Tokyo city once had large scale tram network just as other large cities those days. Most of them were closed in 1960s, but one line has survived in this century. Two lines (Waseda-Oji, Oji-Miniwa Bashi) were jointted and now treated as one line (Toden Arakawa Line.) Toden means "Railway of metropolitan Government", which was the common name for Tram in Tokyo. Type 7000 and 7500 is refurblished cars, while 8500 and 9000 is newer type with inverter control.
都電荒川線は、唯一残った都電です。元々は王子を境に二つの路線でしたが、今は一体的に運用されています。7000, 7500形は更新車で、8500, 9000形がインバータ制御の新型車です。この路線は数少ない放射状路線として、中量交通機関としての役割を果たしています。