PortalsTechnologyTransportRoads

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Jalan Ampang at night, with the Petronas Twin Towers visible in the background in Kuala Lumpur, Malaysia.
Roads, defined as a path connecting two points, are generally classified into a hierarchy. At the top of the hierarchy are freeways (US) (UK: motorways), which serve entirely a function of moving vehicles between other roads. Freeways are grade-separated and limited access, have high speeds and carry heavy flows. Below freeways are arterials. These may not be grade-separated, and while access is still generally limited, it is not limited to the same extent as freeways, particularly on older roads. These serve both a movement and an access function. Next are collector/distributor roads. These serve more of an access function, allowing vehicles to access the network from origins and destinations, as well as connecting with smaller, local roads, that have only an access function, and are not intended for the movement of vehicles with neither a local origin nor destination. Local roads are designed to be low speed and carry relatively little traffic.

The design of roads is specified in a number of design manual, including the AASHTO Policy on the Geometric Design of Streets and Highways (or Green Book). Relevant concerns include the alignment of the road, its horizontal and vertical curvature, its super-elevation or banking around curves, its thickness and pavement material, its cross-slope, and its width. Fundamentals of Transportation/Geography and Networks

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Tyne and Wear, England above the A1(M) motorway of vehicles driving on the left heading north and driving on the right heading south.
The A1 in London is an A road in North London. It runs from the London Wall to Bignell's Corner, where it crosses the M25 and becomes the A1(M) motorway, continuing to Edinburgh. (For the road outside London, see the main A1 road article.) The London section passes through 4 London Boroughs: the City of London, Islington, Haringey and Barnet. Whilst the route of the A1 outside London closely follows the historic route of the Great North Road, the London section for the most part does not.

The current route of the London section of the A1 road was (for the most part) designated as such in 1927. It comprises a number of historic streets in central London and the former suburbs of Islington, Holloway and Highgate and long stretches of purpose-built new roads in the outer London borough of Barnet, built to divert traffic away from the congested suburbs of Finchley and High Barnet.

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Interchange in Dubai, United Arab Emirates where Al Quta'eyat Road and Zabeel Road meet adjacent to Zabeel Park (on the left in the picture) next to the neighborhoods of Zabeel (at the bottom), Karama (in the upper left), and Oud Metha (in the upper right).
Credit: Imre Solt

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...that completion of the West Coast Highway viaduct — the longest in Singapore — was delayed for more than two years because of the contractor's financial problems?
... that in a toll dispute between residents of Bandar Mahkota Cheras and the Cheras-Kajang Highway concessionaire, a barrier blocking a shunpike was repeatedly torn down and rebuilt?

... that the Royal Road leading into Wawel Castle (pictured) through the medieval Old Town, goes by way of the only defensive gate still standing after the modernization of Kraków?

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The Rio–Niterói Bridge, officially part of the federal BR-101 Brazil highway system, and a landmark of Rio de Janeiro.
Credit: (Klaus with K)

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This list is transcluded from the tasks page, to edit this section click here.

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Here are some tasks you can do for WikiProject Highways:

  • Improve: You may always improve the quality of road articles by adding more information and references to enhance the overall readers' experience. Improvements to GA and FA quality is much appreciated! Also, nominations for Selected article and Selected picture are always needed, as with Did you know and News. Add to the Portal
  • Photo request: Just about all of them! Any pictures of Highways regions, road surface or infrastruture varieties or Highways would be useful. In particular we need Highways region maps that can be licensed for Wikipedia.
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  1. ^ "Saskatchewan's Global Transportation Hub". About Highways/Transportation Hub/. Government of Saskatchewan. Retrieved 2009-02-09.
  2. ^ Police don't know what prompted vicious bus attack, CTV.ca, July 31, 2008. Accessed August 6, 2008.

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