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Monthly NHS Traffic Speed
U.S Department of Transportation
Updated Oct 25, 2026
About this dataset
This dataset reports the historical National Highway System 50th percentile median speeds for various roadway types, months, and vehicles on US roads.
Data and resources (3)
- CSV
Monthly NHS Traffic Speed
Modified Jul 25, 2026
- JSON
Monthly NHS Traffic Speed
Modified Jul 25, 2026
- XSL
Monthly NHS Traffic Speed
Modified Aug 25, 2026