People inspect the interior of a mockup at scale of Alstom's S-Bahn commuter train for the western German Rhineland region at the InnoTrans International Trade Fair for Transport Technology on September 22, 2026 in Berlin. From September 22 to 25, 2026, around 600 companies from the Railway Infrastructure and Tunnel Construction sectors will present their latest products and services, ranging from digital planning and monitoring systems to innovative construction methods and sustainable solutions for Tunnel Construction and infrastructure management. (Photo by John MACDOUGALL / AFP via Getty Images)