{"id":5645,"date":"2026-07-12T04:56:14","date_gmt":"2026-07-12T02:56:14","guid":{"rendered":"https:\/\/www.svalbard.fr\/actualites\/la-construction-du-tunnel-routier-le-plus-long-et-le-plus-beau-du-monde-a-coute-75-millions-de-livres-sterling\/"},"modified":"2026-07-12T04:56:17","modified_gmt":"2026-07-12T02:56:17","slug":"la-construction-du-tunnel-routier-le-plus-long-et-le-plus-beau-du-monde-a-coute-75-millions-de-livres-sterling","status":"publish","type":"post","link":"https:\/\/www.svalbard.fr\/actualites\/la-construction-du-tunnel-routier-le-plus-long-et-le-plus-beau-du-monde-a-coute-75-millions-de-livres-sterling\/","title":{"rendered":"La construction du tunnel routier le plus long et le plus beau du monde a co\u00fbt\u00e9 75 millions de livres sterling"},"content":{"rendered":"
\n

La Norv\u00e8ge regorge de routes \u00e0 couper le souffle. Des sommets enneig\u00e9s aux cols glaciaires, un road trip \u00e0 travers ce magnifique pays garantit de ne jamais s'ennuyer.<\/p>\n<\/div>\n

\n

Mais il ne s\u2019agit pas uniquement de routes ouvertes : la Norv\u00e8ge abrite \u00e9galement l\u2019un des tunnels les plus spectaculaires de la plan\u00e8te. Le tunnel de Laerdal, dans l'ouest de la Norv\u00e8ge, est le plus long tunnel routier au monde, s'\u00e9tendant sur 24,5 kilom\u00e8tres (15 miles) sous une cha\u00eene de montagnes. Il relie Aurland et Laerdal, au c\u0153ur de Sogn, et offre une connexion sans ferry entre Oslo et Bergen.<\/p>\n<\/div>\n

\n

La construction du tunnel a commenc\u00e9 en 1995 et s'est termin\u00e9e en 2000, et pendant la construction, un nombre incroyable de 2 500 000 m\u00e8tres cubes de roche ont \u00e9t\u00e9 extraits du tunnel.<\/p>\n<\/div>\n

\n

Sa construction a co\u00fbt\u00e9 la somme \u00e9norme de 75 millions de livres sterling. Le tunnel est divis\u00e9 en quatre sections s\u00e9par\u00e9es par trois grandes grottes.<\/p>\n<\/div>\n

\n

Le tunnel est r\u00e9put\u00e9 comme l'un des plus remarquables au monde gr\u00e2ce \u00e0 sa conception ing\u00e9nieuse, qui lutte activement contre la fatigue du conducteur et la claustrophobie.<\/p>\n<\/div>\n

\n

La section principale du tunnel est brillamment \u00e9clair\u00e9e par des lumi\u00e8res blanches, tandis que chaque grotte pr\u00e9sente un \u00e9clairage bleu et jaune sur les bords pour \u00e9voquer l'impression d'un lever de soleil.<\/p>\n<\/div>\n

\n

Ces grottes ont \u00e9t\u00e9 con\u00e7ues dans le but d'att\u00e9nuer l'ennui du tunnel et d'offrir un bref r\u00e9pit aux conducteurs.<\/p>\n<\/div>\n

\n

Les grottes servent \u00e9galement de points tournants tout au long du voyage de 20 minutes.<\/p>\n<\/div>\n

\n

Une bande rugueuse dans chaque voie emp\u00eache \u00e9galement les conducteurs de perdre leur concentration et de d\u00e9vier de leur trajectoire. A chaque kilom\u00e8tre, un panneau vous informe de la distance parcourue dans le tunnel et du chemin qu'il vous reste \u00e0 parcourir.<\/p>\n<\/div>\n

\n

Parmi les autres caract\u00e9ristiques remarquables du tunnel de Laerdal figure la particularit\u00e9 d'\u00eatre le premier au monde \u00e0 \u00eatre \u00e9quip\u00e9 d'une station de traitement de l'air.<\/p>\n<\/div>\n

\n

Cette installation est situ\u00e9e dans une caverne de 100 m\u00e8tres de large et extrait \u00e0 la fois la poussi\u00e8re et le dioxyde d'azote de l'alimentation en air du tunnel.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

La Norv\u00e8ge regorge de routes \u00e0 couper le souffle. Des sommets enneig\u00e9s aux cols glaciaires, un road trip \u00e0 travers ce magnifique pays garantit de<\/p>\n","protected":false},"author":1,"featured_media":5646,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2277],"tags":[856,936,665,411,291,447,307,1000,412,788],"yoast_head":"\nLa construction du tunnel routier le plus long et le plus beau du monde a co\u00fbt\u00e9 75 millions de livres sterling<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.svalbard.fr\/actualites\/la-construction-du-tunnel-routier-le-plus-long-et-le-plus-beau-du-monde-a-coute-75-millions-de-livres-sterling\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La construction du tunnel routier le plus long et le plus beau du monde a co\u00fbt\u00e9 75 millions de livres sterling\" \/>\n<meta property=\"og:description\" content=\"La Norv\u00e8ge regorge de routes \u00e0 couper le souffle. 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