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LRT Testi-Bicocca M5-Precotto

Viale Fulvio Testi-Precotto M1-Anassagora

work completed

  • Feasibility study not completed
  • Initial design completed
  • Final design completed
  • Executive design completed
  • Works management completed

Stops: 8

Length of the line: 3 km (1.9 miles)

The first section was opened on 7 December 2002 and the second (Mattei – Precotto, Line 1) on 7 July 2007. The LRT has been designed to connect the university campus of Bicocca with the Line 3 (Zara station) and Line 1 (Precotto station); it runs from Viale Fulvio Testi to the district of Precotto. Crossing the Bicocca area the railway station of Milano Greco Pirelli and the Arcimboldi theatre. The Bicocca LRT presents an interesting variety of solutions, not all technical. Two sections have a grassed track, in other words with the rails hidden in a grass cover, which in the Via Emanueli section is also equipped with an irrigation system; in Via Pulci, the greenery is instead provided by a rock-plant, the Sedum, which requires neither irrigation nor cutting. The most distinctive section is the LRT tunnel, the longest in Italy and the only one travelled exclusively by trams. A 179 m (587 ft) section of the tunnel, which is 494 m (1,621 ft) long overall, was excavated using the blind hole technique in order to avoid interference with operation of the railway above. Access to the tunnel is via ramps in trenches with slopes of up to 43 mm/m, the steepest in the Milan tram network. At the deepest point of the tunnel, the rail surface is 12.5 m (41 ft) below street level, the distance necessary to pass under the railway tracks with a blind hole tunnel. The roof of the tunnel is only 5 m (16 ft) below the station square. A covering this thin is considered a limiting condition for a tunnel dug in loose soil (mostly sand and gravel) below sensitive installations such as railways. It was therefore necessary to accurately monitor surface deformation induced by the tunnel excavation operations. At the eastern edge of the railway tracks, the tunnel structures have been designed to withstand, above them, the proposed link between the Martesana goods yard and the Greco depot. The LRT has 8 stops: Rodi-Pulci, Bicocca Center, Greco Pirelli, Bicocca North, Mattei, Tremelloni, Tremolloni / Anassagora. The LRT has two interchanges: the M5 at Bicocca and the M1 to Precotto.