Construction
The economic case was heavily dependent on the fact that Airtrack should be a low-cost option as only 4 kilometres (2.5 mi) of new line would be required, mostly within Spelthorne. The remaining new infrastructure would consist of station improvements and associated facilities.
The key elements of construction work would involve:
- Tunnelling from Heathrow Terminal 5 to Stanwell Moor
- Construction of a new rail line across Stanwell Moor and Staines Moor
- Construction of a new section of track in Staines-upon-Thames town centre
- The remodelling of Staines station
- Building a train depot at Feltham
The scheme was estimated to cost about £673 million, of which about £150 million is expected to come from an operating surplus and the remainder from a government subsidy.
In the Airtrack project some stations used by its trains would be upgraded. It was intended that from Staines-upon-Thames the trains would use existing Network Rail tracks
Read more about this topic: Heathrow Airtrack
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