New stations for underground lines U2 and U5 https://www.wien.gv.at/english/transportation-urbanplanning/public-transport/new-stations-u2-u5.html
In 2018 the construction works for the extension of the existing underground line U2 from Vienna City Hall (Rathaus station) and for the first section of the new U5 to Frankhplatz/Altes AKH started.
U5 station Frankhplatz/Altes AKH Station platform of U5 at Frankhplatz (model)