The following table contains links to maps of speed limits on Massachusetts roads. The source data are (1) the MassHighway GIS road database, (2) speed regulations obtained from MassHighway, (3) observations by John Carr. These maps do not show roads functionally classified as "local streets" (as opposed to arterials or collectors).

Unlike most states, Massachusetts makes a significiant distinction between posted and unposted speed limits so unposted roads are not assigned a speed limit color code.

Grid of speed limit maps
3478122156210254298
945 Haverhill
899 Pittsfield Greenfield Athol Fitchburg north Gloucester
861 Stockbridge Springfield Sturbridge Worcester Boston Scituate Provincetown
815 Taunton Plymouth Cape Cod
777 Dartmouth Vineyard Nantucket