{"id":18981,"date":"2026-01-09T10:49:00","date_gmt":"2026-01-09T09:49:00","guid":{"rendered":"https:\/\/fixalia.com\/normativa-senalizacion-variable-tuneles\/"},"modified":"2026-02-11T17:25:55","modified_gmt":"2026-02-11T16:25:55","slug":"tunnel-variable-message-signs-regulations","status":"publish","type":"post","link":"https:\/\/fixalia.com\/en\/tunnel-variable-message-signs-regulations\/","title":{"rendered":"Tunnel Variable Message Signs Regulations. Regulatory framework in Spain."},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"18981\" class=\"elementor elementor-18981\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-702d0118 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"702d0118\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7d6bf627\" data-id=\"7d6bf627\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e704341 elementor-widget elementor-widget-text-editor\" data-id=\"e704341\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The <strong data-path-to-node=\"3,1\" data-index-in-node=\"4\">tunnel variable message signs regulations<\/strong> in Spain establish a rigorous technical-legal framework that guarantees the safety of millions of drivers every year<span data-path-to-node=\"3,2\">.<\/span><\/p><p data-path-to-node=\"4\"><span data-path-to-node=\"4,1\">However, knowing the applicable rules is not enough: understanding their purpose, their specific requirements, and how they interrelate makes the difference between a project that complies on paper and one that works effectively in real-world conditions<\/span><span data-path-to-node=\"4,2\">.<\/span><\/p><p data-path-to-node=\"5\"><span data-path-to-node=\"5,1\">In this guide, we <strong data-path-to-node=\"5,1\" data-index-in-node=\"18\">analyse<\/strong> the current <strong data-path-to-node=\"5,1\" data-index-in-node=\"38\">tunnel VMS regulations<\/strong> in depth, from <strong data-path-to-node=\"5,1\" data-index-in-node=\"76\">Royal Decree 635\/2006<\/strong> to the <strong data-path-to-node=\"5,1\" data-index-in-node=\"105\">UNE-EN technical specifications<\/strong>, with the aim of helping you understand not only what the law requires, but why it requires it and how we help you apply it correctly in your project<\/span><span data-path-to-node=\"5,2\">.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-4423173 e-flex e-con-boxed e-con e-parent\" data-id=\"4423173\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b886a57 elementor-widget elementor-widget-ld_blog\" data-id=\"b886a57\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"ld_blog.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"lqd-lp-grid b886a57 blog-id-193489495 \"><div class=\"lqd-lp-grid-inner\" data-id=\"0\"><div class=\"lqd-lp-row row pos-rel d-flex flex-wrap\" ><div class=\"lqd-lp-column d-flex flex-column col-md-12 traffic lqd-f-57 transport lqd-f-58\"><article id=\"post-17861\" class=\"lqd-lp pos-rel lqd-lp lqd-lp-style-21 d-flex flex-wrap text-start post-17861 post type-post status-publish format-standard has-post-thumbnail hentry category-traffic category-transport\">\n<div class=\"lqd-lp-img w-sm-35 w-100 pos-rel overflow-hidden mb-4 mb-sm-0\">\n\t<figure class=\"lqd-overlay\"><img fetchpriority=\"high\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/fixalia.com\/wp-content\/uploads\/2025\/08\/2508-Fix-Blog-Banner-Normativa-UNE-EN-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"Normativa UNE-EN de se\u00f1ales de mensaje variable - Dos paneles de movilidad variable donde en el mismo panel coexisten se\u00f1ales de tr\u00e1fico y mensajes de precauci\u00f3n\" itemprop=\"image\" \/><div class=\"lqd-overlay d-flex align-items-center justify-content-center\"><i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i><\/div><\/figure><\/div>\n\n<div class=\"lqd-lp-contents w-sm-65 w-100 pl-sm-6 pl-md-9 pr-sm-5 d-flex flex-column\">\n\n\t<header class=\"lqd-lp-header\">\n\t\t<div class=\"lqd-lp-meta d-flex align-items-center justify-content-between text-uppercase ltr-sp-1 mb-3\">\n\t\t\t<span class=\"screen-reader-text\">Tags <\/span><ul class=\"lqd-lp-cat lqd-lp-cat reset-ul inline-ul pos-rel z-index-3\"><li><a href=\"https:\/\/fixalia.com\/en\/category\/traffic\/\" rel=\"category\">Traffic<\/a><\/li><\/ul>\t\t<\/div>\n\t\t<h2 class=\"lqd-lp-title mt-1 mb-3 h5\"><a href=\"https:\/\/fixalia.com\/en\/une-en-standard-vms-signs\/\">UNE-EN 12966:2005 Standard for VMS signs<\/a><\/h2>\n\t<\/header>\n\n\t\t\t\t<div class=\"lqd-lp-excerpt\">\n\t\t\t\tDo you know what the UNE-EN Standard for VMS signs covers? We explain the key requirements of UNE-EN 12966:2005 and how to apply them to ensure road safety and technical compliance in your projects.\t\t\t<\/div>\n\t\t\n\t\t<footer class=\"lqd-lp-footer pt-3\">\n\t\t<a href=\"https:\/\/fixalia.com\/en\/une-en-standard-vms-signs\/\" class=\"btn btn-naked lqd-lp-read-more\">\n\t\t\t<span class=\"btn-icon\">\n\t\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t\t<\/span>\n\t\t<\/a>\n\t<\/footer>\n\t\n<\/div>\n\n<a  href=\"https:\/\/fixalia.com\/en\/une-en-standard-vms-signs\/\" class=\"lqd-lp-overlay-link lqd-overlay lqd-cc-label-trigger z-index-2\" tab-index=\"-1\"><\/a><\/article><\/div><\/div><!--\/ .row --><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3584651 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3584651\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b3a9082\" data-id=\"b3a9082\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-85f78f1 elementor-widget elementor-widget-text-editor\" data-id=\"85f78f1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Why<span data-path-to-node=\"7,1\"> regulations for tunnels are important <\/span><\/h2><p data-path-to-node=\"7\"><span data-path-to-node=\"7,0\">\u00a0<\/span><\/p><p><a href=\"https:\/\/fixalia.com\/en\/traffic-panels-signs-tunnels\/\">Tunnels<\/a> are one of the most demanding environments in road infrastructure: they concentrate gases, limit evacuation routes, and present lighting and visual conditions that require highly reliable signalling<span data-path-to-node=\"7,2\">. For this reason, <strong data-path-to-node=\"8,1\" data-index-in-node=\"17\">tunnel variable message signs regulations<\/strong> are not merely an administrative formality, but a technical response to the specific risks of these spaces, designed to protect driver safety and facilitate traffic management in any circumstance<\/span><span data-path-to-node=\"8,2\">.<\/span><\/p><p>Every regulatory requirement (from a panel&#8217;s luminance levels to communication protocols with the <strong data-path-to-node=\"9,1\" data-index-in-node=\"98\">control centre<\/strong>) has a technical and operational basis<span data-path-to-node=\"9,2\">. <strong>Royal Decree 635\/2006<\/strong> and its updates have driven numerous tunnel adaptation projects in recent years, demonstrating that regulatory compliance is not limited to new constructions, but forms part of a continuous process of road safety improvement and modernisation<\/span><span data-path-to-node=\"11,1\">.<\/span><\/p><blockquote><strong><a href=\"https:\/\/fixalia.com\/en\/traffic-panels-signs-tunnels\/\">Discover our variable mobility panel solution for tunnels<\/a><\/strong><\/blockquote><h3>The three regulatory pillars (and how they translate to your project)<\/h3><ol><li><strong data-path-to-node=\"14,0,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"14,0,1,0\">Safety legal framework:<\/span><\/strong> Defines which tunnels must have variable signalling and the minimum equipment to operate safely<\/li><li data-path-to-node=\"14,1,1\"><span data-path-to-node=\"14,1,1,0\"> <strong data-path-to-node=\"14,1,1,0\" data-index-in-node=\"0\">Technical design and location standards:<\/strong> Establish how signs must be implemented (reading distances, visual hierarchy, approach\/interior\/exit zones)<\/span><span data-path-to-node=\"14,1,1,1\">.<\/span><\/li><li data-path-to-node=\"14,2,1\"><span data-path-to-node=\"14,2,1,0\"> <strong data-path-to-node=\"14,2,1,0\" data-index-in-node=\"0\">Product and certification standards:<\/strong> Regulate the performance a panel must accredit (photometry, durability, communications) and the tests that support CE marking and interoperability<\/span><span data-path-to-node=\"14,2,1,1\">.<\/span><\/li><\/ol><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-efbbd85 elementor-widget elementor-widget-text-editor\" data-id=\"efbbd85\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<table><thead><tr><td><p><strong>Regulatory pillar<\/strong><\/p><\/td><td><p><strong>Main function<\/strong><\/p><\/td><td><p><strong>Involved standards<\/strong><\/p><\/td><td><p><strong>Level<\/strong><\/p><\/td><\/tr><\/thead><tbody><tr><td><p><strong data-path-to-node=\"15,1,0,0\" data-index-in-node=\"0\">Safety legal framework<\/strong><\/p><\/td><td><p>Defines minimum requirements and mandatory equipment<\/p><\/td><td><p>RD 635\/2006, Directive 2004\/54\/EC, NS 3\/2006<\/p><\/td><td><p>Legal<\/p><\/td><\/tr><tr><td><p><strong data-path-to-node=\"15,2,0,0\" data-index-in-node=\"0\">Technical design and location<\/strong><\/p><\/td><td><p>Regulates distances, luminance, legibility, application zones<\/p><\/td><td><p>Instruction 8.1-IC, MITMA Manual, CEDEX\/DGT Guides<\/p><\/td><td><p>National Technical<\/p><\/td><\/tr><tr><td><p><strong data-path-to-node=\"15,3,0,0\" data-index-in-node=\"0\">Product and certification<\/strong><\/p><\/td><td><p>Establishes technical characteristics, tests and communications<\/p><\/td><td><p>UNE-EN 12966, UNE 199051-2, Regulation (EU) 305\/2011<\/p><\/td><td><p>European Technical<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7cd9462 elementor-widget elementor-widget-spacer\" data-id=\"7cd9462\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d3e5fe9 elementor-widget elementor-widget-spacer\" data-id=\"d3e5fe9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7499182 elementor-widget elementor-widget-text-editor\" data-id=\"7499182\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<blockquote class=\"h4 m-0 lh-2\"><p><em>You might be interested in: <span style=\"text-decoration: underline;\"><a href=\"https:\/\/fixalia.com\/en\/how-to-choose-best-variable-message-signs-tunnels\/\">How to choose the best tunnel variable message signalling<\/a><\/span><\/em><\/p><\/blockquote>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-93ac146 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"93ac146\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-31eb6ff\" data-id=\"31eb6ff\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f5b7fee elementor-widget elementor-widget-spacer\" data-id=\"f5b7fee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7d7cb5b elementor-widget elementor-widget-text-editor\" data-id=\"7d7cb5b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>Legal Framework: Royal Decree 635\/2006 and Directive 2004\/54\/EC<\/h3><p data-path-to-node=\"18\"><span style=\"text-decoration: underline;\"><em><strong data-path-to-node=\"19,0\" data-index-in-node=\"0\"><a href=\"https:\/\/www.boe.es\/buscar\/act.php?id=BOE-A-2006-9296\">Royal Decree 635\/2006<\/a><\/strong> <\/em><\/span>on minimum safety requirements in State road tunnels constitutes the cornerstone of <strong data-path-to-node=\"19,0\" data-index-in-node=\"106\">tunnel variable message signs regulations<\/strong> in Spain<span data-path-to-node=\"19,1\">. This royal decree transposes <a href=\"https:\/\/www.boe.es\/buscar\/doc.php?id=DOUE-L-2004-81114\">European Directive 2004\/54\/EC<\/a> into the Spanish legal system, harmonising safety standards across the Trans-European Road Network<\/span><span data-path-to-node=\"20,2\">.<\/span><\/p><p>This text defines the <strong data-path-to-node=\"21,1\" data-index-in-node=\"22\">minimum equipment requirements<\/strong> and establishes a <strong data-path-to-node=\"21,1\" data-index-in-node=\"71\">tunnel classification<\/strong> based on two key factors: its length and the average daily traffic (ADT)<span data-path-to-node=\"21,2\">.<\/span><\/p><p data-path-to-node=\"22\"><span data-path-to-node=\"22,1\">In practice, <strong data-path-to-node=\"22,1\" data-index-in-node=\"13\">variable message signalling is mandatory<\/strong> in all tunnels over <strong data-path-to-node=\"22,1\" data-index-in-node=\"74\">500 metres<\/strong> with an <strong data-path-to-node=\"22,1\" data-index-in-node=\"93\">ADT exceeding 2,000 vehicles<\/strong>, as well as in those exceeding <strong data-path-to-node=\"22,1\" data-index-in-node=\"153\">1,000 metres in length<\/strong>, regardless of the traffic they support<\/span><span data-path-to-node=\"22,2\">. It is also required in tunnels considered &#8220;special risk&#8221;, a category that managers can apply when geometric, ventilation, or traffic conditions justify it<\/span><span data-path-to-node=\"23,2\">.<\/span><\/p><p>In shorter tunnels\u2014between 200 and 500 <strong data-path-to-node=\"24,1\" data-index-in-node=\"39\">metres<\/strong>\u2014regulations only require fixed signalling, although more and more administrations are opting to incorporate variable panels to improve management during incidents<span data-path-to-node=\"24,3\">.<\/span><\/p><p data-path-to-node=\"25\"><strong data-path-to-node=\"26,0\" data-index-in-node=\"0\"><span data-path-to-node=\"26,0\">Annex III of the Royal Decree<\/span><\/strong> details the minimum equipment that must be installed in each zone of the tunnel<span data-path-to-node=\"26,1\">.<\/span><\/p><ul><li data-path-to-node=\"27,0,0\"><strong data-path-to-node=\"27,0,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"27,0,1,0\">In the access zones<\/span><\/strong>, variable message signs (VMS) must be situated between <strong data-path-to-node=\"27,0,1,0\" data-index-in-node=\"75\">300 and 500 metres before the portal<\/strong>, informing about the tunnel status, maximum speed, or possible restrictions<span data-path-to-node=\"27,0,1,1\">.<\/span><\/li><li><strong>Inside<\/strong>, <strong data-path-to-node=\"27,1,1,0\" data-index-in-node=\"8\">variable speed limit panels<\/strong> are required every few hundred <strong data-path-to-node=\"27,1,1,0\" data-index-in-node=\"67\">metres<\/strong>, <strong data-path-to-node=\"27,1,1,0\" data-index-in-node=\"75\">lane control signals<\/strong> in bidirectional or multi-lane tunnels, and systems capable of showing specific messages in case of fire, roadworks, or lane closure<span data-path-to-node=\"27,1,1,1\">.<\/span><\/li><li data-path-to-node=\"27,2,1\"><span data-path-to-node=\"27,2,1,0\"> <strong data-path-to-node=\"27,2,1,0\" data-index-in-node=\"0\">At the exit<\/strong>, signalling must facilitate the transition towards the exterior road, normalising speed and traffic flow<\/span><span data-path-to-node=\"27,2,1,2\">.<\/span><\/li><\/ul><p>\u00a0<\/p><p data-path-to-node=\"28\"><span data-path-to-node=\"28,1\">One of the most relevant, and often underestimated, aspects is the <strong data-path-to-node=\"28,1\" data-index-in-node=\"67\">redundancy of the system<\/strong><\/span><span data-path-to-node=\"28,2\">. The regulations oblige equipment to maintain its functionality even if the main electrical power supply is interrupted, using <strong data-path-to-node=\"29,1\" data-index-in-node=\"126\">Uninterruptible Power Supply (UPS) systems<\/strong> with a minimum autonomy of one hour<\/span><span data-path-to-node=\"29,2\">.<\/span><\/p><p>Finally, the Royal Decree is not limited to the physical installation of panels: it requires their <strong data-path-to-node=\"30,1\" data-index-in-node=\"99\">integration into a centralised control and supervision system<\/strong><span data-path-to-node=\"30,2\">. This means messages must be modifiable remotely and in real-time, with a response of less than five seconds, and equipment must feature <strong data-path-to-node=\"31,1\" data-index-in-node=\"136\">automatic diagnosis, event logging, and bidirectional communication<\/strong> with the <strong data-path-to-node=\"31,1\" data-index-in-node=\"213\">control centre<\/strong><\/span><span data-path-to-node=\"31,3\">.<\/span><\/p><p>In emergency situations, this immediate reaction capability can be decisive in preventing accidents and guaranteeing user safety<span data-path-to-node=\"32,2\">.<\/span><\/p><p>\u00a0<\/p><h3><span data-path-to-node=\"33,0\">Technical design and location standards: Instruction 8.1-IC <\/span><\/h3><p><strong><a href=\"https:\/\/www.transportes.gob.es\/recursos_mfom\/norma81ic.pdf\"><em><span style=\"text-decoration: underline;\">Instruction 8.1-IC<\/span><\/em><\/a><\/strong> is the Spanish reference for <strong data-path-to-node=\"35,0\" data-index-in-node=\"48\">design, dimensions, and location<\/strong> of vertical signalling, <strong data-path-to-node=\"35,0\" data-index-in-node=\"105\">including variable signalling<\/strong><\/p><p><span data-path-to-node=\"33,2\">. This standard complements Royal Decree 635\/2006 and defines precisely how signs must be implanted to guarantee their legibility, uniformity, and efficacy under any visibility condition.<\/span><\/p><p>Beyond a design framework, Instruction 8.1-IC translates <strong data-path-to-node=\"37,1\" data-index-in-node=\"57\">tunnel VMS regulations<\/strong> into practical criteria: it determines the minimum size of characters, the necessary luminance in each zone (interior, portal, or exterior) and visual consistency between different sections of the road network<span data-path-to-node=\"37,2\">.<\/span><\/p><p data-path-to-node=\"38\"><span data-path-to-node=\"38,1\">Its rigorous application makes the difference between a system that complies with the law and one that really improves driver safety<\/span><span data-path-to-node=\"38,2\">.<\/span><\/p><h4>\u00a0<\/h4><h4><span data-path-to-node=\"39,1,0\">Design principles and legibility in tunnel environments <\/span><\/h4><p data-path-to-node=\"41\"><span data-path-to-node=\"41,1\">The 8.1-IC is based on four essential principles that become especially relevant inside a tunnel: <strong>clarity, simplicity, uniformity, and continuity<\/strong><\/span><span data-path-to-node=\"41,2\">.<\/span><\/p><p data-path-to-node=\"42\"><span data-path-to-node=\"42,1\">Messages must be unequivocal and transmitted at a glance, avoiding overloading panels with multiple simultaneous warnings<\/span><span data-path-to-node=\"42,2\">. Symbols, colours, and formats must be coherent throughout the network, so that a driver traversing various tunnels always finds the same visual language<\/span><span data-path-to-node=\"43,2\">.<\/span><\/p><p>Furthermore, information must be offered with sufficient advance notice and remain visible until the user completes the indicated manoeuvre<span data-path-to-node=\"44,2\">.<\/span><\/p><p>This ergonomic approach, the result of years of research on perception and reaction time, seeks to ensure the driver does not have to &#8220;interpret&#8221;, but rather recognise and act instinctively in any situation<span data-path-to-node=\"45,2\">.<\/span><\/p><h4>\u00a0<\/h4><h4><span data-path-to-node=\"46,0\">Technical requirements: dimensions, luminance, and emergency signalling <\/span><\/h4><p data-path-to-node=\"47\"><span data-path-to-node=\"47,1\">From a technical point of view, the 8.1-IC establishes that the size of characters and pictograms depends on the <strong data-path-to-node=\"47,1\" data-index-in-node=\"113\">circulation speed and reading distance<\/strong><\/span><span data-path-to-node=\"47,2\">.<\/span><\/p><p data-path-to-node=\"48\"><span data-path-to-node=\"48,1\">For example, at 100 km\/h a minimum character height of <strong data-path-to-node=\"48,1\" data-index-in-node=\"55\">300 mm<\/strong> is required, while at 80 km\/h <strong data-path-to-node=\"48,1\" data-index-in-node=\"92\">200 mm<\/strong> suffices, increasing by 20-30% when adverse conditions like smoke or fog exists<\/span>.<\/p><p data-path-to-node=\"49\"><span data-path-to-node=\"49,1\">The standard also differentiates <strong data-path-to-node=\"49,1\" data-index-in-node=\"33\">luminance levels<\/strong> according to the panel location<\/span><span data-path-to-node=\"49,2\">:<\/span><\/p><ul><li data-path-to-node=\"50,0,0\"><strong data-path-to-node=\"50,0,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"50,0,1,0\">Inside the tunnel<\/span><\/strong>, signs must maintain at least <strong data-path-to-node=\"50,0,1,0\" data-index-in-node=\"48\">150 cd\/m\u00b2<\/strong> with a minimum contrast ratio of <strong data-path-to-node=\"50,0,1,0\" data-index-in-node=\"91\">5:1<\/strong>, guaranteeing reading in constant lighting environments.<\/li><li><strong>In the portal zone<\/strong>, panels must adapt their intensity automatically to exterior light changes, varying between <strong data-path-to-node=\"50,1,1,0\" data-index-in-node=\"111\">500 and 8,000 cd\/m\u00b2<\/strong> with a response time of less than two seconds<span data-path-to-node=\"50,1,1,1\">.<\/span><\/li><li data-path-to-node=\"50,2,1\"><span data-path-to-node=\"50,2,1,0\"> <strong data-path-to-node=\"50,2,1,0\" data-index-in-node=\"0\">On the exterior<\/strong>, luminance can reach up to <strong data-path-to-node=\"50,2,1,0\" data-index-in-node=\"43\">10,000 cd\/m\u00b2<\/strong>, with anti-glare optics to counteract direct sunlight<\/span><span data-path-to-node=\"50,2,1,1\">.<\/span><\/li><\/ul><p data-path-to-node=\"51\">\u00a0<\/p><p data-path-to-node=\"51\"><span data-path-to-node=\"51,1\">Finally, <strong data-path-to-node=\"51,1\" data-index-in-node=\"9\">Chapter 6 of the 8.1-IC<\/strong> regulates specific tunnel signalling, such as standardised pictograms for <strong data-path-to-node=\"51,1\" data-index-in-node=\"107\">emergency exits, lay-bys, or extinguishers<\/strong><\/span><span data-path-to-node=\"51,2\">. These signs must be repeated every <strong data-path-to-node=\"52,1\" data-index-in-node=\"35\">25 metres<\/strong> and, in complex tunnels, can be integrated into <strong data-path-to-node=\"52,1\" data-index-in-node=\"93\">dynamic variable panels<\/strong> capable of guiding users towards the safest exit depending on the incident location<\/span><span data-path-to-node=\"52,2\">.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-32ebb0f elementor-widget elementor-widget-image\" data-id=\"32ebb0f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/fixalia.com\/wp-content\/uploads\/2025\/05\/Fixalia-Senales-Sago-Glories.jpeg\" title=\"\" alt=\"Fixalia Se\u00f1ales Sago Glories\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d98fa45 elementor-widget elementor-widget-spacer\" data-id=\"d98fa45\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a0b3886 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a0b3886\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-48b4621\" data-id=\"48b4621\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-666b0aa elementor-widget elementor-widget-text-editor\" data-id=\"666b0aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>Product standards: guaranteeing reliability and CE marking<\/h3><p data-path-to-node=\"54\"><span data-path-to-node=\"54,1\">While Royal Decree 635\/2006 and the 8.1-IC define what must be installed and where, UNE-EN standards specify how equipment must be manufactured to guarantee its performance and durability<\/span><span data-path-to-node=\"54,2\">.<\/span><\/p><h4><span data-path-to-node=\"55,0\">UNE-EN 12966:2015 (Variable Message Signs, VMS) <\/span><\/h4><p data-path-to-node=\"56\"><span data-path-to-node=\"56,1\">This harmonised European standard is the mandatory reference for any variable signalling panel installed in a tunnel<\/span><span data-path-to-node=\"56,2\">. Its compliance is an essential condition for the equipment&#8217;s CE marking<\/span><span data-path-to-node=\"57,2\">.<\/span><\/p><p>This standard fixes photometric and chromatic classes, angular visibility requirements, uniformity, environmental resistance, and tests<\/p><p data-path-to-node=\"59\"><span data-path-to-node=\"59,1\">Regarding <strong data-path-to-node=\"59,1\" data-index-in-node=\"10\">photometric classification<\/strong>, the standard distinguishes four luminance levels (L1 to L4), with the most demanding\u2014L3 and L4\u2014being applicable to tunnels<\/span><span data-path-to-node=\"59,2\">. Class L3 panels, with values between <strong data-path-to-node=\"60,1\" data-index-in-node=\"37\">4,000 and 6,000 cd\/m\u00b2<\/strong>, are used in portal zones or tunnels with reinforced lighting, while Class L4 ones, reaching up to <strong data-path-to-node=\"60,1\" data-index-in-node=\"158\">10,000 cd\/m\u00b2<\/strong>, are essential in exteriors exposed to high solar radiation<\/span><span data-path-to-node=\"60,2\">.<\/span><\/p><p>The <strong data-path-to-node=\"61,1\" data-index-in-node=\"4\">chromatic classification<\/strong> establishes the <strong data-path-to-node=\"61,1\" data-index-in-node=\"45\">colour<\/strong> precision of LEDs according to CIE coordinates, ensuring correct message interpretation even under artificial light<span data-path-to-node=\"61,2\">. Specific ranges are defined for the <strong data-path-to-node=\"62,1\" data-index-in-node=\"36\">colours<\/strong> red (R1), green (G1), and amber (A1), corresponding to prohibition, indication, and caution signs respectively<\/span><span data-path-to-node=\"62,2\">.<\/span><\/p><p>Furthermore, the standard fixes <strong data-path-to-node=\"63,1\" data-index-in-node=\"32\">minimum visibility angles<\/strong>: \u00b140\u00b0 on the horizontal plane (\u00b150\u00b0 recommended in tunnels with curves) and +15\u00b0\/-10\u00b0 on the vertical, guaranteeing legibility from any type of vehicle<span data-path-to-node=\"63,2\">.<\/span><\/p><p data-path-to-node=\"64\"><span data-path-to-node=\"64,1\">To accredit their <strong data-path-to-node=\"64,1\" data-index-in-node=\"18\">reliability<\/strong>, panels must pass rigorous tests simulating extreme tunnel environment conditions: resistance to vibrations and humidity, thermal cycles between <strong data-path-to-node=\"64,1\" data-index-in-node=\"175\">-20 \u00b0C and +60 \u00b0C<\/strong>, exposure to corrosion, and a minimum useful life of <strong data-path-to-node=\"64,1\" data-index-in-node=\"246\">50,000 hours<\/strong> maintaining 70% of their initial luminance<\/span><span data-path-to-node=\"64,2\">.<\/span><\/p><p data-path-to-node=\"65\"><span data-path-to-node=\"65,1\">Finally, <strong data-path-to-node=\"65,1\" data-index-in-node=\"9\">IP and IK protection degrees<\/strong> ensure resistance against external agents<\/span><span data-path-to-node=\"65,2\">.<\/span><\/p><ul><li data-path-to-node=\"66,0,0\"><span data-path-to-node=\"66,0,0,1\">Inside the tunnel, the standard recommends <strong data-path-to-node=\"66,0,0,1\" data-index-in-node=\"43\">IP65\/IK10<\/strong> to protect against dust, pressurised water, and impacts<\/span><span data-path-to-node=\"66,0,0,3\">.<\/span><\/li><li data-path-to-node=\"66,1,0\"><span data-path-to-node=\"66,1,0,1\">In portal zones, <strong data-path-to-node=\"66,1,0,1\" data-index-in-node=\"17\">IP66\/IK10<\/strong> offers greater tightness against powerful water jets and sudden thermal changes<\/span><span data-path-to-node=\"66,1,0,2\">.<\/span><\/li><li><span data-path-to-node=\"66,2,0,1\"> On the exterior, panels must reach at least <strong data-path-to-node=\"66,2,0,1\" data-index-in-node=\"44\">IP67\/IK10<\/strong>, especially in tunnels exposed to intense rain, snow, or flood risk<\/span><span data-path-to-node=\"66,2,0,2\">.<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a51d7bb elementor-widget elementor-widget-text-editor\" data-id=\"a51d7bb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<blockquote class=\"h4 m-0 lh-2\"><p><em>You might be interested in: <span style=\"text-decoration: underline;\"><a href=\"https:\/\/fixalia.com\/en\/une-en-standard-vms-signs\/\">UNE-EN 12966:2005 Standard for Variable Message Signs<\/a><\/span><\/em><\/p><\/blockquote>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4289319 elementor-widget elementor-widget-text-editor\" data-id=\"4289319\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>UNE 199051-2:2016 \u2013 Communication protocols<\/h4><p data-path-to-node=\"69\"><span data-path-to-node=\"69,1\">Spanish standard standardising protocols, messaging, and diagnostics between VMS and <strong data-path-to-node=\"69,1\" data-index-in-node=\"85\">control centres<\/strong><\/span><span data-path-to-node=\"69,2\">. It guarantees that equipment from different manufacturers can coexist on the same platform and that operation has useful alarms and telemetry (states, faults, temperatures, brightness regulation, etc.)<\/span><span data-path-to-node=\"70,2\">.<\/span><\/p><p>The <strong>UNE 199051-2:2016 standard is based on<\/strong> <strong data-path-to-node=\"71,1\" data-index-in-node=\"43\">UNE-EN 12966<\/strong> and defines the constructive, functional, and communication requirements of variable messaging panels<span data-path-to-node=\"71,2\">. Its communication protocol, specified in UNE 199051-2, is a proprietary standard of the DGT in Spain (independent and distinct from the US NTCIP protocol)<\/span><span data-path-to-node=\"72,2\">.<\/span><\/p><p>Although both fulfil similar communication and control functions, they differ in structure and operation<span data-path-to-node=\"73,2\">. <\/span><span data-path-to-node=\"74,1\">Fixalia&#8217;s <strong data-path-to-node=\"74,1\" data-index-in-node=\"10\">DEVA 5G panels<\/strong> exclusively incorporate both protocols, allowing operation with either one according to system needs<\/span><span data-path-to-node=\"74,2\">.<\/span><\/p><p>In critical environments like tunnels, the standard fixes very strict response times: a <strong data-path-to-node=\"76,1\" data-index-in-node=\"88\">maximum latency of two seconds<\/strong> for message changes, <strong data-path-to-node=\"76,1\" data-index-in-node=\"140\">status updates every five seconds<\/strong>, and <strong data-path-to-node=\"76,1\" data-index-in-node=\"179\">immediate alarm notification<\/strong><span data-path-to-node=\"76,2\">.<\/span><\/p><p data-path-to-node=\"77\"><span data-path-to-node=\"77,1\">Additionally, it includes advanced <strong data-path-to-node=\"77,1\" data-index-in-node=\"35\">cybersecurity<\/strong> measures, such as authentication via digital certificates, <strong data-path-to-node=\"77,1\" data-index-in-node=\"108\">TLS 1.2 or higher encryption<\/strong>, and complete logging of access and modifications, thus ensuring reliable, fast, and secure communications between equipment and the <strong data-path-to-node=\"77,1\" data-index-in-node=\"270\">control centre<\/strong><\/span><span data-path-to-node=\"77,2\">.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b6f308a elementor-widget elementor-widget-text-editor\" data-id=\"b6f308a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<blockquote class=\"h4 m-0 lh-2\"><p><strong>Tip:<\/strong> Incorporate a test script in FAT and SAT with message sending\/confirmation cases, fault simulation, and alarm verification<span data-path-to-node=\"78,1,1\">. Do not assume that <em>&#8220;speaking&#8221;<\/em> is <em>&#8220;understanding each other<\/em>&#8220;.<\/span><\/p><\/blockquote>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1383431 elementor-widget elementor-widget-spacer\" data-id=\"1383431\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2d3f461e elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"2d3f461e\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-23944022\" data-id=\"23944022\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-574032ab elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"574032ab\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-extended\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-63e1c1d9\" data-id=\"63e1c1d9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-618754e9 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"618754e9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-1843c305\" data-id=\"1843c305\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-356be7e7 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"356be7e7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Do you need custom variable message panels?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-72163484 elementor-widget__width-initial elementor-widget elementor-widget-hub_fancy_heading\" data-id=\"72163484\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"hub_fancy_heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t<div id=\"ld-fancy-heading-6a271650d8f3d\" class=\"ld-fancy-heading pos-rel\">\n\t\t\t<p class=\"ld-fh-element d-inline-block pos-rel  lqd-highlight-classic lqd-highlight-grow-left p\"  > Tell us about your project and we will advise you on the best smart signage solution.<\/p>\t\t<\/div>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-75ad6e47\" data-id=\"75ad6e47\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-5d8752e0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5d8752e0\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-extended\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-22359485 form-sty\" data-id=\"22359485\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-22065854 elementor-widget elementor-widget-ld_cf722\" data-id=\"22065854\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"ld_cf722.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t<div class=\"lqd-contact-form       lqd-contact-form-button-round  \">\n\t\t\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f16611-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"16611\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/en\/wp-json\/wp\/v2\/posts\/18981#wpcf7-f16611-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" enctype=\"multipart\/form-data\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16611\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.4\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16611-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/><input type=\"hidden\" name=\"_wpcf7_recaptcha_response\" value=\"\" \/>\n<\/fieldset>\n<div class=\"contact-form\">\n\t<div style=\"display: flex; flex-wrap: wrap; gap: 20px;\">\n\t\t<div style=\"flex: 1 1 45%;\">\n\t\t\t<p><label>Full Name<\/label><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your name\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div style=\"flex: 1 1 45%;\">\n\t\t\t<p><label>Email<\/label><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"your@email.com\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div style=\"flex: 1 1 45%;\">\n\t\t\t<p><label>Phone<\/label><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-phone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-text wpcf7-validates-as-tel\" aria-invalid=\"false\" placeholder=\"Your phone\" value=\"\" type=\"tel\" name=\"your-phone\" \/><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div style=\"flex: 1 1 45%;\">\n\t\t\t<p><label>Company<\/label><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-company\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"Company name\" value=\"\" type=\"text\" name=\"your-company\" \/><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div style=\"flex: 1 1 100%;\">\n\t\t\t<p><label>Leave us a message<\/label><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"10\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" placeholder=\"Write your message here...\" name=\"your-message\"><\/textarea><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div>\n\t\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"file-170\"><input size=\"40\" class=\"wpcf7-form-control wpcf7-file\" accept=\"image\/*,application\/pdf\" aria-invalid=\"false\" type=\"file\" name=\"file-170\" \/><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div style=\"flex: 1 1 100%;\">\n\t\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"acceptance-933\"><span class=\"wpcf7-form-control wpcf7-acceptance optional\"><span class=\"wpcf7-list-item\"><label><input type=\"checkbox\" name=\"acceptance-933\" value=\"1\" aria-invalid=\"false\" \/><span class=\"wpcf7-list-item-label\">I have read and accepted the terms and conditions of the <a href=\"https:\/\/fixalia.com\/en\/privacy-policy\/\" target=\"_blank\" style=\"\">Privacy Policy<\/a> of Fixalia.<\/span><\/label><\/span><\/span><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div style=\"flex: 1 1 100%; margin-top: 10px;\">\n\t\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Send message\" \/>\n\t\t\t<\/p>\n\t\t<\/div>\n\t<\/div>\n<\/div><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n\t<\/div>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-b605613 e-con-full e-flex e-con e-parent\" data-id=\"b605613\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a30f476 elementor-widget elementor-widget-text-editor\" data-id=\"a30f476\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>Complementary documents and guides<\/h3><p data-path-to-node=\"80\"><span data-path-to-node=\"80,1\">Besides mandatory standards, reference technical documents exist that guide the practical application and maintenance of <strong data-path-to-node=\"80,1\" data-index-in-node=\"121\">signalling<\/strong> in tunnels<\/span><span data-path-to-node=\"80,2\">:<\/span><\/p><ul><li data-path-to-node=\"81,0,0\"><strong data-path-to-node=\"81,0,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"81,0,1,0\">Ministry of Transport Vertical Signalling Manual:<\/span><\/strong> Application guide for the 8.1-IC with examples and practical recommendations<span data-path-to-node=\"81,0,1,1\">.<\/span><\/li><li><strong>CEDEX and DGT technical guides<\/strong> on tunnel safety: Gathering good practices on visibility, maintenance, and emergency response<span data-path-to-node=\"81,1,1,1\">.<\/span><\/li><\/ul><h2><span data-path-to-node=\"82,0\">Regulatory compliance: beyond the checklist <\/span><\/h2><p data-path-to-node=\"83\">Tunnel VMS regulations fix the &#8220;minimum requirement&#8221;. A good design surpasses it, adapting to the real conditions of your tunnel.<\/p><h3>Factors conditioning the solution<\/h3><ul><li data-path-to-node=\"86,0,0\"><strong data-path-to-node=\"86,0,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"86,0,1,0\">Geometric:<\/span><\/strong> Length, radii, and slopes affect reading distances and viewing angles.<\/li><\/ul><ul><li data-path-to-node=\"86,1,0\"><strong data-path-to-node=\"86,1,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"86,1,1,0\">Traffic:<\/span><\/strong> ADT and percentage of heavy vehicles condition installation height, character size, and necessary robustness<span data-path-to-node=\"86,1,1,1\">.<\/span><\/li><li data-path-to-node=\"86,2,0\"><strong data-path-to-node=\"86,2,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"86,2,1,0\">Environmental:<\/span><\/strong> Portal orientation, fog, rain, or salinity force IP\/IK protection adjustments and optical care against reflections<span data-path-to-node=\"86,2,1,1\">.<\/span><\/li><li data-path-to-node=\"86,3,0\"><strong data-path-to-node=\"86,3,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"86,3,1,0\">Operational:<\/span><\/strong> Message policy, emergency protocols, target message change time, and 24\/7 support availability<span data-path-to-node=\"86,3,1,1\">.<\/span><\/li><\/ul><h3><span data-path-to-node=\"87,0\">Frequent errors (and how to avoid them)<\/span><\/h3><ul><li data-path-to-node=\"88,0,0\"><strong data-path-to-node=\"88,0,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"88,0,1,0\">Homogenising specifications in all positions:<\/span><\/strong> Interior, portal, and exterior do not share the same needs<span data-path-to-node=\"88,0,1,1\">.<\/span><\/li><li data-path-to-node=\"88,1,0\"><strong data-path-to-node=\"88,1,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"88,1,1,0\">Trusting that CE marking covers everything:<\/span><\/strong> It accredits the product, but does not replace correct implementation or operation<span data-path-to-node=\"88,1,1,1\">.<\/span><\/li><li data-path-to-node=\"88,2,0\"><strong data-path-to-node=\"88,2,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"88,2,1,0\">Underestimating communications:<\/span><\/strong> Without reliable diagnosis, exploitation &#8220;flies blind&#8221;<span data-path-to-node=\"88,2,1,1\">.<\/span><\/li><li data-path-to-node=\"88,3,0\"><strong data-path-to-node=\"88,3,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"88,3,1,0\">Forgetting maintenance and cleaning:<\/span><\/strong> The best photometry degrades if there is no plan<span data-path-to-node=\"88,3,1,1\">.<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-18d69a0 elementor-widget elementor-widget-spacer\" data-id=\"18d69a0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-46540a4 elementor-widget elementor-widget-text-editor\" data-id=\"46540a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>What the administration requires in a &#8220;perfect&#8221; file<\/h2><ul><li data-path-to-node=\"90,0,0\"><strong data-path-to-node=\"90,0,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"90,0,1,0\">VMS CE Dossier:<\/span><\/strong> Declaration of Performance, UNE-EN 12966 tests, and class matrix<span data-path-to-node=\"90,0,1,1\">.<\/span><\/li><li data-path-to-node=\"90,1,0\"><strong data-path-to-node=\"90,1,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"90,1,1,0\">Compliance memory<\/span><\/strong> for RD 635\/2006 and 8.1-IC (by position: approach, portal, interior, exit)<span data-path-to-node=\"90,1,1,1\">.<\/span><\/li><li data-path-to-node=\"90,2,0\"><strong data-path-to-node=\"90,2,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"90,2,1,0\">Layout plans<\/span><\/strong> with coordinates, height levels, and justified reading distances<span data-path-to-node=\"90,2,1,1\">.<\/span><\/li><li data-path-to-node=\"90,3,0\"><strong data-path-to-node=\"90,3,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"90,3,1,0\">Communication scheme<\/span><\/strong> according to UNE 199051-2: architecture, addresses, frames, alarms, and logging<span data-path-to-node=\"90,3,1,1\">.<\/span><\/li><li data-path-to-node=\"90,4,0\"><strong data-path-to-node=\"90,4,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"90,4,1,0\">FAT\/SAT test plan<\/span><\/strong> and maintenance protocol in operation (checklists, frequencies, availability KPIs)<span data-path-to-node=\"90,4,1,1\">.<\/span><\/li><li data-path-to-node=\"90,5,0\"><strong data-path-to-node=\"90,5,1,0\" data-index-in-node=\"0\"><span data-path-to-node=\"90,5,1,0\">Operational manual<\/span><\/strong> with standard messages and activation criteria (incidents, roadworks, meteorology)<span data-path-to-node=\"90,5,1,1\">.<\/span><\/li><\/ul><h2><span data-path-to-node=\"91,0\">Fixalia: regulatory compliance from start to finish<\/span><\/h2><p data-path-to-node=\"92\"><span data-path-to-node=\"92,1\">At Fixalia, we conceive regulations as a <strong data-path-to-node=\"92,1\" data-index-in-node=\"41\">roadmap<\/strong> to guarantee safe, efficient, and lasting projects, not as a formality<\/span><span data-path-to-node=\"92,2\">. That is why we accompany every client from the design phase, <strong data-path-to-node=\"93,1\" data-index-in-node=\"61\">analysing<\/strong> the tunnel classification, regulatory requirements, and local conditions<\/span><span data-path-to-node=\"93,2\">.<\/span> We select equipment with CE marking and UNE-EN 12966 performance suitable for each zone, and elaborate the complete documentation accrediting compliance with RD 635\/2006 and the 8.1-IC<span data-path-to-node=\"94,2\">.<\/span><\/p><p>Furthermore, we ensure real interoperability with the <strong data-path-to-node=\"95,1\" data-index-in-node=\"54\">control centre<\/strong> via UNE 199051-2 protocols, offering remote diagnosis, precise alarms, and continuous support<span data-path-to-node=\"95,2\">.<\/span><\/p><p data-path-to-node=\"96\"><span data-path-to-node=\"96,1\">After commissioning, we train operation teams and establish maintenance plans and periodic audits to maintain system legibility, availability, and reliability throughout its useful life<\/span><span data-path-to-node=\"96,2\">.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-25b03e5 e-flex e-con-boxed e-con e-parent\" data-id=\"25b03e5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2b08efe elementor-widget elementor-widget-spacer\" data-id=\"2b08efe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-577ce8b e-con-full e-flex e-con e-parent\" data-id=\"577ce8b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-499d7f7 e-con-full e-flex e-con e-child\" data-id=\"499d7f7\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-05f87d7 elementor-widget elementor-widget-text-editor\" data-id=\"05f87d7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Complying is the start; designing well is the difference<\/h2><p data-path-to-node=\"98\"><strong data-path-to-node=\"99,0\" data-index-in-node=\"0\"><span data-path-to-node=\"99,0\">Tunnel Variable Message Signs Regulations<\/span><\/strong> give you the minimum you must demand to protect those who pass through your infrastructure every day<span data-path-to-node=\"99,1\">. Excellence arrives when you adapt <strong data-path-to-node=\"100,1\" data-index-in-node=\"34\">tunnel VMS regulations<\/strong> to your tunnel&#8217;s real conditions, choose correct classes and locations, ensure interoperability, and care for the operation<\/span><span data-path-to-node=\"100,2\">.<\/span><\/p><p><strong>Are you working on a tunnel signalling project?<\/strong> At Fixalia we can help you define the most suitable technical solution for your specific needs<span data-path-to-node=\"102,1\">. Our team of engineers is available to <strong data-path-to-node=\"103,1\" data-index-in-node=\"38\">analyse<\/strong> your project and offer you a personalised proposal without commitment<\/span><span data-path-to-node=\"103,2\">.<\/span><\/p><p><strong><a href=\"https:\/\/fixalia.com\/en\/contact\/\">Contact us<\/a><\/strong> and discover how we can convert regulatory requirements into a real, efficient solution adapted to your tunnel&#8217;s particularities.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f4a5f3d e-con-full e-flex e-con e-child\" data-id=\"f4a5f3d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4856e3c elementor-widget elementor-widget-image\" data-id=\"4856e3c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"550\" height=\"522\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D&apos;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&apos; viewBox%3D&apos;0 0  &apos;%2F%3E\" class=\"attachment-large size-large wp-image-17790 ld-lazyload\" alt=\"T\u00e9cnico de Fixalia gestionando paneles de mensaje variable (PMV) en un t\u00fanel con tecnolog\u00eda 5G y control remoto en tiempo real\" data-src=\"https:\/\/fixalia.com\/wp-content\/uploads\/2025\/07\/Blog-CTA-e1753960466968.webp\" data-srcset=\"https:\/\/fixalia.com\/wp-content\/uploads\/2025\/07\/Blog-CTA-e1753960466968.webp 550w, https:\/\/fixalia.com\/wp-content\/uploads\/2025\/07\/Blog-CTA-e1753960466968-300x285.webp 300w\" data-sizes=\"(max-width: 550px) 100vw, 550px\" data-aspect=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3832d25 e-flex e-con-boxed e-con e-parent\" data-id=\"3832d25\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>In this guide, we clearly explain how to correctly apply the current regulations\u2014from Royal Decree 635\/2006 to UNE-EN standards and Instruction 8.1-IC\u2014helping you design, certify, and install systems that comply with all legal and technical requirements in 2026.<\/p>\n","protected":false},"author":1,"featured_media":20002,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-18981","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categoria"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Tunnel VMS Regulations: The 2026 Guide to Standards &amp; Compliance<\/title>\n<meta name=\"description\" content=\"Discover the tunnel VMS regulations (RD 635\/2006, UNE-EN 12966) and how to apply them for safety and efficiency. Get advice from Fixalia.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fixalia.com\/en\/tunnel-variable-message-signs-regulations\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tunnel VMS Regulations: The 2026 Guide to Standards &amp; Compliance\" \/>\n<meta property=\"og:description\" content=\"Discover the tunnel VMS regulations (RD 635\/2006, UNE-EN 12966) and how to apply them for safety and efficiency. 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