Open invitation to tender, deadline 01.11.2013, for consultancy support in the preparation of the Concept Study (KVU) for possible Roatunnel on Rv 168, between Griniveien and Sorkedalsveien. Register interest and obtain additional details at www.doffin.no/Search/Search_Switch.aspx?ID= 305391. Contact Oslo kommun, Oslo, tel +47 02180. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=314865-2013. Bid Code: 103-BYM-2013. 38/13.