network maps
These maps give analytical data on the major road network of Mainland Britain,
using a schematic map to display various bits of useful information.
For the purposes of these maps, motorways and high-quality dual-carriageway
A-Roads which are seen as being strategically important to the national network
are shown. The "all-purpose" A-Roads which are shown have either very few or no
junctions which are not grade separated - this means that there must be an
overwhelming majority of motorway-style junctions present.
With thanks to Chris Marshall, Sotonsteve, Jonathan Randall and Simon Hollett for providing information
relating to these maps.