{"id":44144,"date":"2014-08-04T22:30:54","date_gmt":"2014-08-05T04:30:54","guid":{"rendered":"http:\/\/hill-kleerup.org\/blog\/2014\/08\/04\/the-crowdsourcing-of-speed-limits.html"},"modified":"2014-08-06T18:19:56","modified_gmt":"2014-08-07T00:19:56","slug":"the-crowdsourcing-of-speed-limits","status":"publish","type":"post","link":"https:\/\/hill-kleerup.org\/blog\/2014\/08\/04\/the-crowdsourcing-of-speed-limits.html","title":{"rendered":"The Crowdsourcing of Speed Limits"},"content":{"rendered":"
People tend to go at a pretty constant speed along given thoroughfares, regardless of the actual limit unless<\/i> there is a known speed trap. \u00a0Raising the speed limit doesn't actually make people drive much faster; lowering it doesn't really slow them down. \u00a0People have a sense of what is appropriate for a given thoroughfare.<\/p>\n

So why not set speed limits based on that? \u00a0The answer is twofold: (a) locals along the road want a slower limit because they think it will actually make people drive more slowly, and (b) cities and their police departments want a slower limit because they know that people will still drive faster, leading to speeding ticket revenue generation.<\/p>\n

(h\/t +<\/span>Yonatan Zunger<\/a><\/span>)<\/p>\n

Reshared post from +Kirill Grouchnikov<\/a><\/strong><\/p>\n

Traffic engineers believe that the 85th percentile speed is the ideal speed limit because it leads to the least variability between driving speeds and therefore safer roads. When the speed limit is correctly set at the 85th percentile speed, the minority of drivers that do conscientiously follow speed limits are no longer driving much slower than the speed of traffic. The choice of the 85th percentile speed is a data-driven conclusion — as noted Lt. Megge and speed limit resources like the\u00a0Michigan State Police\u2019s guide\u00a0— that has been established by the consistent findings of years of traffic studies.<\/i>\ufeff<\/p><\/blockquote>\n<\/div>\n

\n

\n \n <\/div>\n

Is Every Speed Limit Too Low?<\/a>
\n Americans nearly universally speed, and excess speed is a factor in many accidents. But what if higher speed limits made roads safer?\n <\/p>\n

View this post on Google+<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

People tend to go at a pretty constant speed along given thoroughfares, regardless of the actual limit unless there is a known speed trap. \u00a0Raising the speed limit doesn't actually make people drive much faster; lowering it doesn't really slow them down. \u00a0People have a sense of what is appropriate for a given thoroughfare. So … Continue reading “The Crowdsourcing of Speed Limits”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","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}},"categories":[106,5,9],"tags":[],"class_list":["post-44144","post","type-post","status-publish","format-standard","hentry","category-plusposts","category-cars","category-politics-law"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":5751,"url":"https:\/\/hill-kleerup.org\/blog\/2004\/07\/22\/end_of_an_era_a.html","url_meta":{"origin":44144,"position":0},"title":"End of an Era Ahead","author":"***Dave","date":"Thu 22-Jul-04 2:14pm","format":false,"excerpt":"Say it ain't so, Hans! Speed limits on the autobahn? Experts estimate that in the next few years, the EU will impose a standard speed limit on all European highways,...","rel":"","context":"In "Cars"","block_context":{"text":"Cars","link":"https:\/\/hill-kleerup.org\/blog\/category\/cars"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":5314,"url":"https:\/\/hill-kleerup.org\/blog\/2004\/04\/08\/need_for_speed.html","url_meta":{"origin":44144,"position":1},"title":"Need for speed?","author":"***Dave","date":"Thu 8-Apr-04 6:54am","format":false,"excerpt":"The city of Pleasanton, Calif., is introducing a new weapon in the fight against speeders: Smart Stop Lights. 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