{"id":197237,"date":"2026-11-05T13:15:50","date_gmt":"2026-11-05T12:15:50","guid":{"rendered":"https:\/\/newmobility.news\/?p=197237"},"modified":"2026-11-05T13:07:46","modified_gmt":"2026-11-05T12:07:46","slug":"uhasselt-slower-by-design-why-speed-signs-arent-enough","status":"publish","type":"post","link":"https:\/\/newmobility.news\/en\/2026\/11\/05\/uhasselt-slower-by-design-why-speed-signs-arent-enough\/","title":{"rendered":"UHasselt: slower by design, why speed signs aren&#8217;t enough"},"content":{"rendered":"<p>Researchers\u00a0<span class=\"Y2IQFc\" lang=\"en\">at IMOB, the Institute for Mobility at UHasselt University, want to understand how road design can cause drivers to slow down. It is generally known that introducing a 30 km\/h zone by simply putting up a sign is not enough; you also have to redesign the road. Otherwise, it won\u2019t work.<\/span><\/p>\n<p><span class=\"Y2IQFc\" lang=\"en\">Scientists also want to find out whether a measure that makes Belgian drivers slow down would have the same effect in <\/span><span class=\"Y2IQFc\" lang=\"en\">Croatia or Sweden<\/span><span class=\"Y2IQFc\" lang=\"en\">. The\u00a0joint study on road design and driving behavior is part of the European TwinSAFE project, in which UHasselt collaborates with the University of Zagreb and Lund University.<\/span><\/p>\n<p><span class=\"Y2IQFc\" lang=\"en\">They are now looking for test subjects willing to experience various traffic situations in a driving simulator.\u00a0<\/span><span class=\"Y2IQFc\" lang=\"en\">Candidates must be at least 18 years old and hold a valid category B driver&#8217;s license. Individuals who suffer from epilepsy, migraines, motion sickness, or a concussion should refrain from participating.<\/span><\/p>\n<h4>Cultural differences?<\/h4>\n<p><span class=\"Y2IQFc\" lang=\"en\">TwinSAFE aims to strengthen road safety research in Europe by sharing knowledge and research experience among the three universities. This aligns with a broader European ambition: the EU intends to reduce road fatalities and serious injuries by 50 percent by 2030.<\/span><\/p>\n<p><span class=\"Y2IQFc\" lang=\"en\">All three countries are testing the same scenarios, adapted to local conditions. This allows the test results to be compared side by side.\u00a0<\/span><span class=\"Y2IQFc\" lang=\"en\">\u201cUltimately, we want to be able to determine whether a particular measure works everywhere, or whether there are, in fact, cultural differences,\u201d says Ali Pirdavani of UHasselt.<\/span><\/p>\n<p><span class=\"Y2IQFc\" lang=\"en\">&#8220;We use a driving simulator for safety. We compare driving behavior in a given situation \u2013 first without a specific measure in place, and then with it. If the intervention proves effective, we then test the scenario on the actual road.&#8221;\u00a0<\/span><span class=\"Y2IQFc\" lang=\"en\">All test subjects in the simulator experience the exact same traffic situation. This allows for a valid comparison of the results.<\/span><\/p>\n<h4>Similar scientific research<\/h4>\n<p>In 2025, <span class=\"Y2IQFc\" lang=\"en\">UHasselt published similar scientific research with concrete results. Furthermore, field studies from the Netherlands, the United Kingdom, and the United States confirm that a speed limit sign alone is generally insufficient.<\/span><\/p>\n<p><span class=\"Y2IQFc\" lang=\"en\">For example, researchers found that a row of trees along the road had no significant effect, that drivers tended to start slowing down when encountering transverse road markings, and that these markings \u2013 when combined with a physical narrowing of the road \u2013 achieved the best balance between speed and controlled driving behavior.<\/span><\/p>\n<p><span class=\"Y2IQFc\" lang=\"en\">On a winding road or chicane, the researchers observed the strongest braking effect, but also abrupt braking or evasive maneuvers at times, and renewed acceleration. <\/span><span class=\"Y2IQFc\" lang=\"en\">Another notable conclusion was that an intervention at the village boundary is not sufficient to change driving behavior throughout the entire village.<\/span><\/p>\n<h4>Other European countries<\/h4>\n<p><span class=\"Y2IQFc\" lang=\"en\">Recent Dutch research by SWOV from May 2026 into the effect of lowering the speed limit from 50 to 30 km\/h revealed that the average actual speed driven was 35.3 km\/h; without any redesign of the road, the reduction in speed was only 2 km\/h, while with a redesign, it was approximately 5.5 km\/h.<\/span><\/p>\n<p><span class=\"Y2IQFc\" lang=\"en\">British researchers investigated the effect of interventions at village entrances but found that speed control within the village itself remained limited without additional measures.<\/span><\/p>\n<p><span class=\"Y2IQFc\" lang=\"en\">The French government agency Cerema determined that road shifts physically compel drivers to adjust their speed. <\/span><span class=\"Y2IQFc\" lang=\"en\">The US FHWA (Federal HighWay Administration) found that speed display signs, raised platforms, and median islands were particularly effective. Purely visual road narrowings or painted warnings generally had little effect.<\/span><\/p>\n<h4>Guidelines<\/h4>\n<p><span class=\"Y2IQFc\" lang=\"en\">Flanders, however, already has guidelines for designing a transition to a lower speed \u2013 specifically, a lateral shift in the road alignment combined with a central median \u2013 to signal to drivers that they are entering a different type of traffic environment.<\/span><\/p>\n<p><span class=\"Y2IQFc\" lang=\"en\">The key lesson from various countries is that a village entrance should not merely be recognizable as such; the entire road design must match the desired speed. <\/span><span class=\"Y2IQFc\" lang=\"en\">A wide, straight, and open stretch of asphalt will always invite drivers to speed, even if the official speed limit is 30 km\/h.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Researchers\u00a0at IMOB, the Institute for Mobility at UHasselt University, want to understand how road design can cause drivers to slow down. It is generally known that introducing a 30 km\/h zone by simply putting up a sign is not enough; you also have to redesign the road. Otherwise, it won\u2019t work. Scientists also want to [&hellip;]<\/p>\n","protected":false},"author":175,"featured_media":197266,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\r\n\r\n{excerpt}\r\n\r\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[25,7,31,77201,4],"tags":[],"class_list":["post-197237","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-legislation","category-mobility","category-road-safety","category-study","category-top-stories-today"],"acf":[],"featured_image_urls_v2":{"full":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?fit=893%2C590&ssl=1",893,590,false],"thumbnail":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?resize=150%2C150&ssl=1",150,150,true],"medium":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?fit=300%2C198&ssl=1",300,198,true],"medium_large":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?fit=640%2C423&ssl=1",640,423,true],"large":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?fit=640%2C423&ssl=1",640,423,true],"1536x1536":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?fit=893%2C590&ssl=1",893,590,true],"2048x2048":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?fit=893%2C590&ssl=1",893,590,true],"trp-custom-language-flag":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?fit=18%2C12&ssl=1",18,12,true],"related-thumb":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?resize=640%2C480&ssl=1",640,480,true],"gform-image-choice-sm":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?resize=300%2C300&ssl=1",300,300,true],"gform-image-choice-md":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?resize=400%2C400&ssl=1",400,400,true],"gform-image-choice-lg":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?resize=600%2C590&ssl=1",600,590,true],"mailchimp":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?fit=560%2C370&ssl=1",560,370,true],"unipress-phone":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?resize=640%2C100&ssl=1",640,100,true],"unipress-tablet":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?resize=893%2C240&ssl=1",893,240,true],"unipress-tablet-portrait":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?resize=893%2C180&ssl=1",893,180,true],"unipress-tablet-landscape":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?resize=893%2C180&ssl=1",893,180,true],"unipress-smartphone":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?resize=893%2C168&ssl=1",893,168,true],"unipress-wide-screen":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?resize=893%2C180&ssl=1",893,180,true]},"post_excerpt_stackable_v2":"<p>Researchers\u00a0at IMOB, the Institute for Mobility at UHasselt University, want to understand how road design can cause drivers to slow down. It is generally known that introducing a 30 km\/h zone by simply putting up a sign is not enough; you also have to redesign the road. Otherwise, it won\u2019t work. Scientists also want to find out whether a measure that makes Belgian drivers slow down would have the same effect in Croatia or Sweden. The\u00a0joint study on road design and driving behavior is part of the European TwinSAFE project, in which UHasselt collaborates with the University of Zagreb and&hellip;<\/p>\n","category_list_v2":"<a href=\"https:\/\/newmobility.news\/en\/category\/legislation\/\" rel=\"category tag\">Legislation<\/a>, <a href=\"https:\/\/newmobility.news\/en\/category\/mobility\/\" rel=\"category tag\">Mobility<\/a>, <a href=\"https:\/\/newmobility.news\/en\/category\/road-safety\/\" rel=\"category tag\">Road safety<\/a>, <a href=\"https:\/\/newmobility.news\/en\/category\/study\/\" rel=\"category tag\">Study<\/a>, <a href=\"https:\/\/newmobility.news\/en\/category\/top-stories-today\/\" rel=\"category tag\">Top Stories Today<\/a>","author_info_v2":{"name":"Hilde Van Raemdonck","url":"https:\/\/newmobility.news\/en\/author\/hilde-van-raemdonck\/"},"comments_num_v2":"0 comments","yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>UHasselt: slower by design, why speed signs aren&#039;t enough - newmobility.news<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/newmobility.news\/en\/2026\/11\/05\/uhasselt-slower-by-design-why-speed-signs-arent-enough\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"UHasselt: slower by design, why speed signs aren&#039;t enough - newmobility.news\" \/>\n<meta property=\"og:description\" content=\"Researchers\u00a0at IMOB, the Institute for Mobility at UHasselt University, want to understand how road design can cause drivers to slow down. It is generally known that introducing a 30 km\/h zone by simply putting up a sign is not enough; you also have to redesign the road. Otherwise, it won\u2019t work. Scientists also want to [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/newmobility.news\/en\/2026\/11\/05\/uhasselt-slower-by-design-why-speed-signs-arent-enough\/\" \/>\n<meta property=\"og:site_name\" content=\"newmobility.news\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/search\/top\/?q=newmobility.news\" \/>\n<meta property=\"article:published_time\" content=\"2026-11-05T12:15:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/11\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?fit=893%2C590&ssl=1\" \/>\n\t<meta property=\"og:image:width\" content=\"893\" \/>\n\t<meta property=\"og:image:height\" content=\"590\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Hilde Van Raemdonck\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@jorisvry\" \/>\n<meta name=\"twitter:site\" content=\"@jorisvry\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Hilde Van Raemdonck\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/11\\\/05\\\/uhasselt-slower-by-design-why-speed-signs-arent-enough\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/11\\\/05\\\/uhasselt-slower-by-design-why-speed-signs-arent-enough\\\/\"},\"author\":{\"name\":\"Hilde Van Raemdonck\",\"@id\":\"https:\\\/\\\/newmobility.news\\\/#\\\/schema\\\/person\\\/7540fd72a981bf6a315ba1b874c2a464\"},\"headline\":\"UHasselt: slower by design, why speed signs aren&#8217;t enough\",\"datePublished\":\"2026-11-05T12:15:50+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/11\\\/05\\\/uhasselt-slower-by-design-why-speed-signs-arent-enough\\\/\"},\"wordCount\":664,\"publisher\":{\"@id\":\"https:\\\/\\\/newmobility.news\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/11\\\/05\\\/uhasselt-slower-by-design-why-speed-signs-arent-enough\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/i0.wp.com\\\/newmobility.news\\\/wp-content\\\/uploads\\\/2026\\\/11\\\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?fit=893%2C590&ssl=1\",\"articleSection\":[\"Legislation\",\"Mobility\",\"Road safety\",\"Study\",\"Top Stories Today\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/11\\\/05\\\/uhasselt-slower-by-design-why-speed-signs-arent-enough\\\/\",\"url\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/11\\\/05\\\/uhasselt-slower-by-design-why-speed-signs-arent-enough\\\/\",\"name\":\"UHasselt: slower by design, why speed signs aren't enough - newmobility.news\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/newmobility.news\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/11\\\/05\\\/uhasselt-slower-by-design-why-speed-signs-arent-enough\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/11\\\/05\\\/uhasselt-slower-by-design-why-speed-signs-arent-enough\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/i0.wp.com\\\/newmobility.news\\\/wp-content\\\/uploads\\\/2026\\\/11\\\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?fit=893%2C590&ssl=1\",\"datePublished\":\"2026-11-05T12:15:50+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/11\\\/05\\\/uhasselt-slower-by-design-why-speed-signs-arent-enough\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/newmobility.news\\\/2026\\\/11\\\/05\\\/uhasselt-slower-by-design-why-speed-signs-arent-enough\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/newmobility.news\\\/2026\\\/11\\\/05\\\/uhasselt-slower-by-design-why-speed-signs-arent-enough\\\/#primaryimage\",\"url\":\"https:\\\/\\\/i0.wp.com\\\/newmobility.news\\\/wp-content\\\/uploads\\\/2026\\\/11\\\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?fit=893%2C590&ssl=1\",\"contentUrl\":\"https:\\\/\\\/i0.wp.com\\\/newmobility.news\\\/wp-content\\\/uploads\\\/2026\\\/11\\\/Scherm%C2%ADafbeelding-2026-11-05-om-11.17.14.png?fit=893%2C590&ssl=1\",\"width\":893,\"height\":590,\"caption\":\"Introducing a 30 km\\\/h zone by simply putting up a sign is not enough; you also have to redesign the road. 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