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The Zürich trolleybus system () is part of the public transport network of Zürich, Switzerland. Opened in 1939, it combines with the Zürich S-Bahn, the Zürich tramway network and Zürich's urban motorbus network to form an integrated all-four style scheme. , the system consists of six lines and a total route length of .〔 It is operated by Verkehrsbetriebe Zürich (VBZ), which also operates the tramway and motorbus networks. Like the other modes of public transport in the region, it is covered by the Zürcher Verkehrsverbund. ==History== The Zürich trolleybus system was opened on 27 May 1939, by the then ''Städtischen Strassenbahn Zürich'' ("Zurich Municipal Tramway") (''St. St. Z.''). It was the third modern trolleybus system to be opened in Switzerland, after the Lausanne system and Winterthur system, respectively. Initially, trolleybus routes were created on new routings intended to complement, rather than compete with, the city's existing tram network. The first Zürich trolleybus route was Bezirksgebäude (Limmatplatz) to Bucheggplatz,〔 and is now part of line 32. ''De facto'', the new system's initial operator was the legally independent transport company ''Autobusbetrieb der Städtischen Strassenbahn Zürich'' ("Bus Operation of the Zürich Municipal Tramway"). This company had been founded in 1927 as ''Kraftwagenbetrieb der Städtischen Strassenbahn Zürich'' ("Motor Vehicle Operator of the Zürich Municipal Tramway") and had been renamed in 1935.〔 Only in March 1949 did the two companies merge, to form the ''Verkehrsbetriebe der Stadt Zürich'',〔 which, since 1978, has been known as ''Verkehrsbetriebe Zürich''. Between its opening in 1946 and 1956, line C, now known as line 34, was isolated from the rest of the system. During that period, vehicle replacement on that line was carried out using a so-called ''Bügelwagen'' ("current collector") on tram tracks. In the 1950s, the city's trams began to be seen as inflexible and susceptible to the growing traffic congestion in the city streets. One proposed solution was the conversion of the less busy lines to trolleybus routes, and the first step in this direction was the conversion, between 1954 and 1958, of tram route 1, and an outer portion of tram route 2, into trolleybus route 31. However no further conversions of tram routes to trolleybuses have taken place. 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「Trolleybuses in Zürich」の詳細全文を読む スポンサード リンク
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