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New railway tunnel in Istanbul

  • 30-10-2013 5:32pm
    #1
    Registered Users Posts: 326 ✭✭ John C


    The Marmaray tunnel opened on the 29th October.

    It runs under the Bosporus, a strait that divides Istanbul between Asia and Europe.
    This Bosporus Strait connects the Black Sea and the Marmaray sea. Hence the tunnel's name.

    This "Marmaray" connector should transport up to 75 000 passengers hourly.

    It crosses the strait at a depth of 56 meters and has a length of 1 400 metre.
    Travel time in this section is four minutes. It is hoped that traffic
    chaos in Istanbul will be reduced.

    Presently only trains in the Istanbul rapid area transit system use this
    tunnel. Later it is planned that long distance trains will use this tunnel.


    There is an article in the Irish Examiner.
    http://www.irishexaminer.com/breakingnews/world/turkey-opens-europe-asia-railway-tunnel-611582.html

    Details: Overall length: 13,6 Kilometre, 1 400 metre submerged.
    Technique: immersed-tube method.
    Cost: Greater than 2 500 Million Euros. Japanese Turkish consortium.


Comments

  • Registered Users Posts: 4,905 ✭✭✭ Aard


    The Marmaray tunnel is a truly fantastic project. Considering that Istanbul is a city of 10m+ people and there are only two road bridges connecting each side, this tunnel will do wonders for productivity in the city.

    It makes our own interconnector look like small potatoes!


  • Registered Users Posts: 18,887 ✭✭✭✭ murphaph


    The one we haven't had the gumption to even build yet.


  • Registered Users Posts: 571 BonkeyDonker


    Was this not delayed for years after they found an ancient boat yard on one side?


  • Registered Users Posts: 245 ✭✭ lanomist


    Will this tunnel reduce the travel time between the two international airports in Istanbul ?


  • Registered Users Posts: 4,905 ✭✭✭ Aard


    I don't think its a priority of the new railway to reduce inter-airport travel time. Will the Marmaray even go to the Asian-side airport?


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  • Registered Users Posts: 10,873 ✭✭✭✭ JupiterKid


    Sounds like a superb feat of engineering and another important link for the city of Istanbul.

    Given the intensity of seismic activity in the region, I presume the new tunnel is earthquake proofed up to a certain magnitude?


  • Registered Users Posts: 795 ✭✭✭ Jim Martin


    JupiterKid wrote: »
    Sounds like a superb feat of engineering and another important link for the city of Istanbul.

    Given the intensity of seismic activity in the region, I presume the new tunnel is earthquake proofed up to a certain magnitude?

    Some of the engineers don't sound too confident!:

    http://www.theguardian.com/world/2013/oct/29/istanbul-underwater-bosphorus-rail-tunnel-european-asian-earthquake


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