{"id":21598,"date":"2026-10-05T11:28:57","date_gmt":"2026-10-05T09:28:57","guid":{"rendered":"https:\/\/www.clearsy.com\/?p=21598"},"modified":"2026-10-05T11:28:57","modified_gmt":"2026-10-05T09:28:57","slug":"testing-etcs-before-hitting-the-tracks","status":"publish","type":"post","link":"https:\/\/www.clearsy.com\/en\/ertms-en\/testing-etcs-before-hitting-the-tracks\/","title":{"rendered":"Testing ETCS before hitting the tracks"},"content":{"rendered":"<p><span data-contrast=\"auto\">In 2025, Dutch railway operator Nederlandse Spoorwegen (NS) and Stadler signed a framework agreement for the delivery of 36 FLIRT trains for regional passenger services.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">To support the commissioning of this new fleet and the integration of the ETCS and STM-ATB systems (the Dutch national train protection system), CLEARSY is supplying a dedicated simulation solution.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">This simulator enables a real ETCS On-Board Unit (OBU) to be connected to a simulated railway environment through the standardised SUBSET-111-2 interface, which defines how real onboard equipment exchanges data with a test environment. It can reproduce different signalling environments, including ETCS Level 1, ETCS Level 2 and the Dutch national train protection system (STM-ATB). This allows the OBU to be tested under realistic conditions without requiring access to a real train or railway infrastructure, providing greater flexibility throughout the integration, validation and commissioning phases.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">This capability has already been successfully demonstrated during a test campaign conducted between Utrecht and Strasbourg. The CLEARSY test bench installed at NS&#8217;s premises in Utrecht was used to remotely control and test CLEARSY&#8217;s ETCS OBU simulator located in Strasbourg in the various levels mentioned above.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">This system makes it possible to perform tests representative of real operating conditions while reducing logistical constraints and accelerating the validation process prior to entry into service.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In 2025, Dutch railway operator Nederlandse Spoorwegen (NS) and Stadler signed a framework agreement for the delivery of 36 FLIRT [&hellip;]<\/p>\n","protected":false},"author":23,"featured_media":21595,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[681],"tags":[],"class_list":["post-21598","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ertms-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - 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