Services on the Takasaki Line are typically divided into three categories: services to or from Ueno, Shōnan-Shinjuku Line services, and Ueno-Tokyo Line services. Between Ueno and Ōmiya, trains share the track with the Tōhoku Main Line, both of which serve as de facto express services compared to the parallel Keihin-Tōhoku Line. Northbound trains mostly terminate at or, with some at or. Southbound trains mostly travel through the Shōnan-Shinjuku Line to, or the Ueno-Tokyo Line to, on the Tokaido Line, with very few terminating at Ueno. Service on the line is provided by 15-car E231 series and E233-3000 series four-door suburban commuter EMUs with two Green cars; north of Kagohara, this is reduced to 10-cars.
Prior to the opening of the Joetsu Shinkansen in 1982 and the Nagano Shinkansen in 1997, many Niigata- and Nagano-bound limited express and express services used the line, including the Toki, Asama, and Hakutaka. However, the Shinkansen reduced the need for most of these limited express services, and only a few remain. These include:
Akagi / Swallow Akagi
Kusatsu
Minakami
Local/rapid services
Commuter rapid
Commuter rapid services operate on weekday evenings only. They operate between Ueno and Maebashi/Takasaki.
Rapid ''Urban''
Since March 2015, Rapid Urban services now run from or on the Tokaido Line, through the Ueno-Tokyo Line, to Takasaki. This service stops at every station on the Tokaido Line, and skips some stations on the Takasaki Line.
Local
Local trains run approximately four times hourly; one or two of those terminates at Kagohara, while the rest terminate at Takasaki, Shin-Maebashi, or Maebashi.
Shōnan-Shinjuku Line services
Within the Takasaki Line, Shōnan-Shinjuku Line special rapid and rapid trains are each operated once per hour. Unlike regular Ueno bound or originating trains, they bypass Saitama-Shintoshin Station as it has no platform for the tracks used by the Shonan-Shinjuku Line. Previously bypassed Urawa Station now has a newly constructed platform that entered service in March 2013. All trains are 10- or 15-car E231 or E233 series EMUs.
Special Rapid
Special rapid trains operate once hourly to Takasaki, making limited stops. They skip Ebisu Station.
Rapid
Rapid trains operate once hourly to Kagohara, stopping at all stations while within the Takasaki Line; this increases 2-3 times an hour during the mornings and evenings, when Takasaki-, Odawara-, and Kozu-bound trains also operate. North of Kagohara, all services are operated with 10-car trainsets.
Past services
Limited Express
Akebono
Hokuriku, Noto
''Home Liner Kōnosu''
Four trains bound for Kōnosu depart Ueno every weekday evening. Passengers can board only at Ueno; all other stations are for disembarking only. Service is provided by 7-car 185 series and 9-car 489 series EMU trainsets.
Station list
Local trains, excluding Shōnan-Shinjuku Line through trains, stop at all stations.
For limited express, express, and seasonal rapid Moonlight Echigo services, please see their respective articles.
Legends:
● : All trains stop
|: All trains pass
▲: Only some southbound Commuter Rapid services stop
■: Shōnan–Shinjuku Line trains stop, but use dedicated platforms on the Tohoku Freight Line
∥ : Shōnan–Shinjuku Line trains do not travel within this section
Rolling stock
E231 series EMUs
E233-3000 series EMUs
History
The Nippon Railway Co., the first private railway company in Japan, opened the Ueno - Omiya - Shinmachi section in 1883, and extended the line to Takasaki the following year. The company was nationalised in 1906. The line was double-tracked between 1927 and 1930, and electrified in 1952.
Former connecting lines
Honjo Station: The Honjo Electric Railway operated a 7 km line to Kodama, electrified at 600 V DC, between 1915 and 1930.
Kuragano Station: The Iwahana Light Railway operated a 3 km line to Joshu Iwahana between 1917 and 1945. In 1967, an approximately 1 km siding was built on the alignment to serve an industrial area.