[OC] Why has Boston police stopped policing cars? Civil traffic enforcement has collapsed between 2015 and 2024

Boston indexed trends, 2015–2024 (2015 = 100): civil traffic stops vs. sworn officers, population, and median traffic volume. Data sources. Civil traffic stops: MassDOT Driver Citation Data Portal, violation-level extracts for the City of Boston (2015–2024), filtered to civil (non-criminal) operator citations issued by the Boston Police Department on non-accident stops. https://drivercitationdata.dot.mass.gov/ Sworn officer counts: City of Boston [...]