{"id":21074,"date":"2026-01-21T18:13:43","date_gmt":"2026-01-21T16:13:43","guid":{"rendered":"https:\/\/www.clearsy.com\/?p=21074"},"modified":"2026-01-21T18:13:43","modified_gmt":"2026-01-21T16:13:43","slug":"sil2-safety-development-of-the-temporary-signalling-server-gest-for-argos-rbc-obtaining-sil2-certification","status":"publish","type":"post","link":"https:\/\/www.clearsy.com\/en\/railway\/sil2-safety-development-of-the-temporary-signalling-server-gest-for-argos-rbc-obtaining-sil2-certification\/","title":{"rendered":"SIL2 safety development of the temporary signalling server (GEST) for ARGOS RBC, obtaining SIL2 certification"},"content":{"rendered":"<p>CLEARSY carried out the safety development with a SIL2 requirement level for the temporary signalling server for Compagnie des signaux (CSEE).<\/p>\n<p>The server interfaces between the operator station and the ground computer that authorizes train movements (RCB, Radio Block Center), and enables the safe setting and removal of restrictions such as \u2018Temporary Speed Restrictions\u2019 or track-related features (\u2018Track Conditions\u2019).<\/p>\n<p>These restrictions are designed to protect workers and trains travelling in work zones.<\/p>\n<p>The temporary signalling server is an integral part of the ERMTS Level 2 signalling system for the ARGOS RBC project.<\/p>\n<p>As usual, CLEARSY led this development until SIL2 certification is obtained. After a year of development, <strong>CLEARSY is proud to announce that it has obtained SIL2 certification!<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>CLEARSY carried out the safety development with a SIL2 requirement level for the temporary signalling server for Compagnie des signaux [&hellip;]<\/p>\n","protected":false},"author":23,"featured_media":21069,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[681,682,1551],"tags":[],"class_list":["post-21074","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ertms-en","category-railway","category-surete-de-fonctionnement-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SIL2 safety development of the temporary signalling server (GEST) for ARGOS RBC, obtaining SIL2 certification - CLEARSY<\/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.clearsy.com\/en\/railway\/sil2-safety-development-of-the-temporary-signalling-server-gest-for-argos-rbc-obtaining-sil2-certification\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SIL2 safety development of the temporary signalling server (GEST) for ARGOS RBC, obtaining SIL2 certification - CLEARSY\" \/>\n<meta property=\"og:description\" content=\"CLEARSY carried out the safety development with a SIL2 requirement level for the temporary signalling server for Compagnie des signaux [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.clearsy.com\/en\/railway\/sil2-safety-development-of-the-temporary-signalling-server-gest-for-argos-rbc-obtaining-sil2-certification\/\" \/>\n<meta property=\"og:site_name\" content=\"CLEARSY\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-21T16:13:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.clearsy.com\/wp-content\/uploads\/2026\/01\/GEST-2-US-web.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1700\" \/>\n\t<meta property=\"og:image:height\" content=\"650\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Elodie SENOUCI-TANI\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Elodie SENOUCI-TANI\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.clearsy.com\\\/en\\\/railway\\\/sil2-safety-development-of-the-temporary-signalling-server-gest-for-argos-rbc-obtaining-sil2-certification\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.clearsy.com\\\/en\\\/railway\\\/sil2-safety-development-of-the-temporary-signalling-server-gest-for-argos-rbc-obtaining-sil2-certification\\\/\"},\"author\":{\"name\":\"Elodie SENOUCI-TANI\",\"@id\":\"https:\\\/\\\/www.clearsy.com\\\/en\\\/#\\\/schema\\\/person\\\/814317cfd25d55208a01568fae4dc689\"},\"headline\":\"SIL2 safety development of the temporary signalling server (GEST) for ARGOS RBC, obtaining SIL2 certification\",\"datePublished\":\"2026-01-21T16:13:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.clearsy.com\\\/en\\\/railway\\\/sil2-safety-development-of-the-temporary-signalling-server-gest-for-argos-rbc-obtaining-sil2-certification\\\/\"},\"wordCount\":133,\"publisher\":{\"@id\":\"https:\\\/\\\/www.clearsy.com\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.clearsy.com\\\/en\\\/railway\\\/sil2-safety-development-of-the-temporary-signalling-server-gest-for-argos-rbc-obtaining-sil2-certification\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.clearsy.com\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/GEST-2-US-web.jpeg\",\"articleSection\":[\"ERTMS\",\"Railway\",\"S\u00fbret\u00e9 de fonctionnement\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.clearsy.com\\\/en\\\/railway\\\/sil2-safety-development-of-the-temporary-signalling-server-gest-for-argos-rbc-obtaining-sil2-certification\\\/\",\"url\":\"https:\\\/\\\/www.clearsy.com\\\/en\\\/railway\\\/sil2-safety-development-of-the-temporary-signalling-server-gest-for-argos-rbc-obtaining-sil2-certification\\\/\",\"name\":\"SIL2 safety development of the temporary signalling server (GEST) for ARGOS RBC, obtaining SIL2 certification - 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