Carriageway: Difference between revisions
Sarrotrkux (talk | contribs) Changed image since the original one doesn't give a good overview |
Vchimpanzee (talk | contribs) Hatnote (may need disambiguation) |
||
| Line 1: | Line 1: | ||
{{redirect|Roadway|the trucking company|Roadway Services|the motel chain|Rodeway Inn}} |
|||
[[File:Carriageway diagram.svg|thumb|400px|Diagram showing different arrangements of the elements of a road]] |
[[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]]]] |
[[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]]]] |
||
Revision as of 16:51, 23 July 2021
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). 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.
See also
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.