Seattle, WA Urbanized Area Congestion Report
In the line graphs below, FHWA uses Data Collection Year instead of Data Reporting Year to represent snapshot condition/performance at the time the data was collected. More information
The Seattle, WA Urbanized Area covers parts of Washington. Targets are agreed upon by several transportation agencies and apply to the entire area.
Annual Hours of Peak-Hour Excessive Delay (PHED) Per Capita
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Annual Hours of Peak-Hour Excessive Delay (PHED) Per Capita 2021 2022 2023 2024 2025 Condition/Performance 18.9 -- -- -- -- Targets -- -- 28.0 -- 28.0
Annual Hours of Peak-Hour Excessive Delay (PHED) Per Capita
- Basis for Targets
- 2-yr Progress
- Basis for 4-yr Target Adjustment
- 4-yr Planned Activities
- 4-yr Progress
(Washington) PSRC and WSDOT employed the Texas Transportation Institute methodology for setting PHED target as it was independent of the COVID data. This methodology suggests to hold the 4-yr target from the first four-year cycle (2018-2021) the same for second four-year cycle (2022-2025) 2- & 4-year targets. Involved agencies will re-evaluate the targets during the 2023 mid performance period to adjust the 4-yr target.
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Data Sources:
Washington 2022 Biennial Performance Report
Washington 2022 HPMS Data Submittal
Non-Single Occupancy Vehicle (Non-SOV) Travel
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Non-Single Occupancy Vehicle (Non-SOV) Travel 2021 2022 2023 2024 2025 Condition/Performance 36.4 -- -- -- -- Targets -- -- 35.5 -- 36.8
Non-Single Occupancy Vehicle (Non-SOV) Travel
- Basis for Targets
- 2-yr Progress
- Basis for 4-yr Target Adjustment
- 4-yr Planned Activities
- 4-yr Progress
(Washington) PSRC and WSDOT used the historical trend data from the ACS for the target-setting process regarding the percent of Non-SOV travel. The target-setting method has considered only the pre-COVID data (2017-2019 trend) as the COVID data (2020-2021 trend) was unavailable. The compound annual growth rate from the 2017-2019 period was applied to the 2021 baseline data to forecast future performance and set the 2-year and 4-year targets.
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Data Sources:
Washington 2022 Biennial Performance Report
Washington 2022 HPMS Data Submittal