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State highways COVID-19 Transportation System Reporting

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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 year 2019. For example, Wednesday, April 3, 2019 would serve as the baseline for comparing the volume data from Wednesday, April, 1, 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.


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 year 2019. For example, Wednesday, April 3, 2019 would serve as the baseline for comparing the volume data from Wednesday, April, 1, 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.

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