Editing Highway (section)

== Statistics ==
[[File:Autoroute F.svg|thumb|upright=0.7|International sign used widely in Europe denoting the start of special restrictions for a section of highway classed as a motorway]]
[[File:M8-RUS.svg|thumb|100px|Russian Federal [[M8 highway (Russia)|M8 highway]] sign]]
[[File:CBX Parkchester 6 jeh.JPG|thumb|upright=0.75|The [[Cross Bronx Expressway]] in [[New York City|New York, United States]] uses asphalt and concrete pavement, both of which are popular road surfaces on highways.]]

The United States has the world's largest network of highways, including both the [[Interstate Highway System]] and the [[United States Numbered Highway System]]. At least one of these networks is present in every state and they interconnect most major cities. It is also the world's most expensive mega-project,<ref>{{cite web | url=https://www.designingbuildings.co.uk/wiki/Top_10_most_expensive_construction_projects_in_the_world#:~:text=the%20project%20over.-,1.,expensive%20construction%20project%20to%20date | title=Top 10 most expensive construction projects in the world }}</ref> as the entirety of the Interstate Highway System was estimated to cost $27 billion in 1955 (equivalent to ${{formatprice|{{inflation|US-GDP|27000000000|1955|r=-6}}}} in {{inflation-year|US-GDP}}{{inflation-fn|US-GDP}}).<ref>{{Cite web |first = Richard |last = Weingroff |url=https://www.fhwa.dot.gov/infrastructure/target.cfm|title=Target: $27 Billion - The 1955 Estimate|work = Highway History |publisher = Federal Highway Administration}}</ref>

China's highway network is the second most extensive in the world, with a total length of about {{Convert|3,573,000|km|mi}}.<ref>{{cite news |url = http://uk.reuters.com/article/idUKPEK18598420071116 |archive-url = https://archive.today/20120730190327/http://uk.reuters.com/article/idUKPEK18598420071116 |url-status = dead |archive-date = 30 July 2012 |work = Reuters |title = China says needs extra million km of roads by 2020 |first = Emma |last = Graham-Harrison |date = 16 November 2007 }}</ref><ref name="China Nationa Bureau of Statistics 2007 Yearbook-Transport Section">{{cite web |url = http://www.stats.gov.cn/tjsj/ndsj/2008/html/P1503E.HTM |title = 15-3 Length of Transport Routes at Year-end by Region |publisher = China National Bureau of Statististcs |date = 2007 |access-date = 12 January 2013 }}</ref><ref>{{cite web |url = http://www.chinagate.cn/english/choice/50301.htm |title = China Has 3.48 Mln Km of Highways in Operation |publisher = Chinagate.cn |date = 6 March 2007 |access-date = 12 January 2013 |archive-url = https://web.archive.org/web/20130810000842/http://www.chinagate.cn/english/choice/50301.htm |archive-date = 10 August 2013 |url-status = dead }}</ref><ref>{{cite web |url = http://www.chinadaily.com.cn/bizchina/2008-01/07/content_6374334.htm |title = National highway target set for year |publisher = Chinadaily.com.cn |date = 7 January 2008 |access-date = 12 January 2013 }}</ref><ref>{{cite web |url = http://www.okokok.com.cn/Abroad/Class121/Class129/200812/121827.html |title = China Road Construction Report, 2007–2008 |publisher = Okokok.com.cn |date = 22 December 2008 |access-date = 12 January 2013 |archive-url = https://web.archive.org/web/20130809085805/http://www.okokok.com.cn/Abroad/Class121/Class129/200812/121827.html |archive-date = 9 August 2013 |url-status = dead }}</ref> China's [[Controlled-access highway|expressway]] network is the longest Expressway system in the world, and it is quickly expanding, stretching some {{Convert|85,000|km|mi}} at the end of 2011.<ref>{{cite web |author = Staff |url = http://www.newgeography.com/content/002003-china-expressway-system-exceed-us-interstates |title = China Expressway System to Exceed US Interstates |date = 10 February 2011 |work = New Geography |access-date = 21 March 2014 }}</ref><ref>{{cite web |url = http://www.csytv.com/news/china/2011-12-31/116464.html |title = 中国高速公路总里程达8.5万公里 今年新增1.1万&nbsp;– 沈阳广播电视台官方网站&nbsp;– 沈阳电视台&nbsp;– 资讯潮流 趣味生活 尽在沈视网！ |publisher = Csytv.com |access-date = 12 January 2013 |url-status = dead |archive-url = https://web.archive.org/web/20130202052902/http://www.csytv.com/news/china/2011-12-31/116464.html |archive-date = 2 February 2013 }}</ref> In 2008 alone, {{Convert|6,433|km|mi}} expressways were added to the network.<ref>{{cite web |url = http://www.chinadaily.com.cn/china/2009-01/16/content_7403145.htm |title = More rural roads planned this year |work = China Daily |date = 16 January 2009 |access-date = 12 January 2013 |author = Xin Dingding }}</ref>

;Longest international highway: The [[Pan-American Highway]], which connects many countries in the [[Americas]], is nearly {{Convert|25,000|km|mi|-2}} long {{As of|2005|lc=on}}.{{Citation needed|date=August 2010}} The Pan-American Highway is discontinuous because there is a [[Darién Gap|significant gap]] in it in southeastern [[Panama]], where the rainfall is immense and the terrain is entirely unsuitable for highway construction.
;Longest national highway (point to point): The [[Trans-Canada Highway]] has one main route, a northern route through the [[Western Canada|western provinces]], and several branches in the [[Central Canada|central]] and [[Atlantic Canada|eastern provinces]]. The main route is {{convert|7,821|km|mi}} long {{As of|2006|lc=on}} alone, and the entire system is over {{convert|10,700|km|mi}} long. The TCH runs east–west across southern Canada, the populated portion of the country, and it connects many of the major urban centres along its route crossing all provinces, and reaching nearly all of their capital cities.<ref name=Canada>{{cite news |url = https://www.cbc.ca/archives/topic/trans-canada-highway-bridging-the-distance |title = Trans-Canada Highway: Bridging the Distance |access-date = 20 December 2006 |work = CBC Digital Archives }}</ref> The TCH begins on the east coast in [[Newfoundland and Labrador|Newfoundland]], traverses that island, and crosses to the mainland by ferry. It crosses the [[The Maritimes|Maritime Provinces]] of eastern Canada with a branch route serving the province of [[Prince Edward Island]] via a ferry and bridge. After crossing the remainder of the country's mainland, the highway reaches [[Vancouver]], [[British Columbia]] on the [[British Columbia Coast|Pacific coast]], where a ferry continues it to [[Vancouver Island]] and the provincial capital of [[Victoria, British Columbia|Victoria]]. Numeric designation is the responsibility of the provinces, and there is no single route number across the country. 
;Longest national highway (circuit): Australia's [[Highway 1 (Australia)|Highway 1]] at over {{convert|14,500|km|mi|-2}}.{{Citation needed|date=August 2010}} It runs almost the entire way around the country's coastline. With the exception of the Federal Capital of [[Canberra]], which is far inland, Highway 1 links all of Australia's capital cities, although Brisbane and Darwin are not directly connected, but rather are bypassed short distances away. Also, there is a ferry connection to the island state of [[Tasmania]], and then a stretch of Highway 1 that links the major towns and cities of Tasmania, including [[Launceston, Tasmania|Launceston]] and [[Hobart]] (this state's capital city).
;Largest national highway system: The United States of America has approximately {{Convert|6.43|e6km|mi}} of highway within its borders {{As of|2008|lc=on}}.<ref>{{cite web |url = http://www.indexmundi.com/g/r.aspx?c=us&v=115 |title = Transportation: Roadways |author = Central Intelligence Agency |work = CIA World Factbook }}</ref>
;Busiest highway: [[Ontario Highway 401|Highway 401]] in [[Ontario]], Canada, has volumes surpassing an average of 500,000 vehicles per day in some sections of Toronto {{As of|2006|lc=on}}.<ref name=Ontario>{{cite web |title = Ontario government investing $401 million to upgrade Highway 401 |url = http://ogov.newswire.ca/ontario/GPOE/2002/08/06/c0057.html?lmatch=&lang=_e.html |access-date = 20 December 2006 |date = 6 August 2002 |author = Ministry of Transportation (Ontario) |archive-url = https://web.archive.org/web/20070914064434/http://ogov.newswire.ca/ontario/GPOE/2002/08/06/c0057.html?lmatch=&lang=_e.html |archive-date = 14 September 2007 }}</ref><ref name=Highway>{{cite news |url = http://www.urbanplanet.org/forums/index.php?showtopic=3459 |title = GTA Economy Dinged by Every Crash on the 401: North America's Busiest Freeway |first = Brian |last = Gray |newspaper = [[Toronto Sun]] |via = Urban Planet |date = 10 April 2004 |access-date = 18 March 2007 |quote = The 'phenomenal' number of vehicles on Hwy. 401 as it cuts through Toronto makes it the busiest freeway in North America... }}</ref>
;Widest highway (maximum number of lanes): The [[Katy Freeway]] (part of [[Interstate 10]]) in [[Houston]], [[Texas]], has a total of 26 lanes in some sections {{As of|2007|lc=on}}.{{Citation needed|date=August 2010}}<ref>{{cite web |url = http://www.inautonews.com/list-of-world-record-highways |title = List of World record highways |publisher = Inautonews.com |access-date = 21 March 2014 |archive-url = https://web.archive.org/web/20131111223514/http://www.inautonews.com/list-of-world-record-highways |archive-date = 11 November 2013 |url-status = dead |df = dmy-all }}</ref> However, they are divided up into general use/ [[frontage road]]s/ [[HOV lane]]s, restricting the traverse traffic flow.
;Widest highway (maximum number of through lanes): [[Interstate 5 in California|Interstate 5]] along a {{convert|2|mi|km|adj=mid|-long|order=flip}} section between [[Interstate 805]] and [[California State Route 56]] in [[San Diego, California]], which was completed in April 2007, is 22&nbsp;lanes wide.<ref>{{cite news |first = Steve |last = Schmidt |url = http://www.signonsandiego.com/uniontrib/20070328/news_1mi28merge.html |title = Four new southbound lanes at I-5/805 merge set to open |work = [[San Diego Union-Tribune]] |date = 28 March 2007 |url-status = dead |archive-url = https://web.archive.org/web/20110718110916/http://www.signonsandiego.com/uniontrib/20070328/news_1mi28merge.html |archive-date = 18 July 2011 }}</ref>
;Highest international highway: The [[Karakoram Highway]], between Pakistan and China, is at an altitude of {{convert|4693|m|ft}}.{{Citation needed|date=August 2010}}
;Highest national highway: [[National Highway 5 (India)|National Highway 5]], in India, connecting [[Amritsar]] in [[Punjab]] with [[Manali, Himachal Pradesh|Manali]] in [[Himachal Pradesh]] & [[Leh]] in [[Ladakh]], reaches an approximate altitude of {{convert|4900|m|ft}}.{{Citation needed|date=August 2010}} The highest motorable road passes through Umling La at an altitude of {{convert|5883|m|ft}} falls under the branch highway connecting National Highway 5 in India.{{cn|date=April 2025}}