Teiko Shinkansen

The Teiko Shinkansen (帝光新幹線) is a Teikonian high-speed railway loop line between the Teikonian cities of Kaijo (Hakata) and Akamayu in Daichi (and an extension of the Sanyo Shinkansen from Honshu). The Teiko Shinkansen consists of two lines forming a loop, the Western Corridor Line which runs parallel to the existing Akamayu Main Line and the Eastern Corridor Line which runs parallel to the Takezaki Main Line. Both are operated by the Teiko National Railways (TNRC). A third line currently underconstruction will connect the city of Dojimazaki and Aokuro running perpendicular to the existing loop line and is expected be operational by 2020. The extension to the Sanyo Shinkansen connects Kaijo to Osaka.

Western Corridor Route
Construction of the original Western Corridor Route began in 1975 and the first segment between Akamayu and Shin-Yatsushiro opened on 13 March 1982. This initial section cut travel times between the two cities from 130 minutes to 35 minutes, and reduced the time between Hakata and Akamayu from 4 hours to 2 hours. When the entire line was completed, the travel time from Hakata to Akamayu was further reduced to about an hour and 20 minutes.

In 1987, the Western Corridor Route was modified to pass the newly built capital, Tetsuya. The existing operational line today was completed in 1990.