Marmaray

Marmaray is a 76.6 km-long intercontinental commuter rail line in Istanbul, Turkey. It comprises a rail tunnel under the Bosphorus strait and the modernization of existing suburban railway lines along the Sea of Marmara from Halkalı on the European side to Gebze on the Asian side. The procurement of new rolling stock for suburban passenger traffic is also part of the project. Construction started in 2004, with an initial target opening date of April 2009.