Open invitation to tender, deadline 21.04.2017, for planning services for the project construction of a fourth track in the Stadelhofen station and the second tube of the 1359 m Riesbach railway tunnel at Zurich. The duration of the contract is from 02/10/2017 to 30/09/2020. Further information from http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR=947339 or http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR=952759. Contact SBB, att.n Marc Weber-Lenkel, Zurigo, email firstname.lastname@example.org. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=068168-2017. Ref.n. PRODES EA 2030/35. 10/17.