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. 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 Sanyo Shinkansen which uses the Teiko Shikansen track from Beika to Hakata connects Kaijo to Osaka. The Teiko Shinkansen also has a through-service to Tokyo and Serika and a line connecting Hakata to Oka through Renegawa is also underconstruction.

Western Corridor Route
Construction of the original Western Corridor Route began in 1975 and the first segment between Akamayu and Shin-Takao 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.

Eastern Corridor Route
The success of the Western Corridor Route spurred the construction of another parallel line running in the eastern side of the island. Construction of the line began in 1994 with the initial segment from Beika to Aokuro. The full line opened in 15 April 1998 connecting Hakata to Akamayu via Seirin and Takezaki prefectures. The Easter Corridor Route is the longest line of the Teiko Shinkansen.

Dojimazaki-Aokuro Route
The Dojimazaki-Aokuro Route is also called the Trans-Daichi Route has started its construction on 22 August 2016 and is expected to open by March 2020.

Other planned routes
There are plans to connect the Teiko Shinkansen to the high-speed network of Oka via the Kyokai Tunnel which is underconstruction. There are also plans to expand Teiko Shinkansen network to Samra.