Walsh will use new law to lower city’s default speed limit

Using authority granted under a law just signed by Gov. Charlie Baker, Boston Mayor Martin Walsh plans to work with the city council to lower the default speed limit in Boston from 30 miles per hour to 25 miles per hour.
"We know that lower speed limits are an important tool in reducing fatal and serious crashes and creating safer streets for people of all ages and abilities who are walking, driving, and bicycling," Walsh said in a statement. "A lower speed limit in Boston would be a major early accomplishment for our Vision Zero goal: bringing the number of traffic deaths and serious injuries to zero by 2030."