dual carriageway

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dual carriageway

A car travels along a dual carriageway on a sunny day.

Definition
  1. Noun:
    • A road with two separate carriageways for traffic moving in opposite directions, divided by a central barrier or strip of land: A "dual carriageway" is a type of highway where traffic traveling in one direction is physically separated from oncoming traffic by a central reservation, such as a barrier, grass verge, or median strip. This design improves safety and traffic flow.
Usage
  • As a noun (countable): The term is used to describe a specific type of road infrastructure.
    • The old road was upgraded to a dual carriageway to reduce congestion.
    • Be careful when crossing the dual carriageway; use the pedestrian bridge.
Advanced Usage
  • "To be on a dual carriageway": To be traveling on this type of road.
    • Once you join the dual carriageway, you can increase your speed.
  • "A stretch of dual carriageway": Refers to a specific section of such a road.
    • There are roadworks on a ten-mile stretch of the dual carriageway.
Variants and Related Words
  • Divided highway (chiefly North American): The term most commonly used in American and Canadian English for a road with a median separating opposing traffic lanes. It is a direct synonym.
    • The interstate is a divided highway.
  • Carriageway (noun): Refers to one side of a road carrying traffic in a single direction. A "dual carriageway" consists of two carriageways.
    • The westbound carriageway is closed for repairs.
Synonyms
  • Divided highway: A road with a median separating lanes of opposing traffic.
  • Expressway (in some contexts): A major road designed for high-speed traffic, which may be a dual carriageway.
Related Phrases
  • Central reservation (UK) / Median (US): The area that divides the two carriageways on a dual carriageway or divided highway.
    • The car crashed through the central reservation.
  • Slip road (UK) / On-ramp/Off-ramp (US): A road that connects a dual carriageway or motorway to another road.
    • Take the next slip road to exit the dual carriageway.
Notes on Meaning
  • The term "dual carriageway" is standard in British English. In American English, the equivalent term is almost always "divided highway."
  • A "dual carriageway" is distinct from a "motorway" (UK) or "freeway" (US), which is a high-speed road with no at-grade crossings (i.e., no traffic lights or direct access from properties) and is typically a dual carriageway by design. All motorways are dual carriageways, but not all dual carriageways are motorways.
dual carriageway

A car travels along a dual carriageway on a sunny day.

Noun
  1. a highway divided down the middle by a barrier that separates traffic going in different directions
    • in Britain they call a divided highway a dual carriageway

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