Skip to Content
Streetsblog USA home
Streetsblog USA home
Log In
Boston

Boston Wants to Lower Its Speed Limit to 20 MPH — But Can’t

Twenty is plenty in Boston, according to its elected officials. The City Council voted unanimously this week to lower the default speed limit on most residential streets to 20 mph -- and not for the first time.

By Boston at English Wikipedia, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=10540340
Photo: John Stephen Dwyer/Wikipedia
By Boston at English Wikipedia, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=10540340

Speeding is the number one complaint council members hear from residents. And on Boston's narrow streets, packed with pedestrians, driving 40 mph -- as people regularly do -- is especially dangerous.

The current speed limit is 30 mph, and, unfortunately, changing it isn't as easy as passing a City Council rule. The state of Massachusetts sets default speed limits, and when Boston tried to lower its speed limit before, state law prevailed.

"In the past the state has been reticent to change the prevailing speed limit because of the way it would affect so many towns," says Walk Boston's Brendan Kearney. "Potentially every single little city or town would have a different speed limit."

Jackie DeWolfe at Livable Streets Boston says advocates are hopeful this time will be different, but it won't be easy.

Boston launched a Vision Zero task force last year, and that is raising awareness of the speeding problem. One encouraging sign of progress was that during this round of City Council discussions, Boston Police testified in support of lowering the speed limit.

"It’s a really important symbolic thing that can be done to tell residents and visitors the kind of community we’re trying to create here" said DeWolfe told Streetsblog.

State Representative Denise Provost, of Somerville, says winning statewide approval for such a change is a difficult political task. She's tried unsuccessfully in previous sessions to pass legislation enabling cities to lower speed limits.

Provost said it's probably too late for a bill authorizing Boston to lower its speed limit to pass before the legislative session ends in July.

Perhaps a revised approach may help, she says. Provost was inspired by New York City's successful bid to lower its default speed limit to 25 miles per hour, which also required state approval. She said perhaps if a handful of Boston-area cities, like Boston, Somerville and Cambridge, sought a combined regional speed limit, they might prevail.

"If they could agree on an urban core speed limit then maybe we could get this legislature to do what [New York] did," she said. "The regional approach is a way that has not been tried yet, but it will need the agreement of probably at least three municipalities"

Stay in touch

Sign up for our free newsletter

More from Streetsblog USA

Monday’s Headlines Wonder About E-Bikes’ Future

E-bike sales surged in 2020 and 2021 but have been flat ever since.

January 19, 2026

Friday Video: How ‘Car Brain’ Warps the Way We See the World

How can we fix the brains distorted by car culture?

January 16, 2026

Friday’s Headlines Are the Best

People for Bikes named its top bike lane projects of the past year.

January 16, 2026

Talking Headways Podcast: The Lost Subways of North America

Author Jake Berman discusses transit histories through the lens of racial dynamics, monopolies, ballot measures and overlooked cities.

January 15, 2026

A ‘Demographic Time Bomb’ Is About To Go Off — And the Transportation Sector Isn’t Ready

A top firm is warning that the "silver tsunami" will have big implications for the climate, unless U.S. communities act fast.

January 15, 2026

Thursday’s Headlines Shoot for the Moon

What if the U.S. spent anything near what it spends on highways on transit instead?

January 15, 2026
See all posts