|This article does not cite any references or sources. (December 2009)|
|B Kosei Line|
Special Rapid Service train (right) and Thunderbird limited express (left) at Hira Station
|System||Urban Network (Yamashina - Nagahara)|
|Locale||Kyoto Prefecture and Shiga Prefecture|
|Line length||74.1 km (46.0 mi)|
|Track gauge||1,067 mm (3 ft 6 in)|
|Electrification||1,500 V DC, overhead lines|
|Operating speed||130 km/h (80 mph)|
The Kosei Line (湖西線 Kosei-sen?) is a commuter rail line in Osaka-Kobe-Kyoto Metropolitan Area, operated by West Japan Railway Company (JR West). The line was completed in 1974 by the former Japanese National Railways (JNR) to provide faster access from the Kansai region to the Hokuriku region. It originates at Yamashina Station in Yamashina-ku, Kyoto and ends at Ōmi-Shiotsu Station in Nagahama, Shiga.
Its name means "the line to the west of the lake," indicating that it approximately parallels the western shore of Biwako. Trains continue from Yamashina to Kyoto Station on the Tōkaidō Main Line for convenient transfer to lines serving the Kansai as well as the Tōkaidō Shinkansen.
In addition to local, Rapid and Special Rapid services, limited express trains such as Raichō, Thunderbird and Nihonkai as well as freight trains are frequently operated on the line. Some of limited express trains stop at Ōtsukyō or Katata and others skip all stations on the line.
A direct Tsuruga - Kyoto line was included in the 1922 Railway Construction Act.
In the meantime, the Kowaka Railway Co. opened a line from Hamaotsu on the Keihan Ishiyama Sakamoto Line 51km to Omi-Imazu between 1923 and 1929. Between 1947 and 1965 there was a connection between Zeze on the Tokaido Main Line and Hamaotsu, allowing direct connection to the Tokaido Line.
The line was purchase by JNR and closed in 1969 so the Kosei line could be constructed over parts of the alignment, with the entire new line opening in 1974 as a dual track electrified line with CTC signalling.
The section from Nagahara to Ōmi-Shiotsu, originally electrified with 20 kV AC, was re-electrified to 1,500 V DC on September 24, 2006 enabling DC-only EMUs used in Osaka-Kyoto region to operate, and the Special Rapid through train service from JR Kyoto Line (Tokaido Main Line) was extended beyond Ōmi-Shiotsu to Tsuruga on the Hokuriku Main Line.
- S: trains stop
- s: Only extra trains stop
|Line name||Name||Japanese||Distance (km)||Local||Rapid||Special
|Tōkaidō Main Line||Kyoto||京都||5.5||5.5||S||S||S||Tōkaidō Shinkansen
Tōkaidō Main Line (JR Kyoto Line), San'in Main Line (Sagano Line), Nara Line
Kintetsu Kyoto Line
Kyoto Municipal Subway Karasuma Line
|Yamashina||山科||-||0.0||S||S||S||Tōkaidō Main Line (Biwako Line)
Kyoto Municipal Subway Tōzai Line
Keihan Keishin Line (Keihan Yamashina)
|Ōtsukyō||大津京||5.4||5.4||S||S||S||Keihan Ishiyama Sakamoto Line (Ojiyama)||Ōtsu||Shiga|
|Ōmi-Shiotsu||近江塩津||5.8||74.1||S||S||S||Hokuriku Main Line|
Special Rapid and Local
- 125 series (until March 2009)
- 201 series
- 419 series (until October 2006)
- 475 series (until October 2006)
- 485 series (Raichō services, until March 2011)
This article incorporates material from the corresponding article in the Japanese Wikipedia
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