{"id":2943,"date":"2020-04-07T17:50:00","date_gmt":"2020-04-07T17:50:00","guid":{"rendered":"https:\/\/wizardly-gagarin.23-128-160-42.plesk.page\/news\/lrail-extended-field-trials-of-lrail-for-automated-track-change-detection\/"},"modified":"2025-11-26T18:41:41","modified_gmt":"2025-11-26T18:41:41","slug":"essais-terrain-us-fra","status":"publish","type":"post","link":"https:\/\/www.pavemetrics.com\/fr\/news\/essais-terrain-us-fra\/","title":{"rendered":"LRAIL \u2013 Essais sur le Terrain pour la D\u00e9tection Automatis\u00e9e des D\u00e9fauts et des Changements aux Structures F\u00e9rroviaires"},"content":{"rendered":"\n<p>Pavemetrics est fier de partager la r\u00e9cente publication par la US Federal Railway Administration du rapport final du projet pour sa deuxi\u00e8me phase de test LRAIL.<\/p>\n\n<p>Ce rapport d\u00e9taille les essais prolong\u00e9s sur le terrain de la technologie d\u2019inspection et de d\u00e9tection des changements LRAIL sur les lignes d\u2019Amtrak afin de mod\u00e9liser la sensibilit\u00e9, le bruit de fond et la r\u00e9p\u00e9tabilit\u00e9 dans des conditions d\u2019inspection de r\u00e9seau ferroviaire typiques.<\/p>\n\n<p>Pour ce projet, la technologie LRAIL a \u00e9t\u00e9 install\u00e9e sur une remorque d\u2019inspection ferroviaire sp\u00e9cialis\u00e9e et les donn\u00e9es ont \u00e9t\u00e9 collect\u00e9es sur les lignes Amtrak sur une p\u00e9riode de 4 mois pour un total de trois d\u00e9ploiements distincts sur une boucle de test de 8 miles pr\u00e8s de la fronti\u00e8re Delaware-Pennsylvanie.<\/p>\n\n<p>Des donn\u00e9es r\u00e9p\u00e9t\u00e9es dans la m\u00eame direction et en sens inverses ont \u00e9t\u00e9 captur\u00e9es pour chaque d\u00e9ploiement afin de mod\u00e9liser la r\u00e9p\u00e9tabilit\u00e9, la moyenne et l\u2019\u00e9cart type des mesures. Le plancher de bruit pour la d\u00e9tection des changements a \u00e9galement \u00e9t\u00e9 mod\u00e9lis\u00e9 par l\u2019analyse des r\u00e9p\u00e9titions et la d\u00e9tection des changements connus\/d\u00e9lib\u00e9r\u00e9s.<\/p>\n\n<p>Les mesures de d\u00e9tection de changement de LRAIL ont \u00e9t\u00e9 jug\u00e9es hautement r\u00e9p\u00e9tables, avec une moyenne globale de 99,28% de concordance entre les essais.<\/p>\n\n<p>Lire le rapport complet publi\u00e9 par la FRA:\u00a0<a href=\"http:\/\/www.pavemetrics.com\/wp-content\/uploads\/2020\/04\/Extended-Field-Trials-of-LRAIL-for-Automated-Track-Change-Detection-Phase-2.pdf\">PDF anglais<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pavemetrics est fier de partager la r\u00e9cente publication par la US Federal Railway Administration du rapport final du projet pour sa deuxi\u00e8me phase de test LRAIL.<\/p>\n","protected":false},"author":1,"featured_media":3488,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-2943","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-categorise"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.5 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\r\n<title>Pavemetrics | LRAIL \u2013 Essais sur le Terrain pour la D\u00e9tection Automatis\u00e9e des D\u00e9fauts et des Changements aux Structures F\u00e9rroviaires<\/title>\r\n<meta name=\"description\" content=\"Essais terrain de LRAIL pour la d\u00e9tection automatis\u00e9e des d\u00e9fauts ferroviaires. 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