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Berlin's new U-bahn EMUs too wide for older tunnels

  • 19-01-2014 2:56am
    #1
    MGWR
    Closed Accounts Posts: 611 ✭✭✭


    The Local
    Stretches of Berlin's underground network will have to be rebuilt after the city bought new trains too wide for the tunnels, although transport authorities claim the work needed doing anyway.

    The two new trains were designed to be roomier for passengers, but these extra 10 centimetres of wiggle-room are proving a logistical nightmare, as the trains do not fit in older, narrower, stretches of the underground network.

    Safety regulations state that there has to be at least half-metre gap between the train and the wall of the tunnel, in order for people to be able to escape in an emergency, the Tagesspiegel newspaper reported on Thursday. ...
    Great way to make things more expensive for all.


Comments

  • #2
    goingnowhere
    Registered Users, Registered Users 2 Posts: 4,206 ✭✭✭goingnowhere


    Last time I checked U1/2/3/4 are defined as narrow, others wide

    So clearly running a wide train on narrow routes won't work..


  • #3
    APM
    Registered Users, Registered Users 2 Posts: 985 ✭✭✭APM


    Looks like Berlin really manages to screw things up time and time again. The airport is running years behind schedule.

    http://www.thelocal.de/20140108/berlin-airport-wont-open-this-year


  • #4
    corktina
    Closed Accounts Posts: 17,733 ✭✭✭✭corktina


    London Transport did similar years ago when ordering longer cars which fouled the loading gauge on change of gradient


  • #5
    vicwatson
    Registered Users, Registered Users 2 Posts: 28,404 ✭✭✭✭vicwatson


    APM wrote: »
    Looks like Berlin really manages to screw things up time and time again. The airport is running years behind schedule.

    http://www.thelocal.de/20140108/berlin-airport-wont-open-this-year

    Sounds like Ireland not Germany:)


  • #6
    Aard
    Registered Users, Registered Users 2 Posts: 4,905 ✭✭✭Aard


    vicwatson wrote: »
    Sounds like Ireland not Germany:)

    Sounds like real life. Even the Germans make mistakes. Ireland doesn't have a monopoly on getting things wrong, despite what many people would have you think!


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  • #7
    101sean
    Registered Users, Registered Users 2 Posts: 2,884 ✭✭✭101sean


    I'm surprised at half metre clearance requirement. Deep tube on LU there's feck all clearance between the tunnel wall and the carriage, emergency evacuation is through the end doors of the driving cabs, do the Berlin trains not have this facility?

    Physical size isn't the only criteria, the kinetic envelope of the train has to be taken in to account, how it moves on it's suspension.


  • #8
    vicwatson
    Registered Users, Registered Users 2 Posts: 28,404 ✭✭✭✭vicwatson


    Aard wrote: »
    Sounds like real life. Even the Germans make mistakes. Ireland doesn't have a monopoly on getting things wrong, despite what many people would have you think!

    Of that I agree, however its rare, unlike here:mad:


  • #9
    MGWR
    Closed Accounts Posts: 611 ✭✭✭MGWR


    Aard wrote: »
    Sounds like real life. Even the Germans make mistakes. Ireland doesn't have a monopoly on getting things wrong, despite what many people would have you think
    When these alleged "mistakes" are based on ignoring heaps and heaps of past precedent never mind established maths and engineering, it bears questioning the mere calling of them "mistakes", with all due respect, and points towards the politicisation of same.


  • #10
    Cookie_Monster
    Registered Users, Registered Users 2 Posts: 24,522 ✭✭✭✭Cookie_Monster


    from the OP's link
    A spokeswoman for BVG said the cost of widening the tunnels was included in the company’s maintenance budget.

    She said: “Even without the new trains we would have to rebuild the walls [of the tunnels] because in these places we have already reached the set safety distance," the BZ newspaper reported.

    So they're already widening them and it makes no matter. All sound pretty planned to me, story about nothing.


  • #11
    MGWR
    Closed Accounts Posts: 611 ✭✭✭MGWR


    Cookie_Monster wrote: »
    So they're already widening them and it makes no matter. All sound pretty planned to me, story about nothing.
    No, they're not already widening them, hence the story. Nothing is certain, not even BVG's continued operation of the U-bahn. If all tunnels had been widened already before these cars were bought, then there would not be a story.


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