{"id":46361,"date":"2026-09-14T23:00:00","date_gmt":"2026-09-14T21:00:00","guid":{"rendered":"https:\/\/www.efk.admin.ch\/?post_type=audit&p=46361"},"modified":"2026-09-14T09:15:34","modified_gmt":"2026-09-14T07:15:34","slug":"projet-transports-45","status":"publish","type":"audit","link":"https:\/\/www.efk.admin.ch\/fr\/audit\/projet-transports-45\/","title":{"rendered":"Projet Transports ’45"},"content":{"rendered":"\n

Le Conseil f\u00e9d\u00e9ral soumet r\u00e9guli\u00e8rement au Parlement les programmes d\u2019am\u00e9nagement visant \u00e0 d\u00e9velopper le r\u00e9seau routier, ferroviaire et du trafic d\u2019agglom\u00e9ration. D\u00e9but 2025, le Conseil f\u00e9d\u00e9ral a lanc\u00e9 le projet \u00ab Transports \u201945 \u00bb. Ce projet vise \u00e0 coordonner l\u2019am\u00e9nagement des infrastructures de transport et \u00e0 en prioriser l\u2019am\u00e9nagement jusqu\u2019en 2045 et au-del\u00e0. Les constructions pr\u00e9vues ont \u00e9t\u00e9 mises en consultation en juin 2026 et les diff\u00e9rents projets seront pr\u00e9sent\u00e9s au Parlement au d\u00e9but de l\u2019ann\u00e9e 2027.<\/p>\n\n\n\n

Le Contr\u00f4le f\u00e9d\u00e9ral des finances (CDF) a analys\u00e9 si la priorisation des projets de \u00ab Transports \u201845 \u00bb est compr\u00e9hensible. Il salue le principe d\u2019analyser et de pr\u00e9senter, pour la premi\u00e8re fois, les projets d\u2019am\u00e9nagement de mani\u00e8re transversale et de remettre en question des anciens projets. Toutefois, le CDF rel\u00e8ve d\u2019importantes faiblesses : il manque des bases essentielles pour \u00e9tablir une priorisation compr\u00e9hensible et solide, notamment quant aux nouveaux am\u00e9nagements.<\/p>\n\n\n\n

Avant l\u2019ouverture de la consultation, le CDF a notifi\u00e9 ces faiblesses au D\u00e9partement f\u00e9d\u00e9ral de l\u2019environnement, des transports, de l\u2019\u00e9nergie et de la communication (DETEC) et au Conseil f\u00e9d\u00e9ral. Le CDF a demand\u00e9 la suspension du projet tant que les points essentiels n\u2019\u00e9taient pas r\u00e9solus. La demande du CDF n\u2019a pas \u00e9t\u00e9 suivie.<\/p>\n\n\n\n

\n
\n\n
\n
\n

3<\/h2>\n

types d\u2019infrastructures de transport prioris\u00e9es par \u00ab\u00a0Transports \u201845\u00a0\u00bb<\/p>\n<\/div>\n <\/div>\n

\n

112 mia.<\/h2>\n

de francs de projets prioris\u00e9s par l\u2019Ecole Polytechnique F\u00e9d\u00e9rale de Z\u00fcrich (EPFZ)<\/p>\n<\/div>\n <\/div>\n

\n

50 mia.<\/h2>\n

de francs de projets pr\u00e9vus \u00e0 l\u2019horizon 2045<\/p>\n<\/div>\n <\/div>\n

\n

11 mia.<\/h2>\n

de francs de projets soumis au Parlement d\u00e9but 2027<\/p>\n<\/div>\n <\/div>\n <\/div>\n \n <\/div>\n<\/section>\n\n\n\n\n

\n
\n\n

\n R\u00e9sultats principaux <\/h2>\n \n
\n
    \n
  • \n
    \n

    Rentabilit\u00e9 des projets probablement plus faible qu\u2019annonc\u00e9e<\/h3>\n

    Le calcul de rentabilit\u00e9 des projets ferroviaires et routiers pr\u00e9sente plusieurs faiblesses importantes. Elles remettent en question l\u2019\u00e9valuation et la priorisation des projets propos\u00e9s.<\/p>\n<\/div>\n <\/div>\n <\/li>\n

  • \n
    \n

    La priorisation se base en grande partie sur une expertise externe limit\u00e9e<\/h3>\n

    L\u2019\u00e9tude de l\u2019EPFZ est largement limit\u00e9e par le mandat du DETEC. Bien qu\u2019utile, elle reste trop partielle pour fonder de mani\u00e8re substantielle la politique des transports du pays.<\/p>\n<\/div>\n <\/div>\n <\/li>\n <\/ul>\n

      \n
    • \n
      \n

      Pas d\u2019analyse syst\u00e9matique des alternatives \u00e0 l\u2019\u00e9largissement d\u2019autoroutes<\/h3>\n

      Les limitations de vitesses dynamiques et la r\u00e9affectation de la bande d\u2019arr\u00eat d\u2019urgence r\u00e9duisent de mani\u00e8re efficiente les probl\u00e8mes de capacit\u00e9, mais n\u2019ont pas \u00e9t\u00e9
      \nsyst\u00e9matiquement r\u00e9analys\u00e9es.<\/p>\n<\/div>\n <\/div>\n <\/li>\n

    • \n
      \n

      Pas de preuve de finan\u00e7abilit\u00e9 des projets pr\u00e9vus jusqu\u2019en 2045<\/h3>\n

      La disponibilit\u00e9 de quelque 50 milliards de francs de d\u00e9penses pr\u00e9vues pour la r\u00e9alisation de projets jusqu\u2019\u00e0 2045 n\u2019est pas garantie.<\/p>\n<\/div>\n <\/div>\n <\/li>\n <\/ul>\n <\/div>\n \n <\/div>\n<\/section>\n","protected":false},"featured_media":46428,"menu_order":0,"template":"","audit_category":[47],"audit_type":[52],"class_list":["post-46361","audit","type-audit","status-publish","has-post-thumbnail","hentry","audit_category-transports-et-environnement","audit_type-audit-fr"],"acf":{"audit_lang":null,"audit_numbers":[{"audit_number":"26718"}],"audit_office":[8041],"audit_office_text":"","audit_date":"20260914","bgo":false,"keywords":"","audit_office_local":"SG-DETEC"},"yoast_head":"\nProjet Transports '45 - Contr\u00f4le f\u00e9d\u00e9ral des finances (CDF)<\/title>\n<meta name=\"description\" content=\"Projet Transports '45\" \/>\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.efk.admin.ch\/fr\/audit\/projet-transports-45\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Projet Transports '45\" \/>\n<meta property=\"og:description\" content=\"Projet Transports '45\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.efk.admin.ch\/fr\/audit\/projet-transports-45\/\" \/>\n<meta property=\"og:site_name\" content=\"Contr\u00f4le f\u00e9d\u00e9ral des finances (CDF)\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.efk.admin.ch\/wp-content\/uploads\/test\/palais.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"750\" \/>\n\t<meta property=\"og:image:height\" content=\"500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.efk.admin.ch\\\/fr\\\/audit\\\/projet-transports-45\\\/\",\"url\":\"https:\\\/\\\/www.efk.admin.ch\\\/fr\\\/audit\\\/projet-transports-45\\\/\",\"name\":\"Projet Transports '45 - 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