Detroit, MI 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 Detroit, MI Urbanized Area covers parts of Michigan. 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 9.8 -- -- -- -- Targets -- -- 18.0 -- 18.0
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
(Michigan) A three-year average of pre-pandemic PHED data (FY2017-2019) was developed and then increased by an additional 30 percent. This rounded to the 18-hour target that was set for this urbanized area. In addition, the MDOT five-year program includes a larger than normal investment with delivering the Rebuild Michigan Program and the potential for additional funding through the Bipartisan Infrastructure Law. Many of these projects will impact the Detroit urbanized area during this performance period. There is concern that such widespread construction in a short span of time will have a negative impact on PHED performance.
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Data Sources:
Michigan 2022 Biennial Performance Report
Michigan 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 18.7 -- -- -- -- Targets -- -- 15.5 -- 15.5
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
(Michigan) The data used to develop this target was pulled from the US Census Bureau’s American Community Survey. This data was used to analyze trends in the historical changes in the percent of non-SOV commuters over the past decade. Prior to the pandemic, the Detroit UZA had a relatively flat trend line for the percent non-SOV. Because of this, the target was set conservatively using the lowest percentage of non-SOV since 2010.
While this target is conservative in nature, it is still progress. the Detroit UZA is the only UZA in the state that is on its second performance cycle for this measure. This target is still 1.1% higher than the target that was set during the last performance cycle. Considering that Non-SOV percentage in the Detroit UZA only increased by 0.9% from 2010 to 2019, even this conservative target can be seen as being somewhat ambitious.
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Data Sources:
Michigan 2022 Biennial Performance Report
Michigan 2022 HPMS Data Submittal