(FILES) A Vellink Intelligent Metro/Regional Train by Chinese CRRC is on view at the InnoTrans International Trade Fair for Transport Technology on September 22, 2026 in Berlin. From AI-assisted trains to autonomous road shuttles, Germany's rail operator Deutsche Bahn -- long the country's laughingstock for its poor punctuality -- is working on the future of mobility. (Photo by John MACDOUGALL / AFP via Getty Images)