I again thank all noble Lords for their contributions. On the final point made by the noble Lord, Lord Rosser, I have already alluded to the fact that the Government will look to publish their response to the Select Committee report next week, which will certainly cover the two questions that he raised.
On the amendments, the noble Lord, Lord Berkeley, talked about shooting messengers. It is certainly never the intention of government to indulge in such activity.
We fully accept that there are challenges. There have been thorough reviews of the proposals behind such a large infrastructure project. I fully accept, too, that strong sentiments are associated with large infrastructure projects such as this, in their building and in the challenges posed in ensuring that we mitigate impact on the environment. As several noble Lords have said, such challenges should be looked at practically to see how best they can be addressed. Without such an approach, as the noble Lord, Lord Adonis, and the noble Baroness, Lady Randerson, well articulated, many an infrastructure project, and perhaps our railway as a whole, might not be present today. I was once told by a Parisian that when the Eiffel Tower was being constructed Parisians at the time strongly objected to such a monstrosity appearing in the middle of the capital city. I wonder what they would think wherever they are now. Nevertheless, I note the concerns that have been expressed and will address some of the issues that have arisen.
A number of the amendments that have been tabled for this Committee stage of the Bill have been fully considered by Select Committees of both Houses and look to alternative proposals for aspects of the Bill scheme. I am sure noble Lords will appreciate that two Select Committees have already spent a combined period of more than two years hearing evidence and considering all aspects of the proposed Bill scheme and alternatives to it. Those committees received representations from more than 3,400 petitioners and made their conclusions having explored all the relevant issues. As we move through the different stages of the Bill, it is important that we draw a line under such considerations.
On a review of the costs for phase 1 of HS2, I assure noble Lords and, in particular, the noble Lord, Lord Berkeley, that the costs have already been subject to intense analysis and review over several years and will continue to be reviewed for many years to come, and indeed during construction. Several noble Lords, including my noble friend Lord Framlingham, raised the issue of costs. I assure him and others that both the Public Accounts Committee of the other place and the National Audit Office, a body that already has a statutory function to examine proper allocation of public expenditure, have produced several publicly available reports on the costs of HS2. I am sure both bodies will continue to examine those costs as we move into the detailed design and construction stage and as more detailed costs information becomes available.
As noble Lords will be aware, an updated cost estimate for the project is also published at each new iteration of the business case, with the next such iteration due this summer. The project as a whole, including its cost estimate and business case, is subject to regular independent review by the Infrastructure and Projects Authority and the Commons Public Accounts Committee. I therefore do not believe or accept that further independent review is necessary at this time. The Select Committees and other committees that I have referenced have looked at the costs associated with the project. I say to the noble Lord, Lord Berkeley, that we have produced high-level cost estimates for our Euston proposals as well, but we have to be mindful that we need to keep certain detailed cost
figures commercially confidential as we go to market for the construction work. I am sure the noble Lord will acknowledge that officials in my department and the team at HS2 have sought to work with him and given time to listen to the proposals he has presented.
I also fully endorse the point that was well made by the noble Baroness, Lady Randerson, that those who may be suggesting alternatives or being critical of certain elements of the construction of HS2 are not against the scheme as a whole. Indeed, I know that the noble Lord accepts that part of the reasoning behind building HS2 is the economic case in terms of addressing issues of capacity. I know that he, as a great champion of the freight industry, also accepts that once we see the extra passenger capacity on HS2 it will release extra capacity for freight on existing lines.
I assure noble Lords that we have produced various costs for both the Select Committees, including funding costs and costs for key elements, but we will provide more detail as we move forward. It is also worth noting that an independent review of the HS2 Ltd cost estimate of a bored tunnel through the Colne Valley has been undertaken. The outcome of that independent cost review, undertaken by the lead non-executive director for the DfT, Ed Smith, has been published and concluded that the HS2 Ltd cost estimates were both reasonable and consistent. Other than delaying the railway, and in doing so adding additional cost, it is not clear to me what benefit the amendment would bring.
With regard to the alternative routes into Euston and the associated request from the noble Lord, Lord Berkeley, to consider a route east of Old Oak Common, I do not believe that this amendment is necessary or appropriate. The noble Lord knows that I respect his commitment to this subject. I know that he appeared before the Select Committees in both Houses to make the case for an alternative solution at Euston. Neither Select Committee saw fit to recommend his alternative solution, nor a value-for-money review as the amendment proposes.
Given that it is the role of the Select Committee to consider such matters and that both Select Committees, having considered all the available evidence on these issues, did not believe any further cost reviews were necessary, I do not believe that the amendment is appropriate at this stage. It would serve only to delay the beginning of construction once Parliament had authorised the project. Clearly, such a delay in and of itself would add additional and unnecessary costs to the delivery of the scheme, which I am sure is not the noble Lord’s intention.
The link to the west coast main line at Handsacre was also considered by the Select Committees of both Houses, which were the most appropriate forum for any subsequent amendments on this issue to have been made. It is also important to note that the link at Handsacre serves a dual purpose. It will allow services to run north following the completion of phase 1 but, following the completion of phase 2A, it will also allow high-speed services to continue serving Stafford, something that the people of Staffordshire value very highly.
As I said, the Select Committee of the other House spent considerable time hearing evidence from parties wishing to promote alternative environmental mitigation
proposals, including tunnel options in the Chilterns. The noble Baroness, Lady Mallalieu, spoke with great passion on this issue. I assure her that this work included reviewing the cost-benefit analysis of the various options. Ultimately, the Select Committee of the other place requested a 2.6-kilometre extension to the Chilterns tunnel, at an additional cost of £47 million, and recommended a 100-metre extension of the Wendover Green tunnel, at an additional cost of approximately £15 million.
However, the committee was clearly of the view that the environmental benefits of further tunnelling did not warrant the significant additional cost. The cost of the other proposed tunnel options ranged from £82 million to £485 million. While I am sure that those who favoured an extended tunnel in the Chilterns will continue to be dissatisfied that their proposals were not supported, I hope that they—including the noble Lord, Lord Stevenson, who could not attend this afternoon—would concede that the process allowed them to have their say and that we should now respect the outcomes of the process even if we do not always agree with them.
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Let me also assure the noble Baroness that we have looked to mitigation in a series of areas. For example, we have provided more than 50 assurances to Buckinghamshire County Council to further mitigate the impact of the new rail line. This includes 21 assurances on traffic and transport, a fund of £3 million towards additional environmental enhancements in the Chilterns area of outstanding natural beauty, a fund of £3 million towards additional mitigation in the Colne Valley, and a £1 million fund for additional mitigation and engagement on detailed design with stakeholders in the Calvert and Steeple Claydon area. In the area of the noble Lord, Lord Stevenson, we have provided half a million pounds for Great Missenden, a £1.2 million enhancement to the link road roundabout, and a further half a million pounds to provide a new school car park.
I fully appreciate the concerns of noble Lords in relation to traffic management, but I believe that Amendment 6 is also unnecessary. The nominated undertaker is required by the code of construction practice to prepare a route-wide traffic management plan. This will be developed in liaison with relevant highway and traffic authorities and the emergency services. It will also cover all traffic management issues in relation to HS2. In addition to the route-wide plan, the code of construction practice also requires the appointed nominated undertaker to prepare local traffic management plans in liaison with the relevant local highway and traffic authorities and emergency services.
I also assure noble Lords that once contractors have been appointed, they will be required to communicate regularly with parties affected by the works. Local residents and businesses will be informed appropriately and in advance of dates and durations of any closures of roads or public right of way, and will be provided with details of diversion routes at least two weeks in advance or when final details are available. Advance warning signs of road closures will be provided for users of roads and public of rights of way.
I therefore hope that noble Lords recognise that sufficient protections already exist in the commitments that have been made, and that the Government have sought to listen in addressing and mitigating issues of both noise and the environment. Any further requirements are unnecessary and will serve only to delay the start of construction on what most recognise as a vital infrastructure project. Furthermore, I believe that this House should respect the decisions of the Select Committees, whose members, as we have recognised, spent many hours considering many of the issues that have been discussed this afternoon in detail with the evidence in front of them before they came to their reasoned conclusions. Therefore, with the assurances that I have provided, I hope that the amendments will not be pressed.