How a 3D Underground Model is Shaping Vienna’s Transit Future

• Proeksa Meas
• 31 October 2026

As Vienna’s population continues to surge and tourism hits record-breaking highs, the Austrian capital is looking downward to secure its future. The city is currently boring a brand-new metro line through some of the trickiest, most varied geological terrain in Europe—guided by an innovative 3D subsurface model that began, fittingly, on a rooftop. A Legacy Rooted in Coffeehouses and Soil Mechan...