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Live traffic and weather data from Roadway Weather Information System sites across Iowa. The data is updated every 5 minutes and is provided by the State of Iowa, with the last platform update recorded in April 2026. Invalid sensor readings, indicated by NA or 9999 values, are excluded from the service.
License is listed as 'other-license-specified'; specific terms must be reviewed before use. Data is served in multiple formats (CSV, XML, RDF, JSON), requiring format-specific parsing.