How does the Altitude platform categorize road classes for analysis?

For planning clarity, Altitude groups OpenStreetMap road classes into five categories:

  • Highways (motorway)

  • Arterials (trunk, primary, secondary, tertiary)

  • Collectors (motorway_link, trunk/primary/secondary/tertiary_links)

  • Local roads (living_street, residential, service)

  • Other (unclassified, road)

See the Altitude Data Dictionary for more detailed information on road classes.