Exchequer District Railway
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| Overview | |
|---|---|
| Native name | 內史鐵, nups-sre′-qlik |
| Owner | Crown corporation |
| Area served | Inner Region |
| Transit type | Suburban rail Commuter rail |
| Number of lines | 11 |
| Number of stations | 283 |
| Daily ridership | 2,130,000 |
| Headquarters | Yellow House |
| Operation | |
| Began operation | 1969 |
| Headway | 10 – 15 minutes (peak) 20 – 30 minutes (off peak) |
| Technical | |
| System length | 595 mi (958 km) |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) standard gauge |
| Average speed | 60 mph (97 km/h) |
| Top speed | 100 mph (160 km/h) |
The Inner Region Regional Railway (Shinasthana: 內史鐵, nups-sre′-qlik; abbr. IRRR) is a network offering suburban train services around Kien-k'ang, the capital city of Themiclesia. The network is named after the Inner Department, a medieval department responsible for the administration of the city and its peripheral towns.
The suburban branch lines of the two national railways, National Rail and Themiclesian & Northwest, form the foundation of IRRR's network. Suburban services were offered by both railroads since the late 19th century but became increasingly unprofitable while demand only increased. Their suburban networks were purchased by the Crown in 1967, and services since were operated by the Inner Region Transit Board under the new brand of IRRR. Two new lines have since been added, and improvements to capacity and accessibility have been implemented.
The urban terminus of most IRRR services is the Twa-ts'uk-men Station. There are multiple stations allowing transfer to National Rail and Kien-k'ang Rapid Transit.