Stadler to upgrade SZU signalling systems in Switzerland October 22, 2024 | Company News, Europe Company News, Europe News, News Stadler Signalling has collaborated with Sihltal Zürich Uetliberg Bahn (SZU) for a period of 10 years to upgrade signalling systems in Bern. The upgrade includes installation of new ‘ Eurolocking’ sig... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password