page_title: Jura–Simplon Railways
section_title: Duplication
hierarchical_section_title: Jura–Simplon Railways / Infrastructure and vehicles / Network / Duplication
caption_attribution_description: Deutsch: Eine Zweizylinder-Verbund-Lokomotive vom Typ A 2/4 Jura–Simplon-Bahn (JS) dampft mit einem Schnellzug durch die Station Auvernier am Neuenburgersee.
context_page_description: The Jura–Simplon Railways, was a railway company that was formed in 1890. It was nationalised in 1903 as the largest railway company in Switzerland and integrated into the Swiss Federal Railways.
context_section_description: The Jura-Simplon Railway continued the track duplication of its predecessors. When SBB took over JS in 1903, 131.20 km (14%) of the network was duplicated.
caption: An express train hauled by a two-cylinder compound locomotive of class A 2/4 on the double track at Auvernier.
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