{"schemaVersion":"1.0","id":"collisions-over-time","dataset":"collision-trend","title":"Five years of collisions","description":"Fatal, serious and slight, held apart so the serious ones stay visible.","methodology":"London police-reported personal-injury collisions by severity in the latest five-year DfT STATS19 files. Series remain separate because slight collisions vastly outnumber fatal collisions. Publisher provisional status is retained rather than silently mixed with validated annual data.","category":"transport","categoryLabel":"Transport","cadence":"annual","placeholder":false,"landingPage":"https://londongraph.com/g/collisions-over-time","markdown":"https://londongraph.com/g/collisions-over-time/index.html.md","source":{"name":"Department for Transport","url":"https://www.gov.uk/government/statistical-data-sets/road-safety-open-data","licence":"Open Government Licence v3.0","licenceUrl":"https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/"},"updatedAt":"2026-10-06T06:32:33.462Z","release":{"label":"2021–2025 STATS19","publishedAt":"2025-12-31T00:00:00.000Z","resourceUrl":"https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-collision-last-5-years.csv","methodologyUrl":"https://www.gov.uk/government/statistical-data-sets/road-safety-open-data","sha256":"06a03c0e5504175e23ed98e3e0b4767ac61d396c073405a1bddab9339c18f948"},"observations":[{"series":"fatal","buckets":["2021","2022","2023","2024","2025"],"values":[112,142,136,147,116],"unit":"collisions","metadata":[{},{},{},{},{}]},{"series":"serious","buckets":["2021","2022","2023","2024","2025"],"values":[4056,4393,4215,4176,4508],"unit":"collisions","metadata":[{},{},{},{},{}]},{"series":"slight","buckets":["2021","2022","2023","2024","2025"],"values":[22054,22318,21952,19699,19371],"unit":"collisions","metadata":[{},{},{},{},{}]}],"areaStatistics":null,"visualizations":[{"id":"overview","label":"Trend","description":"Fatal, serious and slight, held apart so the serious ones stay visible.","url":"https://londongraph.com/g/collisions-over-time","renderer":"primary","default":true,"timeControl":"inherit","datasets":[],"transform":null,"controls":null,"metrics":[],"caveat":null},{"id":"change","label":"Change","description":"Show the change from each preceding published period.","url":"https://londongraph.com/g/collisions-over-time?view=change","renderer":"delta","default":false,"timeControl":"inherit","datasets":[],"transform":null,"controls":null,"metrics":[],"caveat":null},{"id":"share","label":"Share over time","description":"Normalize each period to show how the mix changes.","url":"https://londongraph.com/g/collisions-over-time?view=share","renderer":"share-trend","default":false,"timeControl":"inherit","datasets":[],"transform":null,"controls":null,"metrics":[],"caveat":null}],"availability":"observations","note":"The release is complete for the measures represented on the graph page."}