{"id":3203,"date":"2025-05-05T19:13:25","date_gmt":"2025-05-05T19:13:25","guid":{"rendered":"https:\/\/betterdrivingsaveslives.co.uk\/?page_id=3203"},"modified":"2025-05-05T20:04:21","modified_gmt":"2025-05-05T20:04:21","slug":"three-truths-about-speed-overview","status":"publish","type":"page","link":"https:\/\/betterdrivingsaveslives.co.uk\/?page_id=3203","title":{"rendered":"Three Truths About Speed (Overview)"},"content":{"rendered":"\n<p><strong>Three Truths About Speed (1) :<\/strong> <strong>Speed Variance And Crash Risk<\/strong><\/p>\n\n\n\n<p>The graphs below show the situation in British Columbia but there is every reason to suppose that the same injustices would be evident in Wales. <\/p>\n\n\n\n<p>The first priority of the new Welsh Government in 2026, unfettered by woke dogma, must surely be to eliminate injustice. <\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"446\" height=\"290\" src=\"https:\/\/betterdrivingsaveslives.co.uk\/wp-content\/uploads\/2025\/04\/isku_85th_1.gif\" alt=\"\" class=\"wp-image-2613\" style=\"width:655px;height:auto\"\/><\/figure>\n\n\n\n<p>This graph shows that crash risk is minimized for those drivers travelling 10-15 km\/h <em>over<\/em> the average speed. (Average speeds in BC are almost always over posted speeds.) <\/p>\n\n\n\n<p>Contrary to popular belief, there are more crashes at slower speeds than at faster speeds.<\/p>\n\n\n\n<p>Raw speed and crash risk are not directly related, however, there is a U-shaped relationship which shows few fast drivers involved in crashes, and many more slow drivers involved in crashes.<sup><a href=\"https:\/\/www.sense.bc.ca\/research.htm#1\" target=\"_blank\" rel=\"noreferrer noopener\">1<\/a><\/sup><\/p>\n\n\n\n<p><strong>There Truths About Speed (2) : Speed Limits Target Safe Drivers<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"446\" height=\"290\" src=\"https:\/\/betterdrivingsaveslives.co.uk\/wp-content\/uploads\/2025\/04\/isku_85th_2.gif\" alt=\"\" class=\"wp-image-2617\"\/><\/figure>\n\n\n\n<p>Under current BC speed limits, safe drivers are included within the red enforcement zone (the fastest 15% of vehicles). Speed enforcement should only target the top 2-5%.<\/p>\n\n\n\n<p>Enforcement tolerances set by police are often incorrect and result in even lower tolerances.<sup><a href=\"https:\/\/www.sense.bc.ca\/research.htm#2\" target=\"_blank\" rel=\"noreferrer noopener\">2<\/a><\/sup><\/p>\n\n\n\n<p><strong>Three Truth About Speed (3) : Proper Speed Limits Increase Safety<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"446\" height=\"290\" src=\"https:\/\/betterdrivingsaveslives.co.uk\/wp-content\/uploads\/2025\/04\/isku_85th_3.gif\" alt=\"\" class=\"wp-image-2621\" style=\"width:630px;height:auto\"\/><\/figure>\n<\/div>\n\n\n<p>The 85th percentile is the speed to which 85 percent of drivers travel below (under average, free-flow conditions).<\/p>\n\n\n\n<p>Setting speed limits according to the standards of the&nbsp;<a href=\"http:\/\/www.ite.org\/\" target=\"_blank\" rel=\"noreferrer noopener\">Institute of Transportation Engineers<\/a>&nbsp;(the 85th percentile method) will\u2026<br>* focus enforcement on dangerous drivers, not revenue collection<br>* increase speed limit compliance<br>* provide greater consistency of speed limits<br>* reduce speed variance resulting in reduced crashes<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Three Truths About Speed (1) : Speed Variance And Crash Risk The graphs below show the situation in British Columbia but there is every reason to suppose that the same injustices would be evident in Wales. The first priority of the new Welsh Government in 2026, unfettered by woke dogma, must surely be to eliminate [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3203","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/betterdrivingsaveslives.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/3203","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/betterdrivingsaveslives.co.uk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/betterdrivingsaveslives.co.uk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/betterdrivingsaveslives.co.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/betterdrivingsaveslives.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3203"}],"version-history":[{"count":3,"href":"https:\/\/betterdrivingsaveslives.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/3203\/revisions"}],"predecessor-version":[{"id":3213,"href":"https:\/\/betterdrivingsaveslives.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/3203\/revisions\/3213"}],"wp:attachment":[{"href":"https:\/\/betterdrivingsaveslives.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}