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News Release from: TPS | Subject: Isle of Man Airport
Edited by the Buildingtalk Editorial
Team on 24 January 2006
Isle of Man Airport chooses boulder
growth plan
Plans for extending the main runway at the Isle of Man airport have been opened to public consultation.
Plans for extending the main runway at the Isle of Man airport have been opened to public consultation The proposed extension follows recommendations by the Civil Aviation Authority (CAA) to increase the size of runway safety areas, called RESAs
This article was originally published on Buildingtalk on 19 Aug 2003 at 8.00am (UK)
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Runway starter extensions built within the RESAs will also allow larger 'regional' aircraft, such as Boeing 737s and Airbus A320s, to use the airport.
The proposals have been developed by TPS, the design and project management division of Carillion Business Services, working with Burroughs Stewart Associates, on behalf of the Isle of Man Government as client's representative and planning supervisor.
The former RAF (and RN) airfield has grown significantly since the Second World War and now accommodates 800,000 passengers and 28,500 scheduled flights each year.
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The proposals will enable larger aircraft from further afield to use the airport, allowing capacity to be increased to some two million passengers a year.
Although the CAA recommendations strictly apply only in the UK, the Isle of Man government has decided to follow UK regulations.
Due to various constraints, the runway extension will have to be built into the sea, and it is the proposal for this that is the main element of the public consultation.
A number of options were considered for the extension, but only two were considered appropriate: concrete decking on columns and a rubble mound.
Whole life cost models were built up for each option.
These financial calculations assessed the initial construction costs and ongoing maintenance costs over the predicted life of the structure.
"These models were very detailed, providing accurate projection of costs and quantities of materials required," said Peter Tindall, associate director of aviation at TPS.
"The model also enabled us to produce very detailed computer generated images of what each option would look like superimposed on the existing shoreline, which are also very usefully through the planning and public consultation stages." All the project data was held centrally, with access provided to the entire project team, including the client, via an extranet for viewing and updating.
Peter Tindall continued: "This 'collaborative working' and data sharing has greatly assisted the coordination of the project, and will continue to do so through the procurement and construction phases." Following further discussions with the Isle of Man Department of Transport, the solution chosen to be progressed to the public consultation, and subsequent planning application, was the rubble mound.
This would be built out into the sea using mainly sea-dredged material protected by a rock bund with an outer layer of 18 to 30 tonne boulders around the edge to withstand the waves.
The boulders will be quarried offshore and shipped to the Isle of Man by sea, with other bulk building materials also coming by sea to reduce the pressure on the island's roads.
A total of 440 hectares of existing land will be subsumed by the extension, but considerable planning work has been done to ensure the environmental impact of the extension is minimised.
There are measures in place to monitor, and mitigate losses, during and after construction, for plants, bats, birds, common lizards, common frogs and invertebrates where these are found.
Further monitoring and mitigation will cover marine, archaeology, air quality, traffic, public rights of way, landscape, noise and vibration aspects of the project.
Piers Burroughs, of Burroughs Stewart Associates acting as client's agent, said: "Every element has been considered and taken into account in developing the proposals for this project.
"The computer cost and visual modelling has been excellent, providing a real insight enabling us to choose the right options.
It is also useful for the public to get a grasp of what is proposed and what effect it will have." Subject to gaining planning permission construction could start as early as 2007, with the project being completed in 2011.
Faber Maunsell AECOM are the environmental consultants and ChandlerKBS the cost management consultants.
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