Numbered Route
A route (or road) number, designation or abbreviation is an identifying numeric (or alphanumeric) designation assigned by a highway authority to a particular stretch of roadway to distinguish it from other routes and, in many cases, also to indicate its classification (e.g. motorway, primary route, regional road, etc.), general geographical location (in zonal numbering systems) and/or orientation (north-south v. east-west). The numbers chosen may be used solely for internal administrative purposes; however, in most cases they are also displayed on roadside signage and indicated on maps. Use of letters Letters are often used in road designations to indicate a class of roadways. Within such a class, roads are distinguished from each other by a road number. The way such letters are used depends on the country or other political jurisdiction which contains and controls the road. For instance, among A1 motorways, the one in Spain has a hyphen between the A and the 1 (Autovia A-1) while ...
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Numbered Street
A numbered street is a street whose name is an ordinal number, as in ''Second Street'' or ''Tenth Avenue''. Such forms are among the most common street names in North America, but also exist in other parts of the world, especially in Colombia, which takes the system to an extreme, and the Middle East. Numbered streets were first used in Philadelphia and now exist in many major cities and small towns. Grid-based naming systems usually start at 1 (but sometimes at a higher number or even at zero), and then proceed in numerical order. In the United States, seven out of the top ten most common street names are numbers, with the top three names being "2nd," "3rd," and "1st" respectively. Streets named "0th" are quite uncommon, however, but do exist (sometimes spelled out "Zero Street") (like 0 Avenue in BC, Canada), and negative numbered streets (i.e, "−1st", "−2nd", etc.) are extraordinarily rare. Fractional numbered streets exist in some places, such as Street in Springfie ...
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G Road (other)
G road may refer to : * China National Highways The China National Highways (CNH/Guodao) () is a network of trunk roads across mainland China. Apart from the expressways of China that are planned and constructed later, most of the CNH are not controlled-access highways. History The bu ..., a series of trunk roads throughout mainland China with G-prefixed road numbers * In the United States: ** County-designated highways in zone G in Michigan ** Corridor G, part of the Appalachian Development Highway System in Kentucky and West Virginia {{disambiguation ...
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R Road (other)
R road may refer to: * Ring roads in Belgium * R roads in the Czech Republic - expressways * Regional roads in Ireland * R roads in Malaysia, roads in Perlis * Regional roads in Senegal * R roads in Slovakia are "Rýchlostná cesta" (expressways) * Regional Routes in South Africa, designated with letter R * Provincial Routes in South Africa, also designated with letter R * Corridor R The Appalachian Development Highway System (ADHS) is a series of highway corridors in the Appalachia region of the eastern United States. The routes are designed as local and regional routes for improving economic development in the historic ...

Q Road
Corridor Q is a highway in the U.S. states of Kentucky, Virginia, and West Virginia. It is part of the Appalachian Development Highway System and U.S. Route 460. Corridor Q runs from Corridor B ( US 23/ US 119) near Pikeville, Kentucky easterly to Interstate 81 in Christiansburg, Virginia. Corridor Q does not meet any ADHS Corridors other than B, but it meets the planned Coalfields Expressway ( U.S. Route 121) near Grundy, Virginia, the King Coal Highway (U.S. Route 52) in Bluefield, West Virginia, and Interstate 77 just to the east near Princeton. At its west end, traffic can continue northwesterly along Corridor B, Corridor R, Corridor I, and Interstate 64 to reach Lexington, Kentucky. The part of Corridor Q east of Bluefield is part of the I-73/74 North-South Corridor. History Kentucky Corridor Q in Kentucky exists between Corridor B/ US 23/ US 119 at Yeager to the VA 80 near Breaks, Virginia. The corridor is expected to continue southeastward to the Coalfields E ...
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P Road (other)
P road may refer to : * P roads in Belarus, republican roads * P road in Latvia, first class roads * P roads in Malaysia, roads in Penang * P roads in Ukraine, state regional roads * Corridor P, a highway in the U.S. state of Pennsylvania {{disambig ...
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O Road
The Appalachian Development Highway System (ADHS) is a series of highway corridors in the Appalachia region of the eastern United States. The routes are designed as local and regional routes for improving economic development in the historically isolated region. It was established as part of the Appalachian Regional Development Act of 1965, and has been repeatedly supplemented by various federal and state legislative and regulatory actions. The system consists of a mixture of state, U.S., and Interstate routes. The routes are formally designated as "corridors" and assigned a letter. Signage of these corridors varies from place to place, but where signed are often done so with a distinctive blue-colored sign. A 2019 study found that the construction of the ADHS led to economic net gains of $54 billion (approximately 0.4 percent of national income) and boosted incomes in the Appalachian region by reducing the costs of trade. History In 1964, the President's Appalachian R ...
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