Tobu 50000 series

The Tobu 50000 series is a DC electric multiple unit commuter train type run by the private railway operator Tobu Railway in Japan since March 2005. Hitachi built it to its A-train concept, and it was the first use of aluminium-bodied cars on Tobu commuter trains. It was also the first Tobu train to carry bilingual Japanese and English automated passenger announcements. The family is made up of four variants, all formed as ten-car sets: the 50000 series for the Tojo Line, the 50050 series for inter-running services onto the Tokyo Metro Hanzomon Line, the 50070 series for inter-running on the Yurakucho and Fukutoshin lines, and the 50090 series, whose seats can rotate between longitudinal and forward-facing layouts for TJ Liner services. Production totals stated for the variants are 90, 180, 70 and 60 vehicles respectively.