Revision Note: Please note that this dataset has been revised and is available from the Land Information Ontario (LIO) Warehouse.

The Ontario Road Network (ORN) is a province-wide geographic database of over 250,000 kilometers of municipal roads, provincial highways, and resource and recreation roads. The ORN is considered the authoritative source of roads data for Ontario.

Ontario's Road Network Road Net Element contains road element and ferry connection geometry and attributes describing the characteristics of the road network, e.g. its street name or road number, its address information, road classification, etc.

Road Elements are the basic centreline road features spanning from intersection to intersection, or intersection to end where there is no subsequent intersection with another road. Ferry Connections are an approximation of the route a ferry travels to transport vehicles across water and are linked to a road element by a junction.

Point events occur at specific (x, y) co-ordinate locations along the road network and include:

• Junction (Defined at each end of the road element)
• Tollbooths (Physical, Hybrid or Virtual)
• Blocked Passages (Permanent or Removable)
• Crossings (Railway, Crosswalk, or Culvert)
• Reference Points (Milepost, Collision or Other)

Linear events occur between two fixed (x, y) locations and include:

• Pavement Status (Paved or Unpaved)
• Number of Lanes
• National Road Class
• Street Name
• Addressing Information
• Jurisdiction
• Speed Restrictions
• Road Restrictions
• Structures (Bridges, Dams or Tunnels)

Supplementary tables can be used and are available for download from the additional documentation section. Supplementary look-up table descriptions are available in the data description document, which is available for download from the additional documentation section.