methodology
what we use, what we don't, and the caveats that matter.
where the data comes from
for new york city we query the open parking and camera violations dataset published by the nyc department of finance through the city's open-data portal. this is the same public record the city itself publishes for transparency.
update cadence
live plate lookups query the dataset on demand and cache results for 24 hours. the leaderboard refreshes once per day via a scheduled job.
how the rank is computed
we count violations per plate across the data window, then assign standard competition ranking: plates tied at the same violation count share a rank, and the next distinct count skips by the size of the tie group. rank #1 is the most-ticketed plate.
what's missing
- ghost plates and defaced plates underreport. nyc speed cameras failed to ticket roughly 22% of offending vehicles in early 2023 due to obscured plates.
- dismissed or overturned violations may still appear in the dataset.
- out-of-state plates are tracked but their rankings may be incomplete because we only see their nyc activity.
- plates change hands. this record is about the plate, not the current owner.
privacy
- no user accounts. nothing to log in to.
- we don't store plate searches.
- we don't link plates to names, addresses, or identities.
- rate-limited at 10 lookups per minute per ip to prevent bulk scraping.
legal
this is publicly-available open data published by city governments. we link to the official portals for any disputes or payment. using this data for harassment, stalking, or commercial resale violates our terms.
if you believe a record should be removed, file a takedown request through the underlying open-data portal — that is the system of record, and any correction propagates here on the next refresh.