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A21 Motorway (Switzerland)
This is a list of roads designated A21. Roads are sorted in the countries' alphabetical order. * A21 road (Australia), a road in South Australia * A21 (Toowoomba, QLD) * A21 motorway (Austria), a road connecting Altlengbach and the A1 to Vösendorf and the A2 * A21 road (England), a road connecting London with Hastings on the south coast * A21 motorway (France), a road connecting Aix-Noulette and Douai * A 21 motorway (Germany), a road connecting the road interchange with the A 1 at Bargteheide with Wankendorf * A21 motorway (Italy), a road connecting Turin and Brescia * A-21 motorway (Spain), a road connecting Jaca, Aragon and Pamplona, Navarre * A 21 road (Sri Lanka), a road connecting Kegalle and Karawanella * ''A21 road (United States of America)'' may refer to: ** A21 road (California), a road See also * List of highways numbered 21 ''For roads named A21 see ; List of A21 roads'' Route 21, or Highway 21, can refer to: International * European route E21 Australia * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Road Designation
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
