Explore dashboards and download datasets about vehicle accidents using the Department of Transportation's Interactive Mapping Portal for Analysis and Crash Tracking (IMPACT). These data are based on crash reports submitted by state and local police departments.
Division of Local Services, Massachusetts Department of Revenue
See data about how many miles of road are in each Massachusetts municipality, including what the types of road (e.g. highways, roads through state parks, etc.) Data spans 2004 through present day. This data is hosted on a website managed by the Division of Local Services.