Across 23,886 crash reports in the Chattanooga Traffic Crashes dataset, covering 1 July 2024 through 25 September 2026, 5,127 crashes — 21.5% — are flagged as hit-and-run. Of those, 512 carry a solved flag: 10.0%.

The hit-and-run share is steady in every month of the window, ranging only between 18.7% and 25.0%, so this is a standing condition rather than a recent shift.

The solve rate does not improve as a case gets older. Grouping hit-and-run crashes by how long ago they occurred: 9.6% solved among those 0-5 months old, 10.0% at 6-11 months, 10.0% at 12-17 months, 10.1% at 18-23 months, and 10.6% at 24 months or more. Whatever resolution occurs, occurs early; older cases are not closing at a higher rate than fresh ones.

Hit-and-run crashes are also somewhat more likely to involve someone outside a vehicle. At least one non-motorist (pedestrian or cyclist) was involved in 106 of 5,127 hit-and-run crashes (2.07%) versus 282 of 18,759 other crashes (1.50%) — a 1.38x difference, larger than would be expected by chance at conventional thresholds. This is a co-occurrence in the crash records and does not establish that fleeing is caused by who was struck.

One caution on reading these records: reported injuries per crash are LOWER in hit-and-run rows (0.100 versus 0.313). That is consistent with the fleeing driver and their own occupants never being counted, and should not be read as hit-and-run crashes being less harmful.