“NEU4” is the largest modernisation project in the history of the Vienna underground system.
So far, three of the five stages of the large-scale U4 modernisation project have been completed. A considerable amount of renewal and renovation work is being carried out in and around the stations.
… in the stations and on the track.
(City of Vienna & Wiener Linien):
Hours worked to date (2019)
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Business Unit Manager
Cegelec City Solutions Vienna
VINCI Energies Austria