ADtranz low floor tram

[citation needed] This tram was developed by MAN for the Bremen urban transport system.

Characteristic of this tram is its ability to follow curves, which requires a special track layout.

Renewed interest in the concept sprang up in the late 1980s with Bremen and Munich to look for modernized versions of the GT type series.

The selection of stock consists of the prototype "Bremen" (tram 3801) and three units from Munich.

In the middle, the articulation has been lengthened and redesigned, so that the movements of the front and rear sets of modules couldn't influence each other.

Tram operation includes: When Bombardier Transportation bought Adtranz, it ceased production of the GTx-trams; however, the concept of articulated railcars for low floor trams was carried forward to its Incentro model, which was eventually replaced by Bombardier's standardized Flexity family of vehicles.

Of these, the Flexity Berlin was specially designed with a layout similar to the Incentro and GTx-series and can be considered to be among its immediate successors.

Similar trams are the Alstom Citadis, AnsaldoBreda Sirio and CAF Urbos, among others.

GT6N in Berlin
First Generation, in curves the articulation between the centre and trailing sections bends in the opposite direction to the other articulation, this requires a special track layout
Roof of a GT6M in Jena
R3.3 tram in Munich