Ride Quality Scorecard

Share of measured road miles in Good, Fair and Poor condition by IRI · HPMS 2024

Good Fair Poor No IRI reading

Updating the map

Loading the road map

Crunching 1.4 million road segments in your browser

0%Good

0%Poor

0Miles measured

Good, Fair and Poor by state

Good, IRI < 95 Fair, 95 to 170 Poor, > 170 Click one or more to filter the map

By road class, all states

1.4 millionsegments loaded and queried in your browser

Read straight from 4 Parquet files (330 MB). No feature service, no tile cache.

0 drawn on the map at this zoom.

Scores use miles with an IRI reading, mostly Interstates and arterials. IRI is ride quality only; FHWA's full rating adds cracking and rutting. Source: FHWA HPMS 2024.