{"id":18169,"date":"2025-10-17T10:39:51","date_gmt":"2025-10-17T09:39:51","guid":{"rendered":"https:\/\/fixalia.com\/como-elegir-senalizacion-variable-tuneles\/"},"modified":"2026-01-07T16:58:25","modified_gmt":"2026-01-07T15:58:25","slug":"how-to-choose-best-variable-message-signs-tunnels","status":"publish","type":"post","link":"https:\/\/fixalia.com\/en\/how-to-choose-best-variable-message-signs-tunnels\/","title":{"rendered":"How to choose the best variable message signs for tunnels"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"18169\" class=\"elementor elementor-18169\">\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>Choosing <strong>variable message signs for tunnels<\/strong> goes far beyond ticking a regulatory checklist. Every project has unique constraints that\u2014if overlooked\u2014can compromise user safety and the operational efficiency of the system. Selecting the right <strong>tunnel variable message signs<\/strong> is essential to ensure visibility, durability, and compliance in these demanding environments.<\/p><p>In this guide, you\u2019ll learn how to identify the best <strong>variable message signs for tunnels<\/strong> according to their use, location, and light conditions. We\u2019ll also explain why <strong>signage at tunnel exits<\/strong> plays a critical role in maintaining traffic safety once drivers leave the tunnel.<\/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-17819\" class=\"lqd-lp pos-rel lqd-lp lqd-lp-style-21 d-flex flex-wrap text-start post-17819 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\/07\/2507-Fix-Blog-Banner-Por-que-Fixalia-1200x800px-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"T\u00e9cnico de Fixalia con casco y chaleco reflectante supervisando paneles de mensaje variable LED en autopista nocturna, destacando su liderazgo en soluciones de se\u00f1alizaci\u00f3n vial inteligente y gesti\u00f3n del tr\u00e1fico.\" 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\/fixalia-leader-variable-message-signs\/\">Why Fixalia leads in Variable Message Signs (VMS)<\/a><\/h2>\n\t<\/header>\n\n\t\t\t\t<div class=\"lqd-lp-excerpt\">\n\t\t\t\tLooking for reliable variable message signs? Fixalia leads the way with cutting-edge technology, unbeatable service, and over 40 years of experience\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\/fixalia-leader-variable-message-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\/fixalia-leader-variable-message-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-a5f5e24 elementor-widget elementor-widget-text-editor\" data-id=\"a5f5e24\" 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 variable message signs for tunnels are so important<\/h2><p>Tunnels are complex and constantly changing environments. Visibility is reduced, humidity and gases alter perception, and lighting conditions can shift rapidly. <strong>Variable message signs for tunnels<\/strong> allow operators to communicate with drivers in real time, improving reaction times and reducing the risk of accidents.<\/p><p>A reliable <strong>tunnel message sign system<\/strong>:<\/p><ul><li>Warns of incidents, restrictions, or detours ahead.<\/li><li>Guides drivers during emergencies or evacuations.<\/li><li>Supports dynamic speed control and traffic management.<\/li><li>Ensures compliance with <em><strong><a href=\"https:\/\/www.en.une.org\/encuentra-tu-norma\/busca-tu-norma\/norma?c=N0062564\">UNE-EN 12966:2015<\/a><\/strong><\/em> and Spain\u2019s <em><strong><a href=\"https:\/\/www.transportes.gob.es\/recursos_mfom\/norma81ic.pdf\">8.1-IC regulations<\/a>.<\/strong><\/em><\/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-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\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-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<h2>Types of variable signage by tunnel location<\/h2><p>Not all <strong>variable message signs for tunnels<\/strong> function the same way. Their performance depends heavily on where they\u2019re installed\u2014inside, at the portal, or outside. <strong><em>Environmental light, humidity, and airflow affect how each sign is perceived<\/em><\/strong>.<\/p><p>\u00a0<\/p><h3>1. Signage inside the tunnel<\/h3><p>Panels located <strong>inside the tunnel<\/strong> operate under relatively stable artificial lighting, which allows predictable luminance adjustment and optimal contrast with their surroundings. <strong>Priorities include ensuring that messages are legible at safe distances, considering the posted speed and the driver\u2019s reaction time.<\/strong> It is also essential to address environmental constraints such as humidity and vibrations.<\/p><p><strong><em>Key points:<\/em><\/strong><\/p><ul><li>Enclosed environment, low luminance, possible gases and humidity.<\/li><li>Recommend higher luminance classes and reinforced <strong>IP\/IK protection<\/strong>.<\/li><li>Prefer front-access maintenance and anti-vibration systems.<\/li><li><strong>Guarantee message legibility at safe distances aligned with permitted speed and reaction time.<\/strong><\/li><\/ul><p>\u00a0<\/p><h3><strong>2. <\/strong>Signage at the portal\/threshold (affected by exterior illuminance)<\/h3><p>The portal is visually critical. In the first meters at both entry and exit, two opposite lighting conditions collide: intense natural light outside vs. controlled artificial light inside. Drivers face the <strong><em>\u201cblack hole\u201d<\/em><\/strong> (approach) and <strong><em>\u201cwhite hole\u201d<\/em><\/strong> (exit) effects, and the eye needs a few seconds to adapt (often insufficient at motorway speeds).<\/p><p>Therefore, panels with wide-dynamic-range <strong>LED technology<\/strong> and <strong>photometric sensors <\/strong>that automatically adjust brightness are <strong>essential<\/strong>.<\/p><p><strong><em>Key points:<\/em><\/strong><\/p><ul><li>Critical zone due to abrupt light contrast changes.<\/li><li>Automatic brightness regulation to avoid glare.<\/li><li>Luminance transitions and color visibility are crucial for safety.<\/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-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-b715557 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b715557\" 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-839fb1b\" data-id=\"839fb1b\" 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-c16b05e elementor-widget elementor-widget-ld_fancy_image\" data-id=\"c16b05e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"ld_fancy_image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t<div class=\"lqd-imggrp-single d-block pos-rel \">\n\t\t\t<div class=\"lqd-imggrp-img-container d-inline-flex pos-rel align-items-center justify-content-center \">\n\t\t\t\t\t\t\t\t<figure class=\"w-100 pos-rel\">\n\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\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t<\/div>\n\t\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<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><strong>3. <\/strong>Exterior signage (before and after the tunnel)<\/h3><p>Long before the portal, outdoor panels face extreme <strong>variability in natural light<\/strong>. A panel that works on an overcast afternoon can become nearly invisible at midday under direct sun.<\/p><p>These approach panels must inform drivers about tunnel characteristics, restrictions, or incidents with enough lead time. That <strong>requires larger displays<\/strong>, <em>increased character height<\/em>, and <strong>luminance levels<\/strong> that can compete with full daylight\u2014plus resistance to wind, rain, and UV exposure.<\/p><p><strong><em>Key points:<\/em><\/strong><\/p><ul><li>High exposure to sun, wind, and rain.<\/li><li>High-legibility VMS at distance, taller character height, UV-resistant materials.<\/li><li>Consider reading distance and driver viewing angle.<\/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-bececa7 elementor-widget elementor-widget-spacer\" data-id=\"bececa7\" 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-93d542b elementor-widget elementor-widget-text-editor\" data-id=\"93d542b\" 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><strong>Signage at tunnel exits<\/strong>: why it needs special attention<\/h2><p>At the <strong>exit<\/strong>, drivers experience a sudden visual adaptation from low light to intense daylight, temporarily reducing their ability to perceive information. <strong>Signage at tunnel exits<\/strong> therefore requires stricter contrast and luminance levels. Panels must compete with direct daylight using high-power LED technology and optics designed to minimize reflections. Typical messages at exits\u2014work zones, queues ahead, weather-related speed limits\u2014are critical, and poor perception here can have serious consequences.<\/p><p>Priorities:<\/p><ul><li><strong>Homogenize speed and lane discipline<\/strong> after the exit.<\/li><li>Integrate dynamic messages (weather, visibility, nearby incidents).<\/li><li>Minimize reflections and adjust contrast to exterior light conditions.<\/li><li>Coordinate panels with the control center for immediate responses.<\/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-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 require customised variable message signs?<\/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-6a47b87499fe5\" 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\/18169#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-flex e-con-boxed e-con e-parent\" data-id=\"b605613\" 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-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<h2>How to choose the right panel: essential technical criteria<\/h2><p>Beyond baseline compliance, practical criteria make the difference between a robust investment and a system that demands expensive costs later on.<\/p><h3>\u00a0<\/h3><h3>Tunnel type and traffic volume<\/h3><p>The type of traffic determines the complexity of the messages you need to transmit. Urban, bidirectional tunnels with high traffic density may require dynamic messaging and real-time coordination with traffic systems. Interurban tunnels with lower density but higher speeds shift the focus to reading distance and reaction time.<\/p><p>Plus, consider heavy vehicles: mixed traffic requires <strong>variable message signs for tunnels<\/strong> that remain clearly visible from a truck cab (not just from a passenger car\u2019s eye level).<\/p><h3>\u00a0<\/h3><h3>Key parameters to specify<\/h3><ul><li><strong>Photometry &amp; color<\/strong>: ensure panels meet the luminance classes required by <a href=\"https:\/\/fixalia.com\/en\/une-en-standard-vms-signs\/\">UNE-EN 12966:2005<\/a> (e.g., L3\/L4).<\/li><li><strong>Legibility<\/strong>: character height, reading distance, and viewing angle aligned with section speed.<\/li><li><strong>Robustness<\/strong>: IP\/IK ratings, corrosion resistance, and durability against thermal cycles.<\/li><li><strong>Control &amp; communications<\/strong>: integration with the control center via open protocols (e.g., NTCIP or XML).<\/li><li><strong>Maintenance<\/strong>: front access preferred, replaceable LED modules, and remote diagnostics.<\/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-216d6dc elementor-widget elementor-widget-spacer\" data-id=\"216d6dc\" 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-68156ff elementor-widget elementor-widget-text-editor\" data-id=\"68156ff\" 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>Our tip: do not choose on price alone. Fully compliant variable message signs for tunnels save on replacements and maintenance in the medium term.<\/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-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>Common mistakes when procuring <strong>variable message signs for tunnels<\/strong><\/h2><ol><li><strong>Ignoring location (interior\/portal\/exterior)<\/strong> \u2192 luminance and contrast vary completely.<\/li><li><strong>Copy-pasting specs from past projects<\/strong> without adapting to the new tunnel.<\/li><li><strong>Omitting UNE-EN 12966 class<\/strong> in the technical specification.<\/li><li>Buying without <strong>conformity proofs or certified tests.<\/strong><\/li><li><strong>Not planning maintenance or after-sales support<\/strong>. Without periodic calibration, effectiveness degrades early.<\/li><li><strong>Overlooking automatic brightness control<\/strong>, essential in tunnels with variable lighting.<\/li><li>Neglecting <strong>signage at tunnel exits<\/strong>, causing confusion and harsh braking.<\/li><li><strong>Underestimating integration needs with existing systems<\/strong>, driving up modification costs during implementation.<\/li><\/ol>\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-d648d3c elementor-widget elementor-widget-spacer\" data-id=\"d648d3c\" 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-031f0aa elementor-widget elementor-widget-text-editor\" data-id=\"031f0aa\" 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>A practical checklist for your tunnel signage selection<\/h2>\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-81bdf8e elementor-widget elementor-widget-ld_list\" data-id=\"81bdf8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"ld_list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\n\t\t<div class=\"lqd-bullet-list\">\n\t\t\t<ul class=\"bullet-list-ul reset-ul \">\n\t\t\t\t\t\t\t\t\t\t<li class=\"d-flex align-items-center\">Location: interior \/ portal \/ exterior<\/li>\n\t\t\t\t\t\t\t\t\t\t<li class=\"d-flex align-items-center\">Photometric & chromatic class per UNE-EN 12966<\/li>\n\t\t\t\t\t\t\t\t\t\t<li class=\"d-flex align-items-center\">IP\/IK protection rating<\/li>\n\t\t\t\t\t\t\t\t\t\t<li class=\"d-flex align-items-center\">Character height & reading distance<\/li>\n\t\t\t\t\t\t\t\t\t\t<li class=\"d-flex align-items-center\">Remote control & diagnostics<\/li>\n\t\t\t\t\t\t\t\t\t\t<li class=\"d-flex align-items-center\">Remote control & diagnostics<\/li>\n\t\t\t\t\t\t\t\t\t\t<li class=\"d-flex align-items-center\">Guaranteed technical service & spare parts<\/li>\n\t\t\t\t\t\t\t<\/ul>\n\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\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>Fixalia: your partner for <strong>variable message signs for tunnels<\/strong><\/h2><p>With over a decade in the sector, Fixalia knows there\u2019s no one-size-fits-all solution for <strong>variable message signs for tunnels<\/strong>. Each project demands a detailed analysis of its specific conditions: geography, traffic profile, applicable standards, and existing systems.<\/p><p>Our approach blends <strong>technical quality with tailored service<\/strong>. We work with next-generation LED technology, approved under current UNE-EN standards, and we support the full project lifecycle\u2014from initial analysis and detailed engineering to installation, commissioning, preventive maintenance, and operator training.<\/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<div class=\"elementor-element elementor-element-cb18b27 e-flex e-con-boxed e-con e-parent\" data-id=\"cb18b27\" 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-3197d16 elementor-widget elementor-widget-text-editor\" data-id=\"3197d16\" 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>Conclusion<\/h2><p>Choosing the right solution isn\u2019t trivial. Technical differences between interior, exterior, and portal panels directly impact safety and operations. Starting from Spain\u2019s 8.1-IC instruction and UNE-EN specs is essential, but success also hinges on site-specific nuances: sun orientation, traffic profile, integration with existing systems, and maintenance planning.<\/p><p><strong>Need a tailored proposal?<\/strong> Tell us about your tunnel (location, length, speed limit, traffic mix). Our engineering team will help you specify the optimal <strong>variable message signs for tunnels<\/strong> and we\u2019ll prepare a precise quotation.<\/p><p><em><strong><a href=\"https:\/\/fixalia.com\/en\/traffic-panels-signs-tunnels\/\">Find out more here<\/a> <\/strong><\/em>or discover more about <a href=\"https:\/\/fixalia.com\/en\/fixalia-leader-variable-message-signs\/\"><em><strong>Fixalia, leader in variable message<\/strong><\/em> signs<\/a>.<\/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\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Discover how to choose the most efficient variable message signs for tunnels according to their location\u2014inside, at the portal, or at the exit. Ensure compliance with UNE-EN 12966 standards, improve visibility and safety, and learn why signage at tunnel exits is key to preventing accidents.<\/p>\n","protected":false},"author":1,"featured_media":20013,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[57,58],"tags":[],"class_list":["post-18169","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-traffic","category-transport"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to choose the best variable message signs for tunnels | Fixalia<\/title>\n<meta name=\"description\" content=\"Learn how to select variable message signs for tunnels by location and specs, meet UNE-EN standards, improve safety, and request your Fixalia quote.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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