The colour scheme used to denote a primary route.

In the Great Britain road numbering scheme, primary status is indicative of the importance of locations in the country with respect to road traffic. The status is awarded to settlements and structures of importance (the primary destinations) and to the roads that connect them (the primary routes). Great Britain has many ancient roads and trackways dating back not only to the Roman occupation of southern Britain but to much earlier times, including the oldest engineered road to be discovered anywhere in the world: the Sweet Track dating from the 3800s BC. With the advent of the motor... A typical rural county road in Indiana, USA, where traffic drives on the right. ...

The status of both is maintained by the Department for Transport in combination with the Highways Agency in England and Wales and the Scottish Executive in Scotland. The concept was invented in the 1960s following the upsurge in inter-city travel in the country. In the United Kingdom, the Department for Transport is the government department responsible for the transport network. ... The Highways Agency is an executive agency, part of the Department for Transport, in the United Kingdom. ... The term Scottish Executive is used in two distinct but closely related senses. ... ... The 1960s decade refers to the years from 1960 to 1969, inclusive. ...

Primary route

Primary routes are mostly A-roads are identified on maps with green lines, and on the ground the road is signed with green-backed signs with white text and yellow road numbers. However, a given primary route between two destinations often takes a route which does not match that of a single numbered road, given that the roads were numbered long before the primary system was developed; instead, A-roads gain and lose primary status where required.

In addition, most motorways in the United Kingdom are de facto primary routes, while maintaining their traditional (white-on blue) colour scheme. A complete listing of motorways in the United Kingdom. ... De facto is a Latin expression that means in fact or in practice. It is commonly used as opposed to de jure (meaning by law) when referring to matters of law or governance or technique (such as standards), that are found in the common experience as created or developed without...

Primary destination

Primary destinations usually cities and large towns, where a lot of traffic is expected to head to. In more rural areas, smaller towns tend to be awarded primary status. In addition, some airports, sea ports, bridges and tunnels are primary destinations as they attract a lot of traffic. Historically, city status was associated with the presence of a cathedral, such as York Minster. ... Categories: Stub | Commercial item transport and distribution | Transportation ... A log bridge A bridge is a structure built to span a gorge, valley, road, railroad track, river, body of water, or any other physical obstacle. ... A disused railway tunnel now converted to pedestrian and bicycle use, near Houyet, Belgium A tunnel is an underground passage. ...