Hakone Tozan Railway to introduce new 4000 series train in 2028, Japan December 23, 2025 | Asia Pacific News, News Odakyu Hakone Co., Ltd. has announced plans to introduce a new 4000 series train on the Hakone Tozan Railway, operating on the mountain section between Hakone-Yumoto and Gora, with entry into service ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password