Carriageway: Difference between revisions

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A carriageway (British English)^[1] or roadway (North American English)^[2] consists of a width of road on which a vehicle is not restricted by any physical barriers or separation to move laterally. A carriageway generally consists of a number of traffic lanes together with any associated shoulder, but may be a sole lane in width (for example, a highway offramp).

Description

A single carriageway road (North American English: undivided highway) has one carriageway with 1, 2 or more lanes together with any associated footways (North American English: sidewalk) and road verges (North American English: tree belt, parkway, or other regional variants). A dual carriageway road (North American English: divided highway) has two roadways separated by a central reservation (North American English: median). A local-express lane system (also called collector-express or collector-distributor) has more than two roadways, typically two sets of 'local lanes' or 'collector lanes' and also two sets of 'express lanes'. "Cars only" lanes may be physically separated from those open to mixed traffic including trucks and buses. The New Jersey Turnpike (I-95) in the United States, uses this design from the Pennsylvania Turnpike to its northern terminus at the George Washington Bridge in Fort Lee. High-occupancy vehicle lanes may also be physically separated from the remainder of the general traffic lanes as a distinct roadway. Some cities such as Pittsburgh, Pennsylvania, have many bus-only roadways to alleviate congestion related to public transit buses, despite its very challenging topography which severely limits the extent to which arterial roadways can be added or augmented.

References

^ "Multi-lane carriageways (133-143)". Highway Code. A dual carriageway is a road which has a central reservation to separate the carriageways.
^ "Railroad-Highway Grade Crossing Handbook - Revised Second Edition August 2007 - Glossary". Federal Highway Administration. The portion of a highway, including shoulders, for vehicular use. A divided highway has two or more roadways.

[1] "Multi-lane carriageways (133-143)". Highway Code. A dual carriageway is a road which has a central reservation to separate the carriageways.

[2] "Railroad-Highway Grade Crossing Handbook - Revised Second Edition August 2007 - Glossary". Federal Highway Administration. The portion of a highway, including shoulders, for vehicular use. A divided highway has two or more roadways.

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+{{Short description|Width of road on which a vehicle is not restricted by any physical barriers}}
+{{Redirect|Roadway}}
 [[File:Carriageway diagram.svg|thumb|400px|Diagram showing different arrangements of the elements of a road]]
+[[File:Phb dt 8180 ASt Heimfeld.jpg|thumb|400x400px|An intersection of the [[Germany|German]] [[Bundesautobahn 9|A7]] [[Autobahn]] near [[Hamburg]] showing [[Slip lane|slip roads]] as well as [[Shoulder (road)|shoulders]]]]
 {{Wiktionary|carriageway}}
-A '''carriageway'''<ref>{{cite web|url=http://www.direct.gov.uk/en/TravelAndTransport/Highwaycode/DG_070308|title=Multi-lane carriageways (133-143)|quote=A dual carriageway is a road which has a central reservation to separate the carriageways.|work=Highway Code}}</ref> ([[North American English]]: '''roadway'''<ref>{{cite web|url=http://safety.fhwa.dot.gov/xings/com_roaduser/07010/appena.htm|title=Railroad-Highway Grade Crossing Handbook - Revised Second Edition August 2007 - Glossary|publisher=Federal Highway Administration|quote=The portion of a highway, including shoulders, for vehicular use. A divided highway has two or more roadways.}}</ref>) consists of a width of [[road]] on which a vehicle is not restricted by any physical barriers or separation to move [[lateral movement|laterally]]. A carriageway generally consists of a number of [[lane|traffic lanes]] together with any associated [[shoulder (road)|shoulder]], but may be a sole lane in width (for example, a highway [[Interchange (road)|offramp]]).
+A '''carriageway''' ([[British English]])<ref>{{cite web|url=http://www.direct.gov.uk/en/TravelAndTransport/Highwaycode/DG_070308|title=Multi-lane carriageways (133-143)|quote=A dual carriageway is a road which has a central reservation to separate the carriageways.|work=Highway Code}}</ref> or '''roadway''' ([[North American English]])<ref>{{cite web|url=https://highways.dot.gov/safety/hsip/xings/railway-highway-crossing-program-overview|title=Railroad-Highway Grade Crossing Handbook - Revised Second Edition August 2007 - Glossary|publisher=Federal Highway Administration|quote=The portion of a highway, including shoulders, for vehicular use. A divided highway has two or more roadways.}}</ref> consists of a width of [[road]] on which a vehicle is not restricted by any physical barriers or separation to move laterally. A carriageway generally consists of a number of [[lane|traffic lanes]] together with any associated [[shoulder (road)|shoulder]], but may be a sole lane in width (for example, a highway [[Interchange (road)|offramp]]).
-A [[single carriageway]] road (North American English: undivided highway) has one carriageway with 1, 2 or more lanes together with any associated [[sidewalk|footways]] (North American English: sidewalk) and [[road verge]]s (North American English: tree belt). A [[dual carriageway]] road (North American English: divided highway) has two roadways separated by a [[central reservation]] (North American English: median). A [[local-express lanes|local-express]] lane system (also called collector-express or collector-distributor) has more than two roadways, typically two sets of 'local lanes' or 'collector lanes' and also two sets of 'express lanes'. "Cars only" lanes may be physically separated from those open to mixed traffic including trucks and buses. Roughly the northern half of the [[New Jersey Turnpike]] in the United States, from [[Jamesburg, New Jersey|Jamesburg]] to its northern limit in [[Secaucus, New Jersey|Secaucus]], is an example of this design. [[High-occupancy vehicle lane]]s may also be physically separated from the remainder of the general traffic lanes as a distinct roadway. Some cities such as [[Pittsburgh, Pennsylvania]], have many buses-only roadways to alleviate congestion related to public transit buses, despite its very challenging topography which severely limits the extent to which arterial roadways can be added or augmented.
+==Description==
+A [[single carriageway]] road (North American English: undivided highway) has one carriageway with 1, 2 or more lanes together with any associated [[sidewalk|footways]] (North American English: sidewalk) and [[road verge]]s (North American English: tree belt, parkway, or other regional variants). A [[dual carriageway]] road (North American English: divided highway) has two roadways separated by a [[central reservation]] (North American English: median). A [[local-express lanes|local-express]] lane system (also called collector-express or collector-distributor) has more than two roadways, typically two sets of 'local lanes' or 'collector lanes' and also two sets of 'express lanes'. "Cars only" lanes may be physically separated from those open to mixed traffic including trucks and buses. The [[New Jersey Turnpike]] ([[Interstate 95|I-95]]) in the United States, uses this design from the [[Pennsylvania Turnpike]] to its northern terminus at the [[George Washington Bridge]] in [[Fort Lee, New Jersey|Fort Lee]]. [[High-occupancy vehicle lane]]s may also be physically separated from the remainder of the general traffic lanes as a distinct roadway. Some cities such as [[Pittsburgh, Pennsylvania]], have many bus-only roadways to alleviate congestion related to public transit buses, despite its very challenging topography which severely limits the extent to which arterial roadways can be added or augmented.
 ==See also==
+* [[Chaussee]]
+* [[Dual carriageway]]
 * [[Frontage road|Frontage road / lane]]
+* [[Geometric design of roads]]
+* [[Road#Terminology|Road terminology]]
 ==References==
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 [[Category:Road infrastructure]]
-{{road-stub}}
 [[de:Straßenquerschnitt#Fahrbahn]]