{"id":3333,"date":"2022-05-12T14:25:37","date_gmt":"2022-05-12T13:25:37","guid":{"rendered":"https:\/\/teleplanforsberg.com\/?p=3333"},"modified":"2022-12-22T15:54:02","modified_gmt":"2022-12-22T15:54:02","slug":"traffic-flow-monitoring-system","status":"publish","type":"post","link":"https:\/\/teleplanforsberg.com\/index.php\/2022\/05\/12\/traffic-flow-monitoring-system\/","title":{"rendered":"Traffic Flow Monitoring"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Monitoring traffic flow and congestion with sub-metre positioning.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Requirement<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The system had to provide sub-metre positioning sufficient to correctly identify probe-vehicles travelling in a high traffic volume motorway network and interchange system<\/li>\n\n\n\n<li>Vehicle velocity had to be given with an accuracy of 0.1 miles\/hr or better<\/li>\n\n\n\n<li>Vehicle position and velocity data was passed by cellular communications using SMS and GPRS data structures<\/li>\n\n\n\n<li>The probe cars are run by a highways authority to monitor managed roadway contractor invoices for payment approval. The system had to run continuously without being affected by vehicle use<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">Solution<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Our CPUpak-4 was modified to include a cellular telecoms card and built-in battery backup to maintain the 24\/7 heartbeat services<\/li>\n\n\n\n<li>Using remote cell phones, the watch-keepers and maintainers were able to monitor the system through the use of QA messages<\/li>\n\n\n\n<li>Any problem would be reported by SMS or GPRS immediately it occurred with location, vehicle ID and the nature of the fault<\/li>\n\n\n\n<li>For advanced debugging a full fault history could be downloaded to a computer with NAVPak quality control software.<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>Update<\/strong><\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Recently we upgraded this system with the CORE-1 GNSS system, bringing the technology up to date and improving the communications<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Monitoring traffic flow and congestion with sub-metre positioning.<\/p>\n","protected":false},"author":5,"featured_media":3334,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3333","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-survey"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.6 (Yoast SEO v27.6) - 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