1 Tunnel –v- Surface Routes A UK perspective from Alan Dyke Former MD Channel Tunnel Rail Link Project

2 Trans European Network

3 Rail Link into Central London

4 High Speed Railway London to Channel Tunnel

5 UK’s Channel Tunnel Rail link 110 km of new high speed railway between central London and the Channel Tunnel to Continental Europe successfully completed on time and on budget Not just a new railway but the catalyst for huge regeneration of derelict industrial waste lands, environmental improvements and the refurbishment of London’s historic St Pancras Station.

6 London Route Choices Route would have to cross 20km of heavily built up residential and industrial development. A New surface alignment – Too expensive and virtually impossible to obtain consents Reuse existing railway corridors – possible as routes exist, but cost, disruption and risks made the option unattractive. New Tunnel Route – Considered to be high risk and expensive.

7 Reuse Existing Railway Routes Obvious choice! But :- Displacement of existing traffic, Consequences difficult to predict and cost impact uncertain. Risk arising from the condition of the existing assets. 150 year old infrastructure not fit for new purpose. Safety Risk. Working alongside live railways and roads, likely to cause additional accidents. Alignment constraints would impact performance Environmental mitigation works extensive and indeterminate.

8 New Tunnel Route Traditional view – High risk of surface settlements or even collapse, programme delays and cost increases. Crude technology. CTRL Experience – Tunnels can now be delivered safely at a predictable cost and programme outcome. Using professional management and sophisticated, but proven technology.

9 The solution Access into central London via 36 km (23 miles) of 7.15m (23ft 6in) internal diameter tunnel. 18 km of route Route links derelict sites across east London and at the terminus, providing ideal construction sites and future development opportunities

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11 Have Vision CTRL project would not fly on transport benefits alone. By looking for wider benefits in property gains and environmental improvements the politicians and general public were won over. Capturing the property benefits to contribute to the project costs requires long term planning - Vision

12 Key elements to success Informed Client – Investment in planning and design. Experienced and professional Project Management team Selection of alignment and construction sites. Holistic assessment of cost, risk and opportunities. Early contractor involvement, but still with competition on price. A Contract that has incentives to all parties. A Specification that sets out performance.

13 CTRL Delivered 36 km of bored tunnel driven in 19 months, using six E.P.B.T.B.Ms, ahead of schedule and on budget. Rate per metre of bare tunnel £12,000. or £250 per cubic metre excavated. That was about half the price of comparable tunnels. A twin tunnel route under London at £24 million per km

14 Twin Tunnels

15 CTRL Delivered No settlement damage to surface properties. Tunnel 25 metres average depth, face loss < 0.5%. No trucks on the roads, rail and onsite disposal utilised. No disruption to the every day life of London. No serious accidents. 45 ha of reclaimed low-lying land, now the site of London 2012 Olympic Park.

16 Stratford site of the 2012 Olympics

17 CTRL Delivered £12 billion in regeneration investment for an outlay of £6 billion for the new railway 2hrs 15 minutes London to Paris New high speed commuter line into London Refurbishment of an historic London station; St Pancras International

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19 Thank you for Listening Come and see our high speed railway and the regeneration benefits that it has created Alan Dyke