TW 400

The TW 400 is a type of tram vehicle formerly used on the tramways of Hanover, Germany, built from 1956 to 1958 by Duewag.

During the construction of the A tunnel of the Hanover Stadtbahn it was not foreseeable whether the new TW 6000 cars would be available in sufficient numbers.

Therefore, a number of TW 400 cars (called Breitraumwagen because of their body width of 2.35 metres or 7 feet 9 inches), was brought up to tunnel standards from 1969 onwards.

This involved: Since the tram cars were unidirectional vehicles, all stations on the A line have their platforms on the right in direction of travel.

This led to some problems, most notably the complicated layout of the station Lister Platz, with platforms stacked on top of each other.