Calgary Airport Noise Exposure Forecast Contour Boundaries

Noise Exposure Forecast contours serve as a legal development constraint for properties near Calgary International Airport, referenced by Section 19 of the Land Use Bylaw. The dataset outlines the boundaries of these NEF contours for the Airport Vicinity Protection Area. It is provided by data.calgary.ca and was last updated in April 2026.

Use Cases

• Identify properties within specific noise exposure levels using the `DBLEVEL` column for regulatory compliance checks.
• Perform spatial joins with parcel data using the `multipolygon` geometry to map development-constrained areas.
• Analyze the geographic extent of different `DBLEVEL` zones to model population or infrastructure exposure to airport noise.
• Support legal and zoning analysis by visualizing the `multipolygon` boundaries referenced in the Calgary International Airport Zoning Regulations.

Strengths

• Data is directly tied to active municipal bylaws and regulations, ensuring legal relevance.
• Provides machine-readable geospatial `multipolygon` data for GIS analysis.

Limitations

• Dataset size, row count, and specific temporal coverage are unknown.
• Lacks detailed metadata on the methodology used to generate the contour `DBLEVEL` values.

Provenance

Source

data.calgary.ca, the open data portal for the City of Calgary.

Collection Method

Likely derived from official airport noise modeling and regulatory mapping processes.

Freshness

Last updated April 2026, indicating recent maintenance.

Geography

Calgary International Airport vicinity, Calgary, Alberta, Canada.