A nationally consistent geographically referenced framework for Great Britain, comprising the National Grid and the National Topographic Database that defines each geographical feature as it exists in the real world.

TOP 10

1. travel guides

2. satellite navigation

3. gps

4. directions

5. route planner

6. satnav

7. atlas

8. postcodes

9. gis

10. compass

sat nav systems travel guides route planners travel resources GPS