Southern Portal for the Marseilles HSL Tunnel (7,836 m, the longest French domestic railway tunnel).
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This tunnel runs through the Range of l'Estaque, which segregates Marseilles from its hinterland.
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At this stage, HSL tracks are already under 25kV-50Hz AC. Conversely, adjacent conventional tracks (1 on each side) feature 1.5kV DC.
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Marseilles (Tuileries Jct).
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29th January 2005.
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P.L.Guillemin (plguillemin@yahoo.fr)