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Modular success

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MetalWorks Technical

Corus' modular railway platforms come with advantages of consistent quality, cost certainty and design flexibility

Less than a year ago, Corus launched a new venture called Modular Systems, dedicated to providing cost-efficient modular railway platforms that will reduce construction time and provide better value for money. Corus Rail Modular Systems is focussing on delivering integrated solutions for the design, fabrication and installation of modular platforms, within the railway environment.

The core product offered is a lightweight, steel-framed platform of a modular design and construction that is flexible enough to be applied to the construction of complete new permanent platforms, temporary platforms, and for the extension of existing platforms in main-line, light-rail, depot and underground locations.

Aesthetically pleasing, the platform surface can mimic traditional construction appearances or be tailored to give a more modern, architectural feel, while still complying with existing passenger-safety requirements.

To complement the system, the company is developing a range of standardised and modular products including car parks, buildings, footbridges, and sports halls.

Typical of the integrated approach that Corus is taking with its 'solutions' offerings, Modular Systems brings together the expertise of Corus Metal Services, Corus Rail Consultancy, GrantRail, Corus Research, Development and Technology, and the Corus Construction Centre.

The unique aspect of the system is that it is adjustable in height and reach both during and after installation. This is a great benefit where track changes occur or the kinetic envelopes of the rolling stock are altered.

Adjusting the line and level of the modular platform is easily carried out compared to the expensive and extensive adaptation and rebuild required on all other platform systems. The other highly advantageous benefit is that the bulk of assembly is carried out as a 'Green Zone' operation, meaning that reliance on track possession is limited.

Further, for the possessions that are necessary, line isolation or Tiii's are not required.

Tii possessions are adequate, which makes platform installation less costly and easier to programme within the operational train timetable. Other spin-offs include the lightness of the platform components, making mechanical handling unnecessary and making access to difficult locations economically achievable without costly disruption to train services. The platform comes with 'in-built' modular advantages of consistent factory quality, cost certainty, flexibility and adaptation, and an aesthetically pleasing design.

Modular Platform System benefits:

Architecturally pleasing with choices of component type and colour as well as a range of innovative structure designs.

Pre-designed system: part of the intrinsic value of the system is derived from offering a complete package that includes both the generic system design and site-specific detail design for each platform location. Furthermore, full design liability for the platform system provides single-source responsibility.

Since the platform system relies on a standard design, the outline design can be preapproved, particularly as site-specific detail is based on a range of standard available details.

Adjustability in both horizontal and vertical planes for re-gauging.

Versatility: our system brings the advantage that a platform may be dismantled and re-erected at a different location with reusability of many standard components.

This is vastly more cost-effective than demolition and rebuild. Future traffic requirements may dictate platform movement and/or extension and the system is designed to accommodate such variations.

Design flexibility: the system may be used in any location and for any type of platform such as island or restricted-access sites and for platform extensions. The system may be sited on curves. Alternative finishes are offered to suit planning requirements or customer preference. It is an inherent benefit of our system that its advantages become more significant as access becomes more difficult and the line more heavily trafficked.

Lightweight system both in individual components and as a finished installation.

This results in all individual components being easy to handle with no mechanicalhandling equipment required during the assembly process. Also, the finished structure is able to sit on poor ground, over tunnels or sited on bridges.

Modular benefits of prefabrication/component assembly off-site in factory conditions. This has the dual benefit of consistent quality of assembly to an accredited standard and, on site, significantly reduced construction time.

Benefits are greater over alternative platform systems where sites have restricted access or limited possession opportunities.

Cost savings on whole installation compared to alternative platform types.

Reduced site time and reliance on possession working significantly reduce labour for installation and safety-critical and possession-management staff.

Safety commitment: fewer personnel on site over a shorter duration and effectively 'single trade.' Programming, risk assessment and monitoring are all simplified over alternative platform systems.

Proven product: the system is proven and is performing on a daily basis at a number of locations on the rail network.

Cost certainty: modularisation leads to a quantified procurement programme. This leads to certainty of cost/installation for all work above ground. In the event of variation, the effects are readily evaluated.

Significantly reduced requirement for possession times and no Tiii isolation requirement.

Technically proven to meet and exceed all current Railway Group Standards. Policy of continuous improvement to ensure that the product maintains this position.

Modular Systems has been contracted to build a permanent platform at Barry Waterfront Station in South Wales. In addition, it will supply a temporary platform for two years during remodelling works at St Pancras for the London Terminus of CTRL, working with Mowlem Rail. The work programme limited the installation period to a single 54-hour possession. A study on all platform types demonstrated that this platform provided the only solution:

Only platform type to meet the limited time period requirement for installation.

Gave value for money compared to alter native platform systems-winning on both cost and time.

Meets and exceeds the design criteria for mainline stations.

Modular components provide a high level of reusability for future platform requirements.

Uniquely adjustable to meet any site changes - essential on work of this nature.

Lightweight system gives significant advantage over existing brick arches in this location.

Aesthetically pleasing and confidence inspiring to both client and passengers.

One-stop solution, designed, fabricated and installed by Corus.

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