{"id":38,"date":"2016-02-12T08:00:18","date_gmt":"2016-02-12T14:00:18","guid":{"rendered":"http:\/\/www.insure-us.org\/blog\/?p=38"},"modified":"2016-02-03T08:43:03","modified_gmt":"2016-02-03T14:43:03","slug":"the-duration-of-yellow-lights-is-unpredictable","status":"publish","type":"post","link":"https:\/\/www.insure-us.org\/blog\/the-duration-of-yellow-lights-is-unpredictable\/","title":{"rendered":"The Duration of Yellow Lights is Unpredictable"},"content":{"rendered":"<p><a href=\"https:\/\/www.insure-us.org\/blog\/wp-content\/uploads\/2016\/02\/stoplight.jpg\" rel=\"attachment wp-att-39\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-medium wp-image-39\" src=\"https:\/\/www.insure-us.org\/blog\/wp-content\/uploads\/2016\/02\/stoplight-125x300.jpg\" alt=\"stoplight\" width=\"125\" height=\"300\" srcset=\"https:\/\/www.insure-us.org\/blog\/wp-content\/uploads\/2016\/02\/stoplight-125x300.jpg 125w, https:\/\/www.insure-us.org\/blog\/wp-content\/uploads\/2016\/02\/stoplight-425x1024.jpg 425w, https:\/\/www.insure-us.org\/blog\/wp-content\/uploads\/2016\/02\/stoplight.jpg 576w\" sizes=\"auto, (max-width: 125px) 100vw, 125px\" \/><\/a>Traffic engineers in the United States have never agreed on how to time yellow lights so the interval between green and red is just right.<br \/>\nIf it&#8217;s too short, drivers may run the red light by mistake. If it&#8217;s too long, they may intentionally risk driving through the intersection.<br \/>\nIn the past, the Institute of Transportation Engineers (ITE) has tried to come up with a formula, but they couldn&#8217;t get enough support from their 15,000-plus members. That was 30 years ago, but they&#8217;re trying to create a standard again. Their findings might come before the board late this year at the earliest.<br \/>\nThe current proposal relies on four factors: determining how long the yellow should last; vehicle approach speed; driver perception-reaction time; and the deceleration rate and grade of the road. Because no studies are available on these factors, the information they use will be approximations.<br \/>\nTimothy Gates, an engineering professor at Michigan State University and co-author of an ITE report, says it&#8217;s a matter of validating appropriate input values.<br \/>\n&#8220;If the formula suggests you need 4.5 seconds, and if you provide drivers with 3 seconds, you&#8217;re putting drivers into a case where they either have to stop abruptly or proceed through and run the risk of running the red light,&#8221; Gates reported recently in The Wall Street Journal.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Traffic engineers in the United States have never agreed on how to time yellow lights so the interval between green and red is just right. If it&#8217;s too short, drivers may run the red light by mistake. If it&#8217;s too long, they may intentionally risk driving through the intersection. In the past, the Institute of [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,1],"tags":[],"class_list":["post-38","post","type-post","status-publish","format-standard","hentry","category-auto-insurance","category-insurance"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.insure-us.org\/blog\/wp-json\/wp\/v2\/posts\/38","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.insure-us.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.insure-us.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.insure-us.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.insure-us.org\/blog\/wp-json\/wp\/v2\/comments?post=38"}],"version-history":[{"count":2,"href":"https:\/\/www.insure-us.org\/blog\/wp-json\/wp\/v2\/posts\/38\/revisions"}],"predecessor-version":[{"id":41,"href":"https:\/\/www.insure-us.org\/blog\/wp-json\/wp\/v2\/posts\/38\/revisions\/41"}],"wp:attachment":[{"href":"https:\/\/www.insure-us.org\/blog\/wp-json\/wp\/v2\/media?parent=38"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.insure-us.org\/blog\/wp-json\/wp\/v2\/categories?post=38"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.insure-us.org\/blog\/wp-json\/wp\/v2\/tags?post=38"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}