The is a railway line in Ibaraki Prefecture, Japan, operated by the private railway operator Kantà  Railway. It is a non-electrified line which connects Toride to Shimodate.
The Jà Âsà  Line connects with the Tsukuba Express line, which opened in 2005, at Moriya Station, the only interchange other than at its two termini.
In fiscal 1999, the Jà Âsà  Line carried an annual total of 14.16 million passengers (38,000 per day), making it the busiest non-electrified private line in Japan.
Almost all services on the Line are Local trains, stopping at every station. Approximately 5 services in each direction each day operate as Rapid trains, only stopping at major stations.
Travel from Toride to stations north of Mitsukaido generally requires a change of train at Mitsukaido, though connection times are short.
Services operate approximately every 10-15 minutes during morning & evening peak hours (every 15 minutes on weekends & holidays) and every 20 minutes at other times. Travel time is approximately 30 minutes.
Services operate approximately every 30-60 minutes, with some extra services between Mitsukaido and Shimotsuma. Travel time is approximately 50-60 minutes.
The Jà Âsà  Railway opened the line on 1 November 1913. In 1945, the company merged with the Tsukuba Railway to form the Jà Âsà  Tsukuba Railway, which merged with the Kanto Railway in 1965.
Originally all single-track, of the line was doubled between Toride and Mitsukaidà  by 15 November 1984. However, due to the limitations brought by the Kakioka Magnetic Observatory located in Ishioka, this line is still not electrified.
The KiHa 310 vehicles are scheduled for withdrawal in July 2023.
This article incorporates material from the corresponding article in the Japanese Wikipedia.