States
Largest net additions
A full 30-day window is not available
Historical tracking has 0 complete days so far. No earlier values are invented.
30-day source change
Fastest-growing documented ALPR footprints
This ranking stays empty until PlateReaderMap has a complete 30-day comparison window. Additions describe new source records, not independently verified installations.
Cities
Qualified local changes
A full 30-day window is not available
City rankings also require a meaningful prior count and the normal page-quality threshold.
Guardrails against misleading percentages
Places with fewer than ten estimated records at the start of the window are excluded from this initial ranking. Results are ordered by net absolute change. A move from one record to three therefore does not outrank a much larger, well-documented change solely because it represents 200% growth.