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|} The Hauenstein line is a major railway line in Switzerland connecting the cities of Basel and Olten. The original line was built between 1853 and 1858 under the Unterer Hauenstein Pass, an ancient pass through the Jura Mountains, including a long tunnel under the village of Hauenstein. Between 1912 and 1916 a new line with an long base tunnel was built further east, by-passing the steeper sections of the line.〔 Normally long-distance trains use the base tunnel line, and the old summit line is only used by trains serving the local people (''Läufelfingerli''). Sometimes during disruptions inter-city trains operate on the old line, but it is reasonably fast and diverted trains take only about four minutes longer than normal services. Freight trains rarely use the summit line because its large gradients. ==The Hauenstein-summit tunnel== The first railway in Switzerland was the extension of the French Strasbourg–Basel Railway (French: ''Chemin de fer de Strasbourg à Bâle'') from Mulhouse to Basel, which opened to a temporary station outside Basel's walls on 15 June 1844 and to the permanent station on 11 December 1845. Despite constant discussion it was some time before this line was extended into Switzerland. In 1850 the Swiss Federal Council invited the two British engineers, Robert Stephenson and Henry Swinburne to draw up plans for a railway network for the Swiss Confederation. To connect the three main cities of the German-speaking part of the country, Zurich, Basel and Bern, the experts suggested a line to Basle along the Rhine or a tunnel under the Passwang Pass to connect with the Swiss plateau. The Federal Council favored a line with a tunnel through the Jura via the Unterer Hauenstein Pass or the Schafmatt Pass. Both routes followed the Ergolz river to Sissach; from there a route near Läufelfingen through a Hauenstein tunnel to Olten was sought. Variations investigated included a line through Gelterkinden and from there to Tecknau or Anwil and then through a tunnel under the Schafmatt Pass to Aarau. The clear winner of these variants was the Läufelfingen line, because of its shorter tunnel and its slightly lower estimated construction cost. 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「Hauenstein railway line」の詳細全文を読む スポンサード リンク
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