Low-floor tram

The low-floor design improves the accessibility of the tram for the public, and also may provide larger windows and more airspace.

In Vienna, Ultra Low Floor (ULF) Trams can "kneel" at the curbside, reducing the height from the road to only 180 mm (7.1 in).

[4] The Škoda ForCity and the newest Alstom Citadis X04 try to counter the effect with pivoting bogies while maintaining 100% low floor design.

The idea of a low-floor tram dates back to the early 20th century when a number of trolley systems began experimenting with various "stepless" designs.

[5] A number of other cities also purchased Hedley-Doyle Stepless trams after seeing their success in Manhattan.