We stopped reporting new data on Oct 15, 2022. All published data will remain publicly available.

Calibrate your region

Before you start working with the data, follow this checklist. Note your answers to the following questions about your region.

Did anything significant happen between Jan 3 and Feb 6, 2020?

Each day’s baseline is the median day-value from the 5-week period in January. Think about local events and seasonal changes that might bias the baseline:

  • Did your region experience a cold winter or a summer transitioning into fall?
  • Did public holidays fall on the same day of the week?
  • Do you have other data sources (such as road tolls, parking meters, or subway turnstiles) that you could help you determine the expected change?
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