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- Dictionarydual carriageway
noun
- 1. a road with a dividing strip between the traffic in opposite directions and usually two or more lanes in each direction. British
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noun
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A dual carriageway (BrE) or a divided highway (AmE) is a class of highway with carriageways for traffic travelling in opposite directions separated by a central reservation (BrE) or median (AmE). Roads with two or more carriageways which are designed to higher standards with controlled access are generally classed as motorways, freeways, etc., rather than dual carriageways. A road without a centra... Wikipedia