TICKETING & FARE COLLECTION BIM & PROJECT MANAGEMENT
Engaging BIM
As Building Information Modelling takes hold on large complex projects, the next step is for the wider supply chain to get involved, argues Mac Alghita, Hyder’s managing director for rail.
uilding information modelling, or BIM, is introducing a transformational change to how infrastructure projects are delivered. The time and cost saving elements of BIM are well-documented. What we’re fi nding at Hyder is that BIM also encourages and supports collaboration and is an extremely useful tool in communicating with key stakeholders. Whether it is the public, the client, the contractor, suppliers to the project, delivery partners or operations staff, BIM enables everyone to visualise the outcomes far better than the traditional 2D drawings.
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Whilst BIM may not be appropriate in all situations, it is a tremendous tool on complex, multi-discipline, large scale schemes, such as the Manchester Victoria station redevelopment.
Manchester Victoria is a major transport interchange with three interlinking elements: a tram stop operated by MRDL for Transport for Greater Manchester, a train station operated by Network Rail, and the Manchester Arena managed by SMG Europe.
As an integral part of the Northern Hub programme, the Manchester Victoria station redevelopment is intended to help relieve congestion at Manchester Piccadilly, create a new city centre link to Manchester Airport, and be a catalyst for growth to areas north of Manchester.
The redevelopment includes dismantling the existing station roof originally constructed in 1844 and replacing it with a new torus shaped roof. The structure comprises a steel- propped cantilever box girder superstructure clad with ETFE (ethylene tetrafl uoroethylene) cushions. A new steel mezzanine walkway will improve the existing high-level access between Manchester Arena and the station concourse. New retail spaces will also be provided within the refurbished station concourse area.
Refurbishment works to the Grade II-listed parts of the Victoria buildings to restore them to their former condition will be undertaken as part of the works.
A major part of the project also includes modifying the existing Metrolink layout and upgrading the current infrastructure at Victoria to cater for the increased passenger numbers. An additional platform will be constructed
within the station to facilitate a reconfi gured track layout, which will tie into the 2CC services planned by Metrolink.
BIM provides greater visibility
According to Chris Pike, Hyder’s rail bid director: “One of the main challenges we as an industry have from a technical perspective is communicating our design effectively to our key stakeholders.”
This is where BIM comes into its own. The model can be used to demonstrate how the design will work with greater clarity than a 2D drawing. Whoever the end-user may be (the client, contractor, public consultations), it enables us to illustrate what the scheme would look like from a variety of different angles. On Manchester Victoria, as well as other projects such as London Bridge, we created a virtual drive-through of the scheme. As a result, we are able to obtain buy-in at a very early stage because it removes much of the ambiguity associated with complex projects. The model enables people to visualise the size and shape of the scheme, access to it and how it will work.
Pike added: “As the project progresses, this degree of visibility will be extremely useful in the construction phase and the eventual handover to maintenance. The next step for the industry is to get everyone in the supply chain using a single BIM model in one collaborative environment.”
BIM encourages collaboration
Carl Elam, Hyder’s project manager overseeing the redevelopment, said: “To manage these multidisciplinary challenges, it was essential that all stakeholders in the project, including the clients, Network Rail and Transport for Greater Manchester, the contractor, Morgan Sindall, the architect, BDP, and Hyder, worked collaboratively to deliver the greatest value. In this context, the BIM model has become the single source of dimensional and construction
information on the project.
“Incorporating the highway, track, electrifi cation, bridge and building designs into this one model delivers several advantages – it enables instant clash detection. It provides the ability to interrogate the model from a variety of perspectives. The model is saved on the cloud, so it’s accessible across a wide range of devices, from PCs and laptops to tablets and mobile phones. So all parties can view it and comment on it at any given point in the project.”
The project was developed using a BIM Protocol based on BS 1192. The BIM model will continue to be used in the next phase to plan the complex construction sequences. Ultimately, it will be handed over to Network Rail with all the building information attached, as part of the Health and Safety File.
Ongoing innovation
The last 30 years have seen an enormous transformation in design – in that time we have made the journey from pen and ink, to 2D CAD, to 3D models, to where we are today, with information rich models to the nth dimension stored in the cloud and downloadable to tablet devices. It’s innovation that makes good business sense.
FOR MORE INFORMATION
T: +44 20 3014 9000 E:
mac.alghita@
hyderconsulting.com W:
www.hyderconsulting.com
rail technology magazine Jun/Jul 14 | 81
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