The is a railway line in Tokyo, Japan, operated by Seibu Railway. It acts as a branch line of the Seibu Shinjuku Line, with direct trains to Seibu-Shinjuku Station in Tokyo. Stations O: stop SE: E: HL: All trains on this line stop at every station. Rolling stock Seibu 2000 series Seibu 6000 series Seibu 20000 series Seibu 30000 series A fleet of eight 10-car Seibu 40000 series EMUs is scheduled to be introduced from spring 2017, operating on the Seibu Ikebukuro, Seibu Shinjuku, and Seibu Haijima Lines. History 2 November 1928: Opened as Tamako Railway from Hagiyama to Moto-Kodaira (near Kodaira). 15 August 1932: Electrified at 600 V DC from Hagiyama to Moto-Kodaira. 12 March 1940: Tamako Railway merged with Musashino Railway (present-day Seibu Railway). 15 November 1949: Moto-Kodaira Station merged into Kodaira Station. 15 May 1950: Jōsui Line opened from Ogawa to Tamagawa-Jōsui. Omebashi and Tamagawa-Jōsui stations opened. 12 October 1954: Electrified at 1,500 V DC from Ogawa to Tamagawa-Jōsui. 18 March 1955: Electrification raised to 1,500 V DC between Kodaira and Hagiyama. 1 September 1962: Josui Line opened from Hagiyama to Ogawa. Renamed Jōsui Line from Kodaira to Hagiyama. 7 November 1967: Double-tracked from Kodaira to Hagiyama. 15 May 1968: Haijima Line opened from Tamagawa-Jōsui to Haijima, Seibu-Tachikawa station opened. Jōsui Line renamed Haijima Line. 25 March 1979: Omebashi Station renamed Higashi-Yamatoshi Station. 7 December 1979: Double-tracked from Hagiyama to Ogawa. 12 December 1983: Musashi-Sunagawa Station opened. 1 December 1983: Double-tracked from Musashi-Sunagawa to Seibu-Tachikawa. 5 March 1987: Nishi-Ogawa passing loop opened. Double-tracked from Nishi-Ogawa to Higashi-Yamatoshi. 2 November 1988: Double-tracked from Higashi-Yamatoshi to Tamagawa-Jōsui. 29 March 1991: Double-tracked from Ogawa to Nishi-Ogawa, Nishi-Ogawa passing loop abolished. 14 June 2008: Haijima Rapid service started. The service stopped at: Kodaira, Tamagawa-Jōsui, Musashi-Sunagawa, Seibu-Tachikawa and Haijima stations. 30 June 2012: Haijima Rapid service abolished. References External links route map Haijima Line Railway lines in Tokyo Haijima Line Western Tokyo 1067 mm gauge railways in Japan Railway lines opened in 1928