On March 21, 2016, the Cambridge City Council unanimously adopted Vision Zero. The City formed a Vision Zero Advisory Committee that includes Cambridge residents as well as representatives of local advocacy groups.

A group of people, led by a police officer, bike along the side of a road that has many parked cars. Behind the group of people on bikes is a double-decker tour bus.


  • The City released its Vision Zero Action Plan in February 2018. 
  • In July 2017, a two-way separated bike facility was installed on Brattle Street from Eliot Street to Mason Street and a one-way separated facility was installed on Mass Ave. between Trowbridge Street and Quincy Street.
  • Cambridge also installed designated bikes lanes on Massachusetts Avenue between Beech Street and Route 16.
  • The City has implemented a number of short-term improvements in Inman Square, such as updating markings on pavements and traffic signs to make intersections safer.
  • Cambridge has reduced the speed limit on most city-owned streets to 20 mph.
A crosswalk intersects a bike lane on a street at night. A sign indicates that people biking should yield to pedestrians.


The City's roll-out of safety infrastructure has caused some contention around the public process. Local business owners and residents have criticized the City’s rush and said that there was not enough outreach done before the decisions were made. As Cambridge moves forward, it will be important for the Transportation Department and City leaders to focus on developing their education, outreach, and communication strategies around Vision Zero.

A view of Porter Square showing complicated intersections, a sidewalk area with trees and pedestrians, and the corner of a CVS.

What's Next

  • Safety improvements will be implemented Inner Mt. Auburn, Main St (eastbound), and Ames St (Main to Memorial Drive) in FY20.
  • The City plans to update their Vision Zero Action Plan to reflect the progress achieved and set new goals and timelines.

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