Click or tap anywhere on the map to read the estimated noise level.
Use noise data on your website →This public demo estimates outdoor environmental noise in Canadian cities. Mapped transport and site sources contribute sound energy, which is propagated and summed in a precomputed model. The result is an estimated A-weighted equivalent level (LAeq) on a roughly 15 m grid, for two periods: daytime (07:00–23:00, LAeq,16h) and nighttime (23:00–07:00, LAeq,8h).
Road emission uses a simplified, overall A-weighted formulation based on CNOSSOS-EU. Traffic flow, speed and heavy-vehicle share affect the level. Propagation is an approximation; this map is not a full implementation of the CNOSSOS-EU assessment method.
Compare with Toronto's measured and modelled noise study or Bruitparif's monitoring stations. A monitoring station measures its own location; continuous map colours are estimates between locations.
Do not interpret a precise map value as a measured reading, an indoor level or a guarantee for a property. Short peaks and individual events are outside these period averages.
The quiet score is a display scale from 50 to 100: 100 at 40 dB or less, 50 at 80 dB or more. It is not a percentile or a health rating. ≤ and ≥ mark display-range limits.
| City | OSM data | Median | ≥ 65 dB | Airports |
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