Skip to Content
Streetsblog New York City home
Streetsblog New York City home
Log In
London

The Heart of London Adopts 20 MPH Speed Limit

Image: ##http://cyclelondoncity.blogspot.com/2013/09/city-of-london-votes-near-unanimously.html##Cyclists in the City##

The City of London, the square mile in the heart of Greater London that is home to the city's finance sector, is resetting the speed limit to 20 miles per hour on all streets.

In New York, this would be the equivalent of, say, lowering the speed limit in Manhattan south of the Brooklyn Bridge -- not exactly earth-shattering, but noteworthy for a number of reasons.

Cyclists accounted for 47 percent of all road fatalities in the City of London in 2011. Other 20 mph zones in London have seen injuries and fatalities drop by nearly half. A person struck by a vehicle traveling at 20 mph has a 95 percent chance of surviving the collision.

All other surrounding boroughs (the equivalent of City Council districts) have already adopted a 20 mph limit -- eight of Greater London's 32 boroughs have lowered speeds or are considering doing so, according to the 20's Plenty for Us campaign, suggesting a domino effect. Finally, police support the change, and have called for additional speed cameras and other resources as needed.

"The City of London joins Paris and Tokyo in recognizing that 20 mph limits are better for business and health," said Jeremy Leach, 20’s Plenty for Us London coordinator, in a statement.

There is high demand for 20 mph "slow zones" in NYC neighborhoods where locals live in fear of reckless drivers. Speeding was the leading cause of traffic deaths last year, and speed enforcement is virtually non-existent.

Bill de Blasio has called for more slow zones, and says he wants to dramatically reduce traffic deaths and injuries. Neither Bill Thompson nor Joe Lhota has a detailed traffic safety platform. No candidate has suggested lowering the speed limit to 20 mph on a broad scale, though City Council transportation chair James Vacca has endorsed the idea.

Stay in touch

Sign up for our free newsletter

More from Streetsblog New York City

Grab a Shovel: Mayor Mamdani Begins Fix of Williamsburg Bridge Shitshow

Hizzoner gets his hands dirty to make a quick fix, with more to come.

January 6, 2026

How Kathy Hochul Learned to Stop Worrying and Love Congestion Pricing

She loved, then hated, then loved, then gutted, and, yesterday, celebrated the congestion pricing toll as it marked its first birthday.

January 6, 2026

Illegally Parked Cars Delayed FDNY Response to Five-Alarm Fire

First responders call out scofflaws blocking hydrants for delaying the response to a five alarm fire in the Bronx.

January 6, 2026

Tuesday’s Headlines: Standing Up for Congestion Pricing Edition

Whaddya know — we now have a mayor who openly supports congestion pricing. Plus other news.

January 6, 2026

Mamdani: Daylighting Before Death!

The mayor wants the Department of Transportation to add daylighting before someone has been killed rather than wait to ban parking at intersections after a completely avoidable tragedy.

January 5, 2026

How Congestion Pricing Proved the Haters Wrong and Is Changing New York for the Better

Happy birthday to the toll cameras! Congestion pricing is working as promised — defying haters and doubters, including President Trump. Here's why.

January 5, 2026
See all posts