Saikyō Line
railway line in Japan
The Saikyō Line (Japanese: 埼京線, romanized: Saikyō-sen) is a 36.9-kilometre (22.9 mi) Japanese railway line operated by the East Japan Railway Company (JR East). It connects Ōsaki Station in Shinagawa, Tokyo, and Ōmiya Station in Saitama Prefecture. The line's name is a portmanteau of the names of the two areas it connects, using the first syllable of Saitama and the last syllable of Tōkyō.
At the northern end of the line, some trains continue beyond Ōmiya to Kawagoe on the Kawagoe Line. At the southern end, many Saikyō Line trains continue beyond Ōsaki to Shin-Kiba on the Rinkai Line, operated by Tokyo Waterfront Area Rapid Transit (TWR), or to Ebina on the Sotetsu Main Line, via the Sōtetsu Shin-Yokohama Line.
Route
From south to north, the Saikyō Line runs on the Yamanote Freight Line, parallel to the Yamanote Line, between Ōsaki and Ikebukuro. Between Ikebukuro and Akabane, it runs on the Akabane Line (赤羽線). Between Akabane and Ōmiya, trains use a line purpose-built for the Saikyō Line, which is classified as a branch of the Tōhoku Main Line and runs parallel to it.
The line's maximum speed is 95 km/h (59 mph) between Ōsaki and Itabashi, 90 km/h (56 mph) between Itabashi and Akabane, and 100 km/h (62 mph) between Akabane and Ōmiya.
Service
There are three types of trains on the Saikyō Line: "Local" (各駅停車, Kakueki-Teisha), "Rapid" (快速, kaisoku), and "Commuter Rapid" (通勤快速, tsūkin kaisoku).
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