{"id":34163,"date":"2024-12-23T18:53:22","date_gmt":"2024-12-23T13:23:22","guid":{"rendered":"https:\/\/www.nextias.com\/ca\/?p=34163"},"modified":"2024-12-23T19:10:15","modified_gmt":"2024-12-23T13:40:15","slug":"speed-gun","status":"publish","type":"post","link":"https:\/\/www.nextias.com\/ca\/current-affairs\/23-12-2024\/speed-gun","title":{"rendered":"Speed Gun"},"content":{"rendered":"\n<p><strong>Syllabus: GS3\/ S&amp;T<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>In News<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>To combat speeding vehicles, traffic police across India have increasingly adopted speed guns as a crucial enforcement tool to ensure road safety.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>About Speed Gun<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Definition:<\/strong> Devices used to measure the speed of moving objects without contact, commonly used by traffic police to enforce speed limits.<\/li>\n\n\n\n<li><strong>Working:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Doppler effect:<\/strong> They rely on the change in frequency of waves (usually radio waves) reflected off a moving vehicle.<\/li>\n\n\n\n<li><strong>Higher frequency = approaching:<\/strong> If the vehicle is moving towards the gun, the frequency of the reflected waves increases.<\/li>\n\n\n\n<li><strong>Lower frequency = moving away:<\/strong> If the vehicle is moving away, the frequency decreases.<\/li>\n\n\n\n<li><strong>Speed Calculation: <\/strong>The gun calculates the speed based on this frequency difference.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Limitations<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Beam Divergence:<\/strong> Radio waves can spread out, potentially measuring the speed of multiple vehicles simultaneously, leading to inaccurate readings.<\/li>\n\n\n\n<li><strong>Interference:<\/strong> Continuous-wave radar can be affected by reflections from multiple vehicles or other objects, causing errors.<\/li>\n\n\n\n<li><strong>Cost:<\/strong> Advanced systems are needed to compensate for these limitations, making them more expensive.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Transition to LIDAR Speed Guns<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>LIDAR (Light Detection and Ranging): <\/strong>Uses laser light instead of radio waves for better targeting and accuracy.<\/li>\n\n\n\n<li><strong>Advantages:<\/strong> Minimal beam divergence ensures precise measurements.\n<ul class=\"wp-block-list\">\n<li>Superior performance in high-traffic environments.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>Source: TH<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>To combat speeding vehicles, traffic police across India have increasingly adopted speed guns as a crucial enforcement tool to ensure road safety.<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-34163","post","type-post","status-publish","format-standard","hentry","category-current-affairs"],"acf":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/34163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/comments?post=34163"}],"version-history":[{"count":1,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/34163\/revisions"}],"predecessor-version":[{"id":34164,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/34163\/revisions\/34164"}],"wp:attachment":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/media?parent=34163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/categories?post=34163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/tags?post=34163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}