The E531 series is an electric multiple unit (EMU) train type operated by East Japan Railway Company in Japan. It was introduced by JR East on 9 July 2005 to replace the aging 403 and 415 series EMUs running on the Jōban Line from Ueno Station in Tokyo. The stock is a dual-voltage development of the DC-only E231 series suburban EMU design, and can run at speeds of up to 130 km/h (81 mph) in service.
An E531 series train on the Joban Line (in March 2019 Between Matsudo Station and Kanamachi Station)
An E531 series train on the Tōhoku Main Line in October 2017 near Shirasaka
An ordinary-class car with longitudinal seating in January 2022
An ordinary-class car with a mixture of longitudinal and transverse seating in January 2022
The 415 series is a dual-voltage AC/DC outer-suburban electric multiple unit (EMU) train type introduced in 1971 by Japanese National Railways (JNR), and later operated in Japan by East Japan Railway Company, Kyushu Railway Company, and West Japan Railway Company (JR-West).
A 415 series train on the Jōban Line approaching Abiko Station in July 2006
A Joban Line 401 series set in January 1985
A 421 series train on Sanyō Main Line in March 1978
403 series set K55 on the Jōban Line in 1985
