Ultra Low Floor


The Ultra Low Floor tram (ULF) is a low-floor tram operating in Vienna, Austria and Oradea, Romania, built by a consortium composed of Siemens and ELIN in Vienna. It has the lowest floor-height of any such vehicle.

ULF (B1) in Vienna (April 2009)
ULF (A1) Oradea (June 2009)

OverviewEdit

 
Engine of an ULF

In contrast to other low-floor trams, the floor in the interior of ULF is at sidewalk height (about 20 cm or 7.9 inches above the road surface), 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 (150 cars since mid-2006, and another 152 as of 2007).

Siemens ULF trams were introduced in Oradea, Romania on 24 April 2008, and are the only ULF trams outside Austria.[1]

Technical specificationsEdit

City / Operator Type
designation
Built in Number of
vehicles
Length Width Weight (empty) Maximum power
Vienna / Wiener Linien A 1995 (prototype), 1997 50 24.20 m (79 ft 4+34 in) 2.40 m (7 ft 10+12 in) 30 t (29.5 long tons; 33.1 short tons) 6 x 60 kW (80 hp)
Vienna / Wiener Linien A1 2007–2015 80 24.20 m (79 ft 4+34 in) 2.40 m (7 ft 10+12 in) 30 t (29.5 long tons; 33.1 short tons)} 6 x 36 kW (48 hp)
Vienna / Wiener Linien B 1995 (prototype), 1998 100 35.30 m (115 ft 9+34 in) 2.40 m (7 ft 10+12 in) 43 t (42.3 long tons; 47.4 short tons)} 8 x 60 kW (80 hp)
Vienna / Wiener Linien B1 2009– 100 35.30 m (115 ft 9+34 in) 2.40 m (7 ft 10+12 in) 43 t (42.3 long tons; 47.4 short tons)} 8 x 36 kW (48 hp)
Oradea / OTL A1 2008–2009 10 24.20 m (79 ft 4+34 in) 2.40 m (7 ft 10+12 in) 30 t (29.5 long tons; 33.1 short tons)} 6 x 36 kW (48 hp)

GalleryEdit

See alsoEdit

NotesEdit

  1. ^ "Oradea orders export ULF". Railway Gazette International. 5 Feb 2008.

External linksEdit