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RM 2 was a class of two-bogie four-axle (Bo′Bo′ wheel arrangement) tram operated by Turku City Transport ((フィンランド語:Turun kaupungin liikennelaitos) (TuKL); (スウェーデン語:Åbo stads trafikverk)), popularly known as "ghost cars". They were the last trams acquired for the Turku tram network prior to its closure in 1972, built by the Finnish metal industry corporation Valmet in 1956. Although never operated as such, these trams were designed for use on light rail lines. All RM 2s were withdrawn in June 1972 on the closure tram line 2.〔 Although attempts were made to sell the trams to new operators, they never returned to active service. Five were sold for scrap; three were given to private organisations for preservation, but were scrapped by the 1980s.〔 ==Concept and construction== The trams were, like the older Karia HM IV and Valmet RM 1 types trams built for the Helsinki tram network, based on Swiss Standard Trams of the time but with numerous changes. The RM 2 was shorter and narrower than the Helsinki trams and had no middle doors.〔〔 They were constructed in collaboration with Tampella and Strömberg, who provided the bogies and electronics respectively. As a result the RM 2 class, along with the similar RM 1 and RM 3 classes, were also referred to as VTS trams. Due to the Tampella-built bogies and rubber dampened wheels the RM 2 trams ran extremely silently and smoothly, earning them the nickname "ghost cars" ((フィンランド語:"Aavevaunut")). The RM 2 class had 1+1 seating arrangement (instead of Helsinki's 2+1) to maximise capacity.〔 During the early 1950s, when the RM 2 class were ordered, there was an ongoing struggle in the decision-making organs of Turku on whether the tram network should be expanded with light rail lines into the suburban areas or closed down.〔Sirkiä (). pp. 26-27.〕 The design of the RM 2 class was optimised for usage on light rail lines, with a top speed of .〔 However, by the time the trams were delivered in 1956, the expansion plans had been abandoned apart from a short expansion of line 2 completed the same year. As a result the RM 2 trams were never used for the purpose for which they were optimised for.〔〔Sirkiä (). p. 8.〕 All RM 2 trams had couplers for towing two-axle trailers. In 1958 one four-axle trailer, number 141, was built by the TuKL workshop. Unlike the existing trailers it was equipped with an automatic Scharfenberg coupler, and RM 2 48 was fitted with a similar coupler to tow it. During the first year in service the 48+141 combination was used on line 2, after that on line 1 during rush hour.〔 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「Valmet RM 2」の詳細全文を読む スポンサード リンク
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