{"id":5817,"date":"2017-12-04T07:00:37","date_gmt":"2017-12-03T18:00:37","guid":{"rendered":"https:\/\/www.drivingtests.co.nz\/resources\/?p=5817"},"modified":"2020-01-21T07:33:07","modified_gmt":"2020-01-20T18:33:07","slug":"why-are-roads-often-sloped-and-not-flat","status":"publish","type":"post","link":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/","title":{"rendered":"Why are roads often sloped and not flat?"},"content":{"rendered":"<p>Roads are angled for three reasons:<\/p>\n<ul>\n<li>Drainage<\/li>\n<li>Safety<\/li>\n<li>Terrain<\/li>\n<\/ul>\n<h2>Superelevation or banking<\/h2>\n<p>In an ideal world the road would be higher on the outside of the corner than the inside because this is safer and vehicles can travel around the corner faster without sliding. You can see this in action in American oval circuit racing such as the Indy 500 where it&#8217;s called &#8216;banking&#8217; or &#8216;superelevation&#8217;.<\/p>\n<div id=\"attachment_5818\" style=\"width: 560px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5818\" class=\"size-large wp-image-5818\" src=\"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/banked-racing-track-600x398.jpg\" alt=\"\" width=\"550\" height=\"365\" srcset=\"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/banked-racing-track-600x398.jpg 600w, https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/banked-racing-track-300x199.jpg 300w, https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/banked-racing-track-768x510.jpg 768w, https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/banked-racing-track.jpg 1920w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><p id=\"caption-attachment-5818\" class=\"wp-caption-text\">The banking on this racing track allows the cars to travel much faster<\/p><\/div>\n<p>When a vehicle is turned at speed, a force acts on it to push it towards the outside of the bend. When the road is banked, however slightly, some of this force is transferred to the suspension rather than the tyres. It&#8217;s especially useful when the roads are slippery because it increases a driver&#8217;s margin for error.<\/p>\n<p>The usual superelevation for New Zealand state highways is <a href=\"https:\/\/www.nzta.govt.nz\/assets\/resources\/state-highway-geometric-design-manual\/docs\/shgdm-part-4.pdf\">3 degrees fall<\/a> towards the inside of the curve. Where a corner has caused many accidents, the superelevation could be increased.<\/p>\n<p>The speed of the road usually dictates the angle of superelevation that&#8217;s installed.<\/p>\n<h2>Crowned roads<\/h2>\n<p>A two-way, single laned road with a crown has the centre line higher than the edges. This is the usual road construction for straight roads because it allows for drainage. It can cause problems, though, because tall vehicles lean towards the edge of the road and risk hitting poles and street signs close to the edge.<\/p>\n<div id=\"attachment_6447\" style=\"width: 560px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6447\" class=\"size-large wp-image-6447\" src=\"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/12\/camber-warning-large-vehicle-600x399.jpg\" alt=\"\" width=\"550\" height=\"366\" srcset=\"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/12\/camber-warning-large-vehicle-600x399.jpg 600w, https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/12\/camber-warning-large-vehicle-300x199.jpg 300w, https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/12\/camber-warning-large-vehicle-768x510.jpg 768w, https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/12\/camber-warning-large-vehicle.jpg 1500w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><p id=\"caption-attachment-6447\" class=\"wp-caption-text\">This sign in Hastings warns drivers of tall vehicles that the road is cambered and they risk hitting the power poles which are positioned at the edge of the pavement<\/p><\/div>\n<p>Puddles on roads cause a risk of <a href=\"https:\/\/www.drivingtests.co.nz\/resources\/skidding-explained-oversteer-understeer-hydroplaning-and-wheelspin\/\">aquaplaning<\/a>, therefore drainage is important. As the road approaches a corner, the outside lane is rotated upward to form superelevation before the curve. The stretch of road where this happens is called the <strong>crown runoff<\/strong>.<\/p>\n<p>The opposite of crown runoff is <strong>superelevation runoff<\/strong> where a fundamentally flat piece of road is gradually sloped into the correct superelevation angle before the corner.<\/p>\n<div id=\"attachment_5819\" style=\"width: 560px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5819\" class=\"size-large wp-image-5819\" src=\"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/superelevation-600x134.gif\" alt=\"\" width=\"550\" height=\"123\" srcset=\"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/superelevation-600x134.gif 600w, https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/superelevation-300x67.gif 300w, https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/superelevation-768x172.gif 768w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><p id=\"caption-attachment-5819\" class=\"wp-caption-text\">In this diagram, the white part shows a normal 2-lane road where the centre line or crown is higher than the edges. This is approaching a right-hand bend where the outside of the bend should be higher than the inside. Therefore, the angle of the road is rotated upwards on the left and downwards on the right, forming the superelevation.<\/p><\/div>\n<p>On a multi-lane road, there is a constant fall (&#8216;<strong>crossfall<\/strong>&#8216;) across the width of the lanes from the median strip to the edge of the left lane.<\/p>\n<div id=\"attachment_5820\" style=\"width: 560px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5820\" class=\"size-large wp-image-5820\" src=\"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/superelevation-2-600x177.gif\" alt=\"\" width=\"550\" height=\"162\" srcset=\"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/superelevation-2-600x177.gif 600w, https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/superelevation-2-300x89.gif 300w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><p id=\"caption-attachment-5820\" class=\"wp-caption-text\">On a multi-lane road like a motorway, the surface is angled up from one edge because there&#8217;s usually a crossfall across the entire width of the lanes.<\/p><\/div>\n<h2>Adverse camber<\/h2>\n<p>When a road slopes towards the outside of the bend it&#8217;s called adverse camber and it is more common on steep hills where it&#8217;s difficult to engineer superelevation into the road.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Roads are angled for three reasons: Drainage Safety Terrain Superelevation or banking In an ideal world the road would be higher on the outside of the corner than the inside because this is safer and vehicles can travel around the<span class=\"ellipsis\">&hellip;<\/span><\/p>\n<div class=\"read-more\"><a href=\"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/\">Read more &#8250;<\/a><\/div>\n<p><!-- end of .read-more --><\/p>\n","protected":false},"author":1,"featured_media":5818,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"footnotes":""},"categories":[3],"tags":[358,237],"class_list":["post-5817","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-advice","tag-road","tag-road-construction"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why are roads often sloped and not flat? - DT Vehicle and Workplace Training Resources<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why are roads often sloped and not flat? - DT Vehicle and Workplace Training Resources\" \/>\n<meta property=\"og:description\" content=\"Roads are angled for three reasons: Drainage Safety Terrain Superelevation or banking In an ideal world the road would be higher on the outside of the corner than the inside because this is safer and vehicles can travel around the&hellip;Read more &#8250;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/\" \/>\n<meta property=\"og:site_name\" content=\"DT Vehicle and Workplace Training Resources\" \/>\n<meta property=\"article:published_time\" content=\"2017-12-03T18:00:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-01-20T18:33:07+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/banked-racing-track.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1275\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Darren Cottingham\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Darren Cottingham\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/why-are-roads-often-sloped-and-not-flat\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/why-are-roads-often-sloped-and-not-flat\\\/\"},\"author\":{\"name\":\"Darren Cottingham\",\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/#\\\/schema\\\/person\\\/64c053b1d745d9548919d7dfec618f23\"},\"headline\":\"Why are roads often sloped and not flat?\",\"datePublished\":\"2017-12-03T18:00:37+00:00\",\"dateModified\":\"2020-01-20T18:33:07+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/why-are-roads-often-sloped-and-not-flat\\\/\"},\"wordCount\":523,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/why-are-roads-often-sloped-and-not-flat\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/wp-content\\\/uploads\\\/2017\\\/07\\\/banked-racing-track.jpg\",\"keywords\":[\"road\",\"road construction\"],\"articleSection\":[\"Advice\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/why-are-roads-often-sloped-and-not-flat\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/why-are-roads-often-sloped-and-not-flat\\\/\",\"url\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/why-are-roads-often-sloped-and-not-flat\\\/\",\"name\":\"Why are roads often sloped and not flat? - DT Vehicle and Workplace Training Resources\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/why-are-roads-often-sloped-and-not-flat\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/why-are-roads-often-sloped-and-not-flat\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/wp-content\\\/uploads\\\/2017\\\/07\\\/banked-racing-track.jpg\",\"datePublished\":\"2017-12-03T18:00:37+00:00\",\"dateModified\":\"2020-01-20T18:33:07+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/why-are-roads-often-sloped-and-not-flat\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/why-are-roads-often-sloped-and-not-flat\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/why-are-roads-often-sloped-and-not-flat\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/wp-content\\\/uploads\\\/2017\\\/07\\\/banked-racing-track.jpg\",\"contentUrl\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/wp-content\\\/uploads\\\/2017\\\/07\\\/banked-racing-track.jpg\",\"width\":1920,\"height\":1275,\"caption\":\"The banking on this racing track allows the cars to travel much faster\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/why-are-roads-often-sloped-and-not-flat\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Why are roads often sloped and not flat?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/#website\",\"url\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/\",\"name\":\"DT Driver Training\",\"description\":\"Resources for drivers, machine operators and other employees taking online and blended courses\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/#organization\"},\"alternateName\":\"DT Vehicle and Workplace Training\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/#organization\",\"name\":\"DT Driver Training\",\"url\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/wp-content\\\/uploads\\\/2018\\\/05\\\/cropped-Logo-DT-800px.png\",\"contentUrl\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/wp-content\\\/uploads\\\/2018\\\/05\\\/cropped-Logo-DT-800px.png\",\"width\":512,\"height\":512,\"caption\":\"DT Driver Training\"},\"image\":{\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/#\\\/schema\\\/person\\\/64c053b1d745d9548919d7dfec618f23\",\"name\":\"Darren Cottingham\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/87ccaaf5d8ab791058c89e0b1f61c1a4c18d0928aa5463ffebdec4e01f5ff046?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/87ccaaf5d8ab791058c89e0b1f61c1a4c18d0928aa5463ffebdec4e01f5ff046?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/87ccaaf5d8ab791058c89e0b1f61c1a4c18d0928aa5463ffebdec4e01f5ff046?s=96&d=mm&r=g\",\"caption\":\"Darren Cottingham\"},\"description\":\"Darren has written over 3000 articles about driving and vehicles, plus almost 500 vehicle reviews and numerous driving courses. Connect with him on LinkedIn by clicking the name above\",\"sameAs\":[\"https:\\\/\\\/www.linkedin.com\\\/in\\\/darrencottingham\\\/\"],\"url\":\"https:\\\/\\\/www.drivingtests.co.nz\\\/resources\\\/author\\\/darren\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Why are roads often sloped and not flat? - DT Vehicle and Workplace Training Resources","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/","og_locale":"en_US","og_type":"article","og_title":"Why are roads often sloped and not flat? - DT Vehicle and Workplace Training Resources","og_description":"Roads are angled for three reasons: Drainage Safety Terrain Superelevation or banking In an ideal world the road would be higher on the outside of the corner than the inside because this is safer and vehicles can travel around the&hellip;Read more &#8250;","og_url":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/","og_site_name":"DT Vehicle and Workplace Training Resources","article_published_time":"2017-12-03T18:00:37+00:00","article_modified_time":"2020-01-20T18:33:07+00:00","og_image":[{"width":1920,"height":1275,"url":"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/banked-racing-track.jpg","type":"image\/jpeg"}],"author":"Darren Cottingham","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Darren Cottingham","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/#article","isPartOf":{"@id":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/"},"author":{"name":"Darren Cottingham","@id":"https:\/\/www.drivingtests.co.nz\/resources\/#\/schema\/person\/64c053b1d745d9548919d7dfec618f23"},"headline":"Why are roads often sloped and not flat?","datePublished":"2017-12-03T18:00:37+00:00","dateModified":"2020-01-20T18:33:07+00:00","mainEntityOfPage":{"@id":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/"},"wordCount":523,"commentCount":0,"publisher":{"@id":"https:\/\/www.drivingtests.co.nz\/resources\/#organization"},"image":{"@id":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/#primaryimage"},"thumbnailUrl":"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/banked-racing-track.jpg","keywords":["road","road construction"],"articleSection":["Advice"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/","url":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/","name":"Why are roads often sloped and not flat? - DT Vehicle and Workplace Training Resources","isPartOf":{"@id":"https:\/\/www.drivingtests.co.nz\/resources\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/#primaryimage"},"image":{"@id":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/#primaryimage"},"thumbnailUrl":"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/banked-racing-track.jpg","datePublished":"2017-12-03T18:00:37+00:00","dateModified":"2020-01-20T18:33:07+00:00","breadcrumb":{"@id":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/#primaryimage","url":"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/banked-racing-track.jpg","contentUrl":"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2017\/07\/banked-racing-track.jpg","width":1920,"height":1275,"caption":"The banking on this racing track allows the cars to travel much faster"},{"@type":"BreadcrumbList","@id":"https:\/\/www.drivingtests.co.nz\/resources\/why-are-roads-often-sloped-and-not-flat\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.drivingtests.co.nz\/resources\/"},{"@type":"ListItem","position":2,"name":"Why are roads often sloped and not flat?"}]},{"@type":"WebSite","@id":"https:\/\/www.drivingtests.co.nz\/resources\/#website","url":"https:\/\/www.drivingtests.co.nz\/resources\/","name":"DT Driver Training","description":"Resources for drivers, machine operators and other employees taking online and blended courses","publisher":{"@id":"https:\/\/www.drivingtests.co.nz\/resources\/#organization"},"alternateName":"DT Vehicle and Workplace Training","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.drivingtests.co.nz\/resources\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.drivingtests.co.nz\/resources\/#organization","name":"DT Driver Training","url":"https:\/\/www.drivingtests.co.nz\/resources\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.drivingtests.co.nz\/resources\/#\/schema\/logo\/image\/","url":"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2018\/05\/cropped-Logo-DT-800px.png","contentUrl":"https:\/\/www.drivingtests.co.nz\/resources\/wp-content\/uploads\/2018\/05\/cropped-Logo-DT-800px.png","width":512,"height":512,"caption":"DT Driver Training"},"image":{"@id":"https:\/\/www.drivingtests.co.nz\/resources\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.drivingtests.co.nz\/resources\/#\/schema\/person\/64c053b1d745d9548919d7dfec618f23","name":"Darren Cottingham","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/87ccaaf5d8ab791058c89e0b1f61c1a4c18d0928aa5463ffebdec4e01f5ff046?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/87ccaaf5d8ab791058c89e0b1f61c1a4c18d0928aa5463ffebdec4e01f5ff046?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/87ccaaf5d8ab791058c89e0b1f61c1a4c18d0928aa5463ffebdec4e01f5ff046?s=96&d=mm&r=g","caption":"Darren Cottingham"},"description":"Darren has written over 3000 articles about driving and vehicles, plus almost 500 vehicle reviews and numerous driving courses. Connect with him on LinkedIn by clicking the name above","sameAs":["https:\/\/www.linkedin.com\/in\/darrencottingham\/"],"url":"https:\/\/www.drivingtests.co.nz\/resources\/author\/darren\/"}]}},"_links":{"self":[{"href":"https:\/\/www.drivingtests.co.nz\/resources\/wp-json\/wp\/v2\/posts\/5817","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.drivingtests.co.nz\/resources\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.drivingtests.co.nz\/resources\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.drivingtests.co.nz\/resources\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.drivingtests.co.nz\/resources\/wp-json\/wp\/v2\/comments?post=5817"}],"version-history":[{"count":3,"href":"https:\/\/www.drivingtests.co.nz\/resources\/wp-json\/wp\/v2\/posts\/5817\/revisions"}],"predecessor-version":[{"id":6448,"href":"https:\/\/www.drivingtests.co.nz\/resources\/wp-json\/wp\/v2\/posts\/5817\/revisions\/6448"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.drivingtests.co.nz\/resources\/wp-json\/wp\/v2\/media\/5818"}],"wp:attachment":[{"href":"https:\/\/www.drivingtests.co.nz\/resources\/wp-json\/wp\/v2\/media?parent=5817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.drivingtests.co.nz\/resources\/wp-json\/wp\/v2\/categories?post=5817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.drivingtests.co.nz\/resources\/wp-json\/wp\/v2\/tags?post=5817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}