the best. In May, the first trains were delivered, and trial runs began at the depot. In December, the tunnels were completed to Strandlodsvej, and the TBMs were moved to Havnegade, where they started to grind towards Frederiksberg. From 1 January 2000, the S-train service from Solbjerg to Vanløse was terminated, and work to rebuild to metro started. By February 2001, all tunnels were finished. On 6 November 2001, the first train operates through a tunnel section. On 28 November, laying of tracks along stage 1 and stage 2A completed. An agreement about financing stage 3 was reached on 12 April. By 22 May, the 18 delivered trains had test-run . The section from Nørreport to Lergravsparken and Vesterport was opened on 19 October 2002. Initially, the system had a 12-minute headway on each of the two services. From 3 December this was reduced to 9 minutes, and from 19 December to 6 minutes. Operation of the system was subcontracted to Ansaldo, who again subcontracted it to Metro Service, a subsidiary of Serco. The contract had a duration of five years, with an option for extension for another three. Trial runs on the next section of metro, stage 2A from Nørreport to Frederiksberg, began on 24 February. It opened on 29 May 2003. All changes to bus and tin schedules in Copenhagen took place on 25 May, but to allow Queen Margrethe II to open the line, the opening needed to be adapted to her calendar. This caused four days without a bus service along the line. Stage 2B, from Frederiksberg to Vanløse, opened on 12 October. Forum Station was nominated for the European Union Prize for Contemporary Architecture in 2005. In 2007, the Ørestad Development Corporation was discontinued, and the ownership of the metro was transferred to Metroselskabet I/S. Route M1 starts at Vanløse, where there is transfer to the S-train's lines C and H. The line starts elevated and is located in fare zone 2. The borough of Vanløse is mostly a residential area. The line then runs into the enclave municipality of Frederiksberg, running parallel to the Frederikssund Line of the S-train. At Flintholm, there is transfer to the C, F and H-lines of the S-train. Flintholm is the country's third-largest public transport hub. The station is located at the Grøndal Park, and is the borderline between the urban and suburban Copenhagen. The area around Lindevang is