Sōtetsu Main Line
The is a railway line in Kanagawa Prefecture, Japan, operated by the private railway operator Sagami Railway (Sotetsu). It connects and . Services. Services on the Main Line are divided into four categories. Some trains travel along the Izumino Line west of to . Future developments. The Sotetsu Shin-Yokohama Line is currently under construction, linking Nishiya to Hazawa Yokohama-Kokudai, and further to on the Tōkyū Tōyoko Line. The line will allow through services to the JR Lines and Tokyu Lines towards the Tokyo Metropolis from 30 November 2019 and 2022 respectively. With the opening of this new  line, Limited Express and Rapid services will make stops at Nishiya, which facilitates transfer between services to central Yokohama and the Tokyo Metropolis. In addition, two new service types will be implemented. They are the Commuter Limited Express (通勤特急) and Commuter Express (通勤急行) services, which both operate through services from / to the Izumino Line. The former service will replace the current Limited Express on the Izumino Line, and will make additional stops at Nishiya and Tsurugamine. The latter service is a brand new service, making stops at all stations west of Nishiya. History. The line opened 12 May 1926 as  the steam-operated between Futamatagawa and (on the present-day Sagami Line). The line was extended from Futamatagawa to Yokohama in December 1933, and from the former station at (now closed) in November 1941. The line became the from 1 April 1943. Work to electrify the line commenced in June 1942, with the entire line between Yokohama and Ebina electrified by 20 September 1944. Work to double-track the line commenced in January 1957 between Yokohama and Nishi-Yokohama. The entire line was double-tracked by March 1974. The first air-conditioned trains (4-car 6000 series EMUs) were introduced  on the line on 3 July 1971. 10-car trains started operating on the line from 6 April 1981. Station ticket barriers were modified to allow use of the Passnet magnetic farecard from 1 October 2000. There was a short spur line which branched from Sagamino Station to the Naval Air Facility Atsugi air base. While the track remains in place up to the fence of the base, the line is no longer in use.