Invitation to tender by negotiated procedure, deadline 13.03.2014, for technical documentation with analysis to optimize the shield drive advancement process for the bi-tube 9.5 km-long Filder tunnel excavation, Lot PA 1.2, Stuttgart 21 project. Duration of contract 33 months from award. Contact DB AG, Stuttgart, fax +49 6926521939, e-mail einkauf-s21nbs@deutschebahn.com. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=061818-2014. Ref. n.13TEI03741. 09/14.
