Dual Carriageway

A dual carriageway (North American English: divided highway) is a class of highway with two carriageways for traffic travelling in opposite directions separated by a central reservation (North American English: median). 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 central reservation is a single carriageway (North American English: undivided highway) regardless of the number of lanes. Dual carriageways have improved road traffic safety over single carriageways and typically have higher speed limits as a result. In some places, express lanes and local/collector lanes are used within a local-express-lane system to provide more capacity and to smooth traffic flows for longer-distance travel.

Read more about Dual Carriageway:  History

Other articles related to "dual carriageway, carriageway, dual, dual carriageways":

Milton Keynes Grid Road System - Horizontal Grid Roads
... Whilst being a dual carriageway for most of its length, it starts its route in the west of the town at a double roundabout with V4 Watling Street before running as a single carriageway up until a junction with the ... From this point, it becomes a dual carriageway and is co-designated as the A422 ... The H5 Portway begins its life in Oakhill as a single carriageway and remains as such up until its junction with the A5 (aerial view ...
A749 (road)
... for the A725 road, starting as a dual carriageway ... The road continues for another brief spell as a 40-mile-per-hour dual carriageway ... the road drops to a 30-mile-per-hour zone and the dual carriageway section abruptly ends at a wall below Burnside Railway Station ...
M6 Motorway (Ireland) - History
... sections which now form part of the M6 were initially opened as dual-carriageway and previously formed part of the N6, while other sections were opened as motorway ... in brackets) Kinnegad-Tyrellspass (5 December 2006, as dual carriageway) Tyrellspass-Kilbeggan (16 May 2007, as dual carriageway) Kilbeggan-Athlone (16 July 2008, as dual carriageway ...
List Of Road Types By Features
... High No Yes 2+2 road High No Yes Type of dual carriageway Alley Uncontrolled Low Yes No Arterial road High No Optional Autobahn Interchange High No Yes Autocesta ...
Dual Carriageway - Other Regional Implementations - Malaysia
... Known dual carriageways in Malaysia include the North-South Expressway (the main motorway system in Peninsular Malaysia), the East Coast Expressway (serving the Peninsular ... Apart from major motorways and expressways, treelined dual carriageways also pass through most urban areas ...

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