Controlled-access highway  

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 +[[Image:Autobahn logo.png|left|thumb|200px|[[Autobahn]] logo]][[Image:German Autobahn 1936 1939.jpg|thumb|230px|A [[German]] [[autobahn]] in the [[1930s]]]]
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-"Sweltering [[Controlled-access highway|motorist]]s do not seem to have a history . . . As a reality a [[Traffic congestion|traffic jam]] is impressive, but it doesn't say much." —[[Arrigo Benedetti]], L'Espresso, Rome, 6.21.64"--"[[La autopista del sur]]" epigraph+"Sweltering motorists do not seem to have a history . . . As a reality a [[traffic jam]] is impressive, but it doesn't say much." —"[[La autopista del sur]]" (1966) by Julio Cortázar
 +<hr>
 +"Wir fahren auf der [[Controlled-access highway|Autobahn]]"--"[[Autobahn (song)|Autobahn]]" (1974) by Kraftwerk
|} |}
-[[Image:Autobahn logo.png|left|thumb|200px|[[Autobahn]] logo]][[Image:German Autobahn 1936 1939.jpg|thumb|230px|A [[German]] [[autobahn]] in the [[1930s]]]]+ 
{{Template}} {{Template}}
-A '''controlled-access highway''' is a [[highway]] designed exclusively for high-speed vehicular traffic, with all traffic flow and ingress/egress regulated. They are known by various terms worldwide, including '''''Autobahn''''', '''''autostrada''''', '''''autopista''''', '''''autoroute''''', '''freeway''', '''motorway''', '''''otoyol''''', '''''snelweg''''', '''thruway''', and sometimes less precise terms such as '''expressway''', '''[[highway]]''', '''[[Interstate Highway System|Interstate]]''', or '''[[parkway]]'''. They may also be called '''[[limited-access highway]]s''', although this term can also refer to a class of highway with somewhat less isolation from other traffic.+A '''controlled-access highway''' is a [[road]] designed exclusively for high-speed vehicular traffic, with all traffic flow and ingress/egress regulated. They are known by various terms worldwide, including '''''Autobahn''''', '''''autostrada''''', '''''autopista''''', '''''autoroute''''', '''freeway''', '''motorway''', '''''otoyol''''', '''''snelweg''''', '''thruway''', and sometimes less precise terms such as '''expressway''', '''[[highway]]''', '''[[Interstate Highway System|Interstate]]''', or '''parkway'''.
-A controlled-access highway provides an unhindered flow of traffic, with no [[traffic signals]], [[Intersection (road)|intersections]] or [[frontage|property access]]. They are free of any [[at-grade intersection|at-grade crossings]] with other roads, railways, or pedestrian paths, which are instead carried by [[overpass]]es and [[underpass]]es across the highway. Entrance and exit to the highway are provided at [[Interchange (road)|interchanges]] by slip roads (ramps), which allow for speed changes between the highway and [[arterial road]]s and [[collector road]]s. On the controlled-access highway, opposing directions of travel are generally separated by a [[central reservation]] containing a [[traffic barrier]] or just a strip of grass.+Controlled-access highways evolved during the first half of the 20th century. The [[Long Island Motor Parkway]], opened in 1908 as a private venture, was the world's first limited-access roadway. Italy opened its first ''autostrada'' in 1925. Germany began to build its first 30km ''autobahn'' controlled-access highway without speed limits (then referred to as a ''dual highway'') in 1932 between Cologne and Bonn (now A555). It then rapidly assembled a nationwide system of such roads in anticipation of their use in [[World War II]]. The first North American ''freeways'' (known as parkways) opened in the [[New York City]] area in the 1920s. Britain, heavily influenced by the railways, did not build its first ''motorway'', the [[Preston By-pass]], until 1958.
- +
-Controlled-access highways evolved during the first half of the 20th century. The [[Long Island Motor Parkway]], opened in 1908 as a private venture, was the world's first limited-access roadway. Italy opened its first ''[[autostrada]]'' in 1925. Germany began to build its first {{convert|30|km|mi|adj=on}} ''[[autobahn]]'' controlled-access highway without speed limits (then referred to as a ''dual highway'') in 1932 between Cologne and Bonn (now A555). It then rapidly assembled a nationwide system of such roads in anticipation of their use in [[World War II]]. The first North American ''freeways'' (known as parkways) opened in the [[New York City]] area in the 1920s. Britain, heavily influenced by the railways, did not build its first ''motorway'', the [[Preston By-pass]], until 1958.+
- +
-Most technologically advanced nations feature an extensive network of freeways or motorways. Many have a national-level system of [[Road number|route numbering]].+
 +Most technologically advanced nations feature an extensive network of freeways or motorways.Long-distance travel by [[highway]] has to some degree been displaced by [[airplane]], but not entirely - especially in countries adopting [[high-speed rail]]
 +==Autobahn==
 +In Germany, the controlled-access highway is called '''Autobahn''' and the term was immortalized in the musical composition of the same name by Kraftwerk.
==See also== ==See also==
-# a [[broad]] [[highway]] designed for [[high]] [[speed]] [[traffic]], having [[restriction]]s on the [[vehicle]] [[type]]s [[permitted]]+*[[Road trip]]
-*[[List of controlled access highway systems]]+*[[Concrete Evidence: 1M]]
-*[[List of OECD countries by road network size]]+*[[Autobahn (song)]]
- +*[[Autobahn (album)]]
{{GFDL}} {{GFDL}}

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"Sweltering motorists do not seem to have a history . . . As a reality a traffic jam is impressive, but it doesn't say much." —"La autopista del sur" (1966) by Julio Cortázar


"Wir fahren auf der Autobahn"--"Autobahn" (1974) by Kraftwerk

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A controlled-access highway is a road designed exclusively for high-speed vehicular traffic, with all traffic flow and ingress/egress regulated. They are known by various terms worldwide, including Autobahn, autostrada, autopista, autoroute, freeway, motorway, otoyol, snelweg, thruway, and sometimes less precise terms such as expressway, highway, Interstate, or parkway.

Controlled-access highways evolved during the first half of the 20th century. The Long Island Motor Parkway, opened in 1908 as a private venture, was the world's first limited-access roadway. Italy opened its first autostrada in 1925. Germany began to build its first 30km autobahn controlled-access highway without speed limits (then referred to as a dual highway) in 1932 between Cologne and Bonn (now A555). It then rapidly assembled a nationwide system of such roads in anticipation of their use in World War II. The first North American freeways (known as parkways) opened in the New York City area in the 1920s. Britain, heavily influenced by the railways, did not build its first motorway, the Preston By-pass, until 1958.

Most technologically advanced nations feature an extensive network of freeways or motorways.Long-distance travel by highway has to some degree been displaced by airplane, but not entirely - especially in countries adopting high-speed rail

Autobahn

In Germany, the controlled-access highway is called Autobahn and the term was immortalized in the musical composition of the same name by Kraftwerk.

See also





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