Trams
Initially in 1878, Wellington's trams were steam-powered, with an engine drawing a separate carriage. The engines were widely deemed unsatisfactory, however — they created a great deal of soot, were heavy (increasing track maintenance costs), and often frightened horses. By 1882, a combination of public pressure and financial concerns caused the engines to be replaced by horses. In 1902, after the tramways came into public ownership, it was decided to electrify the system, and the first electric tram ran in 1904. Trams operated singly, and were mostly single-deck but some double-deck.
Read more about this topic: Wellington Tramway System