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The Z-class are single-unit bogie trams that operate on the Melbourne tram network. Between 1975 and 1983, 230 trams spanning three subclasses were built by Comeng, Dandenong. The design was based on two similar Gothenburg tram models, and a prototype built by the Melbourne and Metropolitan Tramways Board. While the Z1 and Z2-class trams were very similar, the Z3-class had significant design changes. Since introduction they have had a variety of liveries, and modifications. Today many Z1 and Z2-class trams have been retired, with 146 Z-class trams remaining in service, 114 of which being Z3-class trams. ==History== When Melbourne and Metropolitan Tramways Board (M&MTB) staff were sent to Europe in 1965 to investigate other tramway operations, they took interest in Swedish trams, and upon return in 1966 drew up specifications, and had a timber mockup built. This mockup was to be the basis for a new tram design for Melbourne. The M&MTB approved of the design, and in 1972 requested a prototype be constructed, the result was PCC 1041 being built at Preston Workshops. It was 'European in appearance' and utilised components bought new, and recycled from an earlier prototype tram, PCC 980. Prototype PCC 1041 became the basis of the Z-class trams, with 230 trams – influenced by the Gothenburg, Sweden M28 and M29 design – built by Comeng, Dandenong between 1974 and 1983.〔 When the Melbourne tram network was split in preparation for privatisation, all Z-class passed to M>Tram. All passed to Yarra Trams in 2004, where they were refurbished and repainted into Yarra Trams livery.〔(【引用サイトリンク】work=Yarra Trams )〕 In late 2007, the remaining Z-class trams with analogue signage were refitted with digital signage, replacing the original flap and rolling route destination displays. The Z-class trams are primarily in Yarra Trams or all-over advertising livery, although the Z3-class are progressively being refurbished and repainted in Public Transport Victoria livery.〔(Z1 Class ) Vicsig〕〔(Z2 Class ) Vicsig〕〔(Z3 Class ) Vicsig〕 On 26 October 2011, a Z3-class tram (no. 158), specially liveried as a ''Royal Tram'' was used to convey Queen Elizabeth II and Prince Philip along St Kilda Road from Federation Square to Government House during their visit to Melbourne. The ''Royal Tram'' was in regular service until February 2013.〔(Z3.158 ) Vicsig〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Z-class Melbourne tram」の詳細全文を読む スポンサード リンク
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