Dual carriageway
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
- Cassius Ahenobarbus Map of Latium.png
Map by Cassius Ahenobarbus, zoomed in to show the Via Portuensis, with the dual carriageway splitting close to the city of Rome. This is a very early (perhaps the first) example of a dual carriageway.
- Autostrada A20 Torregrotta.jpg
Autostrada A20 runs through the island of Sicily in Italy linking Palermo to Messina
- IMG 2238 - Clara Barton Pkwy at NSWC (looking east).JPG
Clara Barton Parkway outside Washington, D.C.
- The highway in Calahonda, Spain 2005.jpg
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.
- Uk carriageway guide.png
Diagram of types of road in the UK
- N11 road south of Newtownmountkennedy.jpg
A typical modern Irish dual carriageway (opened 2004) along the N11, south of Newtownmountkennedy. On motorways, the yellow hard shoulder markings are unbroken.
- N4 Dromad-Roosky (bright enhance filter).jpg
An example of a 2+2 dual-carriageway in Ireland. This type is similar to many found in the UK.
- Bundesstraße 6 Harlingerode Westblick.jpg
Die Bundesstraße 6 bei Harlingerode, Westblick Richtung Goslar/Immenrode, Dezember 2018. Im Hintergrund der Windpark Harlingerode.
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.
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