Select Committee on Crossrail Bill Minutes of Evidence


Examination of Witnesses (Questions 19100 - 19119)

  19100. Mr Straker: No, I do not wish to re-examine, thank you very much, sir. I do not know whether you, sir, or your colleagues have any questions for the witness?

  19101. Chairman: Thank you very much, Mr Thomas.

  19102. Mr Straker: Thank you very much, Mr Thomas.

  The witness withdrew

  19103. Mr Straker: Sir, I have no further evidence that I wish to call before you.

  19104. Mr Mould: Sir, I would like to ask Mr Berryman, if it is convenient, to explain one or two points in relation to the interim decision proposal we put forward in the light of some of the concerns.

  19105. Chairman: I think that is advisable. I was going to ask you to call him anyway.

  19106. Mr Mould: I am glad we think the same way on that.

  Mr Keith Berryman, Recalled

  Re-examined by Mr Mould

  19107. Mr Mould: You are familiar to everybody in the room, I think, so I do not need to introduce you again. Mr Fry, please, can we have up the Petitioner's exhibit 05-004.[26] Mr Berryman, here we see the south side of the Romford station structure, yes?

  (Mr Berryman) Yes.

  19108. And there is the existing substandard ramp giving access to the structure at this point. Can you just take the Committee through, please, what the current position is in relation to the use of that ramp, and what is now being proposed by Crossrail in response to the Committee's interim decision in July?
  (Mr Berryman) The ramp at present runs up to a door just here, where there is a bell which the passengers can ring and someone will come and open the door. I think the opening time is variable, but we estimate on average it is two or three minutes for that to happen. This ramp, which is actually quite steep, people can get up there and ring the bell and go in and from the level that they get to when they have gone through the door, there are ramps up to the platform, so it does provide a substandard MIP access.

  19109. Can we please then turn, Mr Fry, to 14704-060.[27] Just to orientate ourselves, this is a computer-generated image showing the basic structure of the proposed new station and we see here the existing Victorian structures which support the main line and the branch line, the local lines I should say, and the existing ramp enters the station structure at this point here, does it not?

  (Mr Berryman) That is correct, yes. Behind the large brick above the structure.

  19110. And there is a passageway at high level, is that right?
  (Mr Berryman) An intermediate level passageway, yes, which goes under the platforms and allows people to get between the platforms.

  19111. Those who are able to enter the station on request at this point, they enter behind the existing gatelines, is that correct?
  (Mr Berryman) That is correct, yes. The idea of the person coming to open the gate is not that he just opens the gate, he also checks the tickets.

  19112. By reference to this image, tell the Committee what is proposed by Crossrail both in terms of engineering works and also the operation for the new arrangements for the proposed ramp.
  (Mr Berryman) What we proposed to do is to build a new ramp which meets modern standards on the access ability requirement, basically that means it is a shadow of gradient and has resting points where people can rest. There is not sufficient room to put it where the existing ramp is because the length is not long enough to get the required gradient. Inevitably, it would be too steep, so what we are planning to do is to put it behind there with a dog leg in it so that the bottom of the ramp is almost level with the top of the ramp, in plan I should say, and it rises up in two legs. It runs that way and then that way.

  19113. So under the new arrangements you get fully a compliant journey from ground level up to the entrance, yes?
  (Mr Berryman) Correct.

  19114. And then what happens?
  (Mr Berryman) Then it is exactly the same as happens now, someone comes and lets you in and then you go through this corridor and up one of the ramps to get you to the relevant platform.

  19115. The point made by the borough council is, why can the operational arrangements not be changed so as to provide, I think it described as a ticket barrier, ticketing facilities and so forth so one does not have to request entry from a member of staff at this point, one can come through with the wonders of modern technology, Oyster cards and so on?
  (Mr Berryman) The first thing to say is that passageway is relatively narrow and to fit the number of gatelines in there that you would need to have a meaningful access which would be quite difficult. One obvious point is, as this is a PRM access, you would need to have a gate to allow wheelchair users in and that would take up a significant proportion of the width. In addition, gatelines have to be manned all the time, all the time they are open anyway, and so that would require facilities for someone to stand there in a little hut or something like that and it would be imposing an operational burden on the railway permanently.

  19116. So the existing arrangements in that respect will continue, but in so far as the proposed new station is concerned, as a matter of generality, I think we have explained that access can be made through the main proposed station entrance and then fully-compliant facilities for people of restricted mobility.

    (Mr Berryman) Indeed. There are DDA accesses from the north, in any event, through the gateline here and up the lifts, and there is a direct lift from the concourse level up to platform level. This is for the eastbound platform and this is for the westbound platform on the station, so there would be a direct link from this level to the platform.

  19117. I pointed out the exchange you had with the Chairman last time and our willingness to carry out further detailed work here to see if we can provide access.

    (Mr Berryman) Yes. I think it is worth pointing out that our focus over the period when we were preparing the additional provision was on designing those works for which an additional provision is required. Putting an entrance in here is something which will not require an additional provision, it is something that we can agree in the course of the detailed planning negotiations with the local authority, so we have not really done very much about this. We have focused primarily on the ramp and preparing the additional provision for that ramp.

  19118. The only other matter I wanted you to touch on is the more ambitious aspiration of the Council, which they repeated today, to drive a new entrance through this structure, if you call it that. [28]

  (Mr Berryman) Yes, I think there are a number of issues to talk about, but basically the same things that we spoke about in the summer. There are planning, architectural layout problems with it in terms of getting the people in through here, how you deal with them, getting access to the escalators and so on, but the main problem which concerned me is the structural issue of how we make a hole through this structure. It is worth briefly explaining how this works: this buttress structure is rather like a viaduct sitting on its side so if you imagine that earth or rubble, or whatever is inside this abutment structure, is exerting pressure in that direction then what that is being resisted by is the arch action of these ribs here, these arches here. So you can imagine the earth pressure is trying to push it out and the arches are resisting it. The load from those arch actions is actually passed down through the buttresses in a sort of diagonal way. In addition, at the top of these buttresses you have got arches which support the structure of both, the railway, the station platforms, so the very end of these nibs here is under tremendous force, particularly at the bottom because they are resisting both the horizontal force from the vertical force and it is breaking through those which would be the thing which causes us concern. In addition, the existing ramp structure is providing significant deadweight at the bottom of that abutment structure which, we think, is helping to resist those lateral forces. This is one of those areas where analysis is extremely difficult. It is a sort of thing where experienced engineers would look at it and say, "Do not do it, it is too difficult". I am not saying it cannot be done, very few things in engineering are physically impossible; it is a question of how much money you throw at it, how many resources and what risks you take. Because I knew I was appearing here today I went around to all our most senior advisers, one or two extremely eminent engineers, just to check I was not misleading the Committee and they were all of like view to me, that this is not an acceptable route to take.

  19119. Just coming back—
  (Mr Berryman) Sorry, before you start, can I just explain, this lot here is providing some deadweight at the foot of this structure which, we believe, is helping to resist lateral movement by these arches. Removing that would be a high risk strategy. If we were to do this I would not try to knock a hole through here, I would want to replace this whole structure which is obviously a very big job.


26   Committee Ref: A218, Romford Station-Existing southern ramp (HAVGLB-AP3-31-05-004). Back

27   Crossrail Ref: P139, Preferred Option Aerial View of the Ticket Hall (HAVGLB-14704-060). Back

28   Committee Ref: A218, Romford Station-Existing southern ramp (HAVGLB-AP3-31-05-004). Back


 
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