ARST and Stadler unveil world’s first hydrogen train for narrow-gauge railways, Italy July 1, 2026 | Europe News, News Trasporti Regionali della Sardegna (ARST) and Stadler Rail have unveiled the world’s first hydrogen-powered train designed for narrow-gauge railways at Stadler’s commissioning centre in Erlen, Switzer... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password