OS (GB) Meridian 2 (Motorways and A Roads)

Find a route over the Motorways and A Roads in an OS (GB) Meridian 2 Dataset

Select Analysis > Routing > Point-to-point.

Select OS (GB) Meridian 2 (Motorways and A Roads)

The following CASE expression is used for OS (GB) Meridian 2:

(_length# /
  CASE
    WHEN DESC$='Motorway' THEN 60
    WHEN DESC$='A Road' THEN 50
    ELSE 0
  END)
* (60 / 1609.344)