Eastern England A-Z Road AtlasPublished at a clear 2. 5 miles to 1 inch the following features are shown on the road mapping: Motorways with full junction detail, primary routes and destinations, A & B roads, under construction and proposed roads, service areas, tolls, mileages, county and unitary authority boundaries National Park boundaries Selected places of interest and tourist information centres Separate city, town, airport, and port plans The comprehensive index section