State highways COVID-19 Transportation System Reporting
As of July 31, 2022, we are no longer updating the COVID-19 dashboard but will keep it available for the time being as an archive for travel information and data collected during the pandemic.
On this page:
Measures showing the effect of COVID-19 on the State Highway System- Analyses of both State Highway volumes and speeds
Effect of COVID-19 on the State Highway System
For more information about Statewide Traffic, please visit WSDOT Traffic.
Source: WSDOT Transportation Safety and Systems Analysis Division and WSDOT TRACFLOW (https://tracflow.wsdot.wa.gov/)
Note: Baseline is defined as volume number from the same weekday of the same month from the baseline year*. For example, Wednesday, April 3, 2019 would serve as the baseline for comparing the volume data from Wednesday, April, 1, 2020. *Baseline year is defined as March 2019 to Feb 2020. The dramatic increase shown for Thursday, July 2, 2020 is because the comparison day aligns with Thursday, July 4, 2019 and the holiday travel associated with that date. The increase shown for Wednesday, December 22, 2020 is because the comparison day aligns with Wednesday, December 24, 2019 and the holiday travel pattern associated with that date.
Source: WSDOT Transportation Safety and Systems Analysis Division and WSDOT TRACFLOW (https://tracflow.wsdot.wa.gov/)
Note: Baseline is defined as speed data from the same weekday of the same month from the baseline year*. For example, Wednesday, April 3, 2019 would serve as the baseline for comparing the speed data from Wednesday, April, 1, 2020. *Baseline year is defined as March 2019 to Feb 2020.
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