be installed.

a. Floor Mounted Assets
Floor mounted assets can be located near faregates and beside escalators. Floor mounted assets shall have at least 300mm lateral clearance from the side of any escalator or staircase for working space and maintenance purposes. The asset shall not pose obstruction/hindrance/inconvenience to the pedestrian flow. Locations shall not obstruct station operations, e.g., line of sight of surveillance from Passenger Service Centre (PSC), VSS field of vision, station signs or pedestrian flow. Locations shall not obstruct floor tactile and cause inconvenience to the Persons with Disabilities (PWDs). Floor mounted assets can be free standing or located in front of columns. Floor mounted assets can be installed as a single piece or in pairs.
	Type	Digital Display
	Approximate Size	Single floor mounted asset size not exceeding: 1200 (W) x 2000 (H) x 150 (D) mm, typically enclosed with a metal housing1 .
	Power socket	2 no. 13A Switch Socket Outlet (SSO) per digital panel

The Designer shall coordinate the installation details of power supply for advertising assets with the relevant Designers/contractors and advertising operator. All services (including all pipes, cables, trunking and conduits) shall be concealed or routed above false ceiling. Dedicated advertising distribution boards (DB) with electrical sub-meter shall be provided. The dedicated advertising DB shall be provided with 20% spare capacity.

The tables below show the general guidelines on the placement of power socket for the advertising assets. Power sockets are to be provided at appropriate locations in accordance to the space reserved for placement of such advertising assets.

a. Floor Mounted Assets

The Designer shall coordinate with the relevant Designer/contractor and the advertising operator for provision of underfloor trunking to the exact location of the advertising panels, where required. Power sockets can be installed at the reserved panel locations, recessed in the architectural finishes with an appropriate access panel/cover plate provided. The Designer/contractor shall ensure that the design of the access panel/cover plate does not pose as a tripping hazard to the commuters.

The Designer shall design retail spaces with a total area of 115m2 in the non-ticketed areas of each station. The retail spaces shall be well-located and be highly visible along the main commuter traffic flow to maximise the commercial potential.

In the event of the presence of large incidental spaces within the station, the Designer shall propose strategies for the integration of additional retail spaces in suitable locations within the station, over and above the standard 115m² , where deemed suitable and/or as requested by the Authority. Such additional retail spaces are subject to the Authority, Singapore Land Authority (SLA), Urban Redevelopment Authority (URA), Singapore Civil Defence Force (SCDF) and other relevant agencies’ approval.

The Designer shall design machine spaces in the non-ticketed areas of each station so that they do not obstruct commuter traffic flow.

Retail spaces should ideally be located along the main traffic flow e.g. along the non-ticketed linkway connecting interchange stations. The retail spaces will be categorised into two types:

^{³ As per CPFPRTS, shops with a maximum aggregated area of 115m² (where no individual shop unit shall exceed 100m² )are allowed in the public area of MRT stations.}

The tables below show the provisions required for the retail spaces. This is to be read in conjunction with Section 6.9 under Annex B - MRT Station Room Datasheets.

⁴ The retail operator will apply for PUB water sub-meter.

⁵ The retail operator will apply for PUB water sub-meter.

The tables below show the provisions required for the licensed space for the purposes of the installation and operation of Automated Teller Machines (ATM), AXS Stations and/or Self-Automated Machines (SAM).