Ultra Low Floor
The Ultra Low Floor tram is a low-floor tram operating in Vienna, Austria and Oradea, Romania, built by a consortium composed of Siemens and :de:ELIN|ELIN in Vienna. It has the lowest floor-height of any such vehicle.Overview
In contrast to other low-floor trams, the floor in the interior of ULF is at sidewalk height, which makes access to trams easy for passengers in wheelchairs or with baby carriages. This configuration required a new undercarriage. The axles had to be replaced by a complex electronic steering of the traction motors. Auxiliary devices are installed largely under the car's roof.
The ULF technology went into testing in the early 1990s. Since 1998, ULFs have been in use on Vienna's tram network. As of mid-2008, 302 cars were in operation.
Siemens ULF trams were introduced in Oradea, Romania on 24 April 2008, and are the only ULF trams outside Austria.Gallery
