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Länsimetro (the Western Metro Extension, Swedish: Västmetron) will be an extension of the Helsinki Metro system from central Helsinki, Finland, to the neighbouring city of Espoo. The new stretch of line will extend from the existing Ruoholahti metro station via the island of Lauttasaari, the Aalto University Otaniemi campus, and Tapiola to a new terminus at Matinkylä, and will run completely underground. The second phase of the construction will continue the line to Kivenlahti.〔 〕〔 Final approval for a route was granted on 4 April 2007, and the construction began in November 2009. In February 2014, rock blasting was complete, and the fitting out of the tunnels and construction of the stations was ongoing.〔 〕〔 〕 The extension is currently expected to open for service in autumn 2016 at the earliest.〔 〕〔 〕 == Background == The first designs for a metro system in Helsinki, made in the 1950s, already contained lines to Espoo. After the two forks of the metro line in eastern Helsinki had been completed in 1998, the city of Helsinki continued to pursue the Länsimetro proposal, but the city of Espoo continued to reject it until the early 2000s. Espoo is the second most populous city in Finland (after Helsinki), currently served by roads, bus transport, and commuter trains. It is connected to Helsinki by the Rantarata coastal railway and by two motorways: Finnish national road 1 (Turun moottoritie, to Turku) in the middle and the Western Highway (the Länsiväylä) in the south, near the coast. As the primary passageway between southern Espoo and central Helsinki, the Länsiväylä has been repeatedly enlarged to cope with congestion, but is still seeing chronic traffic jams in the morning rush hours. Widening the Länsiväylä has not solved the traffic jams, but has instead only moved them closer to the centre of Helsinki (see also Downs–Thomson paradox). Since the 1990s, the Finnish state and the city of Helsinki had been willing to finance a part of the Länsimetro project and prepared to commence construction. However, Espoo opposed the project for a long time, mainly because of the cost: the state had only agreed to pay 30% of the costs, while Espoo wanted it to contribute at least 70%. 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「Länsimetro」の詳細全文を読む スポンサード リンク
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