die belebende Bedenkung

Executive chairman of HS2 rail project doesn’t understand speed and capacity

with 4 comments

13 Jan 2015, Economic Affairs Committee - HS2 economics, Q251 (extract)

Written by beleben

July 24, 2015 at 9:48 am

Posted in HS2

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4 Responses

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  1. Doesn’t explain why the London Underground doesn’t run at 9tph.


    July 24, 2015 at 10:33 am

  2. Odd then that for roads, uniformly moving slower traffic generally means moving more vehicles per hour – hence M25 variable speed limits reduce speeds to improve flow?

    Dave H (@BCCletts)

    July 24, 2015 at 12:41 pm

  3. Not just the House of Lords but also the House of Commons Transport Select Committee, so it looks like he really believes it.

    Transport Select Committee from Hansard
    17th November 2014 Q14

    Sir David Higgins: It is a case of gaining public confidence and gaining the confidence of the Houses of Parliament. I am not sure we were clear enough in the role that the new network provides capacity. It is a bit of a circular discussion because a railway line where trains travel at 220 miles an hour as opposed to 120 miles an hour clearly has nearly twice the capacity because you can have twice as many trains on it.

    An FOI request to HS2 asking for documentation to support his argument has failed to produce a reply.

    How is he going to get 18 trains per hour carrying 1000 people if they hardly stop anywhere?

    How can you gain public confidence if you tell porkies?


    July 24, 2015 at 4:13 pm

    • Indeed, in both cases he’s talking about line capacity (not the number of trains required, or whatever). Quel faux pas, as they say.


      July 24, 2015 at 4:54 pm

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