EISL B
£ million |
|
---|---|
Station | 58 |
Airport walkway | 6 |
Airport crossing | 53 |
Newbridge - Ratho quadrupling | 15 |
Rail junctions and viaducts | 137 |
Road and tram bridges | 55 |
Rail trackbed | 20 |
Other civil works | 4 |
Rail trackworks | 50 |
Rail signalling and communications | 25 |
Rail electrification | 17 |
Land | 35 |
Sub-total | 474 |
Optimism bias (44%) | 208 |
Total estimate | 682 |
Less: savings from simultaneous construction | -82 |
Reduced estimate | 600 |