Calgary Major Road Network Attributes and Geometry

A digital graphical representation of major roads within Calgary provides detailed attributes for each segment. The dataset includes 30 columns covering road status, surface type, ownership, addressing, and geometry. It is maintained by data.calgary.ca and was last updated in April 2026.

Use Cases

• Analyze road surface types (SURFACE, SUBCLASS_SURFACE_TYPE) for maintenance prioritization and budget planning.
• Model traffic flow and routing by integrating one-way designations (ONE_WAY) and address ranges (LEFT_FROM_ADDR, RIGHT_TO_ADDR).
• Assess municipal asset ownership (OWNERSHIP, ASSET_OWNERSHIP) for jurisdictional and maintenance responsibility mapping.
• Track infrastructure changes over time using modification timestamps (MODIFIED_ATTRIBUTE_DT, MODIFIED_GEOMETRY_DT).
• Perform spatial analysis (the_geom) to calculate road density, connectivity, and proximity to other urban features.

Strengths

• Contains 30 detailed attributes per road segment for granular analysis.
• Includes both spatial geometry (the_geom) and administrative metadata for comprehensive records.
• Features timestamps for attribute and geometry modifications to track changes.

Limitations

• Unknown total row count prevents assessment of network completeness.
• Sample data unavailable to verify data quality and null value prevalence.
• Geographic scope is limited solely to the city of Calgary.

Provenance

Source

data.calgary.ca

Collection Method

Digital graphical representation; specific acquisition technique (AQUISITION_TECHNIQUE) column suggests varied methods.

Time Range

null

Freshness

Updated in April 2026, indicating recent maintenance.

Geography

City of Calgary, Alberta, Canada.