InSouth Africa some roads are designated asnumbered routes to help with navigation. There is a nationwidenumbering scheme consisting ofnational,provincial andregional routes, and within various urban areas there are schemes of metropolitan route numbering.[1][2]
In the nationwide numbering scheme, routes are divided into a hierarchy of three categories:national routes, which are the most important routes connecting major cities;provincial routes, which connecting smaller cities and towns to the national route network; andregional routes, which connect smaller towns to the route network. Route numbers are allocated to these classes as follows:[3]
These numbers are allocated by the Route Numbering and Road Traffic Signs Sub Committee within the Roads Co-ordinating Body,[1] an organisation which contains representatives from road authorities in national, provincial andlocal government
In metropolitan numbering schemes the local authority can designate routes consisting of M followed by any number, but it should not use numbers the same as those used by national, provincial or regional routes in the same area.[3] This rule is not universally followed, for example inJohannesburg where there is both anN1 and anM1 and inBloemfontein where there is both anR30 and anM30.
ThePietermaritzburg-Hilton area andKrugersdorp are the only urban areas that do not form part of ametropolitan municipality but still have metropolitan routes. The following metropolitan municipalities and their cities have metropolitan numbering schemes.
