Signal Priority in N.Y.C. to Make Streets Safer for Cyclists

New York City will create green waves by adjusting traffic signals to keep cyclists moving, even when drivers will have to slow down.

1 minute read

November 6, 2019, 5:00 AM PST

By Camille Fink


New York Biking

Prayitno / Flickr

Winnie Hu reports on plans in New York City to retime traffic signals to give cyclists priority. The strategy will recalibrate signals for cyclists, who travel about 10 to 15 miles per hour, by giving them a series of green lights and stopping drivers traveling above 15 miles per hour.

"New York’s experiment with what has been called a green wave is part of a global movement to make urban streets more welcoming to bikes, even as the country’s streets have become more dangerous," writes Hu. With a green wave system in place, traffic also runs more smoothly and the potential for crashes decreases as cyclists and motorists stop speeding up to try to beat red lights.

Copenhagen was the first city to adapt the concept of the green wave for biking. In the United States, traffic signals have been adjusted on streets in San Francisco, Chicago, and Portland, Oregon. New York City had implemented a green wave on a small segment of a Brooklyn roadway and plans to expand it to other streets in Brooklyn, Manhattan, and Queens.

Wednesday, October 23, 2019 in The New York Times

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Wastewater pouring out from a pipe.

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage

Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

April 13, 2025 - Inside Climate News

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 16, 2025 - Diana Ionescu

Blue and white Seattle Link light rail train exiting concrete Downtown Bellevue Tunnel in Bellevue, WA.

Why Should We Subsidize Public Transportation?

Many public transit agencies face financial stress due to rising costs, declining fare revenue, and declining subsidies. Transit advocates must provide a strong business case for increasing public transit funding.

April 7, 2025 - Todd Litman

Two people on bikes in red painted bike lane with bus in traffic lane next to them.

Understanding Road Diets

An explainer from Momentum highlights the advantages of reducing vehicle lanes in favor of more bike, transit, and pedestrian infrastructure.

5 hours ago - Momentum Magazine

Aerial view of large warehouses across from development of suburban single-family homes in Jurupa, California with desert mountains in background.

New California Law Regulates Warehouse Pollution

A new law tightens building and emissions regulations for large distribution warehouses to mitigate air pollution and traffic in surrounding communities.

6 hours ago - Black Voice News

Purple Phoenix light rail train connected to overhead wires at sunset.

Phoenix Announces Opening Date for Light Rail Extension

The South Central extension will connect South Phoenix to downtown and other major hubs starting on June 7.

7 hours ago - Arizona Republic