Select Committee on Crossrail Bill Minutes of Evidence


Examination of Witnesses (Questions 18600 - 18619)

  18600. If you turn to the comparison with Woodseer Street, paragraph 3.5.7, "Construction noise modelling of each site predicts that 12 residential properties would be likely to qualify for noise insulation at Hanbury Street and no significant noise impacts." Remember, again, that of those 12, three are the ones so extraordinarily affected that they had to be bought out. Going on, "Near the Woodseer Street site four residential properties would be subject to significant noise impact."[23] Please also ask yourselves if any of those properties at Woodseer Street are likely to be so extraordinary affected as at Hanbury Street? The answer is no because there are no properties which are so close to the site. Please also note that this analysis appears to ignore commercial properties, of which there are a large number at Hanbury Street.


  18601. So less impact and possibly significantly less impact at Woodseer Street, and less people overall significantly affected.

  18602. So what was the Committee told when it was making its decision? And this is the important thing: upon what did you base your decision? Day 38, paragraph 9517, Mr Berryman says, "As far as noise is concerned we think the impacts are pretty neutral, much the same on Hanbury Street and Woodseer Street ... There is really nothing to choose between them on noise grounds."

  18603. Day 39, paragraph 9918, Mr Thornley-Taylor, "It is possible we may find there is a higher residual significant effect at Woodseer Street than Hanbury Street. It is unlikely to come out better from the noise point of view." But it does. It may not be hugely different but, nevertheless, if you compare the two Woodseer Street has a lower impact.

  18604. On Day 53 Mr Elvin, in paragraph 11730 says, "The noise impacts will be comparable although different residential properties will be affected, notably a large number of flats facing the Woodseer Street site." Incorrect. With the mitigation three flats and possibly none with further mitigation.

  18605. So we have a situation where the noise assessments on which the Committee made its decision were wrong. If you had two sites and all other criteria were the same would you choose the one where less people—it does not matter how many less—were affected by noise, or a site where some people are so extraordinarily affected that they have to be rehoused? The answer must be the former, that is Woodseer Street. Indeed, on Day 39 paragraph 9872, when discussing having to take people out of flats around the Hanbury Street site, counsel says, "It is a pretty unpalatable option and something you would want to avoid if you could, is it not?" And Mr Berryman says, "Yes, of course." So if you chose Woodseer Street you would not have to rehouse anyone, and you would not have to buy out the flat owners at number 63 Princelet Street, and potentially only four properties with noise mitigation would be affected.

  18606. In our opinion this all supports the retro-fit approach which we fear has been applied by the Promoter from the outset, that is select the route and then do the analysis in such a way that it does not jeopardise the original choice. This is clearly the case when you come to look at the southern route, which the Promoter has considered in response to the undertaking given by WHRA, and which Kay Jordan for the SSBA will detail for you later.

  18607. I want to take you through the lorries because, again, I know that in the decision you thought that the Petitioners had been overstating the problems. I want to take you through the points on the new SES on lorry movements. SES3, paragraph 3.4.54: " ... an average of 32 lorry movements per day for the peak construction period of nine months ... At other times typical lorry movements around 12 movements per day are still expected."[24] Paragraph 3.3.14: "The main construction works at Hanbury Street under the revised strategy will be phased over 46.5 months with the major civil works over 25.5 months. Peak activity, the sinking of the shaft will take place for nine months of those 25.5."


  18608. I now want to look at what the Committee was told by the Promoter in its evidence. Day 39, paragraph 9812, Mr Berryman: "We are showing one a day for the duration of most of the works with possibly two a day for a few months, but I would be very surprised if our heavy lorries exceeded that number." Mr Elvin, summing up on day 43, paragraph 11735: "The main construction of the shaft is now likely to be two years at worst case with only 15 lorries a day, dropping to a single vehicle no more than once a day after two years." So the Committee reached its decision having been told that there would be 15 lorries rather than the 32 now referred to for nine months; and having been told that after two years there would be one rather than the 12 now referred to. Tower Hamlets will allow working hours of eight to six, Monday to Friday, and that was substantiated by Mr Berryman on Day 38 at paragraph 9576, where he says: "This will be a normal daytime site." Day 43, paragraph 11738, Mr Elvin says, "Core working hours are to be eight to six." Mr Elvin goes on to say that movements of lorries will not take place at night. So ten hours in all per day. Also, I think there was an undertaking given to the schools that the hours would be further restricted because of the neighbouring schools. So we can assume ten hours at best. A lorry movement is two journeys—one arriving, one leaving. The point was made by Mr Elvin that the lorries will follow a circular route, but this is actually irrelevant to those around the shaft site—they will be affected by both the arrival and departure. They will experience an arrival or departure of the lorries every nine minutes for the peak period of construction. If my maths serve me right that is ten hours, divided by 60 to give the minutes, divided by 64, which is the number of journeys, which equals nine. During the space between those nine minutes the lorries have to be unloaded and loaded. Is that possible? Otherwise, even if you assume that the traffic routes are circular it still equates to one every 18 minutes.

  18609. Please also bear in mind that although the point was disregarded by Mr Elvin in his summing up there will be future oversite development and that will extend the construction activity. Please also bear in mind that none of these estimates take into account construction delays—and I have never seen a building project that does not have substantial construction delays. So we do not think that the problems have been overstated, we think they have been understated by the Promoter and that the Committee has made its decision on incorrect evidence supplied by the Promoter.

  18610. So is the situation any less difficult at Woodseer Street? Day 39, paragraph 9881, counsel: "Traffic management is acknowledged to be an advantage of the Woodseer Street site?" and Mr Berryman answers, "Yes. I have to say it is a marginal advantage." But it is an advantage all the same, which we would say becomes a greater advantage the more traffic movements there are; and of course the evidence presented before you understates the number of traffic movements by a huge percentage.

  18611. So we now have a situation where on the new evidence Hanbury Street has greater impact in terms of noise, displacement of residents and traffic management.

  18612. I will turn very briefly to the vexed issue of the listed buildings, the seven-year monitoring—which, thank you, for which you have asked the Promoter to give an undertaking—the further assessments and protective measures for some of them, the 25dcb requirement for noise insulation to Christ Church, together with the potential damage to 40 or 50 listed buildings under the Hanbury Street alignment. Day 39, paragraph 9861, counsel says to Mr Berryman: "So far as it is possible to avoid tunnelling under or close to listed buildings, that is something that the Promoter recognises it would wish to do, is it not?" and Mr Berryman says, "Yes." So you now have greater impact at Hanbury Street: the noise, displacement of residents, traffic management of the site, and listed buildings.

  18613. Turning now to the size of the site, you will recall that the Promoter provided three different options for traffic access, only one of which had lorries on site and this was shown by the Spitalfields Society to be impossible. In reply, the Promoter said that its very detailed drawings of three options still needed more work. Where is that work? No one has seen it. Is it possible? So is Woodseer Street any easier? Day 39, paragraph 9873: counsel says: "Woodseer Street, of course, is a larger site and you can see that from the guidance we have looked at. That is acknowledged to be an advantage of the site in the June 2006 report, is it not?" Mr Berryman said: "Yes."

  18614. So we now have Hanbury Street, which has a greater impact in terms of noise, disruption to residents, traffic management, site size for construction working. Not only does it have a greater impact on environmental grounds but it provides more difficult working conditions for the Promoter. This is not my argument; this is the evidence which has been given by the Promoter in the new SES combined with the previous evidence given in the summer.

  18615. So why is Hanbury Street still the preferred option? The Promoter says engineering issues, but where is the evidence to support this? Two firms of eminent engineers, Arups for Tower Hamlets and Whitby Bird for the residents, did not agree with the conclusions reached by the Promoter and said that the case for Hanbury Street was not proven. I am asking the Committee to satisfy itself on proper evidence before making any final decision that the engineering difficulties are such as to prefer Hanbury Street.

  18616. To summarise: the only engineering issue is the requirement, if you follow the Woodseer Street alignment, to pass under the Bishops Square building, which has deep piles. You may not need to; nothing has been produced which says that an alignment is not possible which avoids the piles of Bishops Square. On Day 38, counsel for Tower Hamlets asked Mr Berryman if an iteration (which I think is another drawing of the line) along those lines had been done. Paragraph 9554, Mr Berryman said, "Something very similar has been carried out". Counsel said, "Have we seen it?" Mr Berryman said, "You have not seen it". You will remember that this is the one issue which Mr Berryman said had had many man years devoted to it and yet they had not shared this with Tower Hamlets with whom they were in long discussion.

  18617. I would ask the Committee to demand that the Promoter provides that iteration, which, after all, the Promoter says it has, to find out if that alignment works and to optimise it. Then you have no engineering difficulty at all and a better site on all the grounds referred to above.

  18618. Let us assume that that iteration does show that an operational curve is not possible and you still have to go under Bishops Square. So what? On Day 38 Dr Bowers, who is an expert on the Channel Tunnel Rail Link project, said that it is possible that the tunnels would need to go deeper, but that they had seen no evidence, and even if it was necessary it might be the case anywhere along the line, depending on the ground conditions. So the perceived problem is not particular to this area, and that even if this did prove necessary, as Dr Bowers said in paragraph 9347, "Both construction and noise mitigation would clearly be possible using well-established tunnelling and railway noise mitigation technologies. This arrangement is well within the bounds of past construction experience on other tunnelling schemes".

  18619. We would say that the Promoter is going to have to do that all along the line; it never knows where it is going to actually come across pile buildings. So the engineering difficulty may not be there at all and, even if it is, it appears to have been grossly overstated.


23   Crossrail Supplementary Environmental Statement 3, Mitigation and Residual Impacts, billdocuments.crossrail.co.uk (LINEWD-SES303-020). Back

24   Committee Ref: A212, Tunnel Alignments East of Liverpool Street, Feasibility Study Report, Volume 2-Whitechapel Station (SCN-20070130-016). Back


 
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