Dual carriageway
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A dual carriageway (British English) or divided highway (American English) is a type of road. It is an important route that usually carries long-distance traffic.
A dual carriageway has four lanes (2 lanes each side), and is always separated by a man-made barrier or strip of land.
Dual carriageways have no hard shoulder. A hard shoulder is an area at the side of a road where drivers can stop if there is a serious problem, a breakdown for example.[1][2]
Dual Carriageway Media
Freeway of Route 25 between Tuluá and Andalucía, Valle del Cauca, Colombia. In 2014 there were 2,279 kilometers of dual carriageway highways in Colombia.
Clara Barton Parkway outside Washington, D.C.
- German Autobahn 1936 1939.jpg
A German dual carriageway in the 1930s
Jersey barriers may be used to separate the carriageways where the space is narrow. See this example near Málaga, Spain. There is also a bus stop in the bottom-right corner of the picture; it would not exist in a motorway.
Diagram of types of road in the UK
A typical modern Irish dual carriageway (opened 2004) along the N11, south of Newtownmountkennedy. On motorways, the yellow hard shoulder markings are unbroken.
An example of a 2+2 dual-carriageway in Ireland. This type is similar to many found in the UK.
Die Bundesstraße 6 bei Harlingerode, Westblick Richtung Goslar/Immenrode, Dezember 2018. Im Hintergrund der Windpark Harlingerode.
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References
- ↑ "Cambridge Dictionaries Online: Cambridge Advanced Learner's Dictionary: hard shoulder". Cambridge University Press. Retrieved 2011-03-05.
- ↑ "Hard Shoulder Safety" (PDF). Green Flag Motoring Assistance. p. 3. Archived from the original (PDF) on 2011-11-20. Retrieved 2011-03-05.
