This year started with a visit at an active U2 underground construction site, gaining first-hand insight into the complexity of large-scale infrastructure development beneath the city. The site visit provided a rare opportunity to observe ongoing construction work within a dense urban environment and to understand the processes involved in expanding Vienna’s underground transport network.

During the visit, students were introduced to key construction methods used in underground projects, including excavation techniques, structural systems, and safety protocols. Particular emphasis was placed on the coordination required between engineering, architecture, and urban planning to ensure efficient construction while minimizing disruption at the surface.

The excursion highlighted the technical, logistical, and spatial challenges of building below ground, offering a tangible understanding of how contemporary infrastructure projects are planned and executed within existing urban fabric.

A group of students in protective helmets and reflective vests at the entrance of a freshly constructed tunnel underground.
© Andreas Körner
Metro line tunnel with machines and building materials around, under construction.
© Andreas Körner
Underground metro line, showing the double-level floor height and stairs going up to the station entrance, construction in progress.
© Andreas Körner
A view of a commenced construction site of the new metro line.
@ Petra Gruber
A new metro line construction site with a group of visiting students.
@ Petra Gruber
An excursion group looking at architectural floor plans hung on a wall of a construction site of the new metro line.
@ Petra Gruber