Skip to Content
Streetsblog New York City home
Log In
Bicycling

Streetfilms: Timing Streets for Cyclists, Pedestrians, and Everyone Else

11:58 AM EST on February 2, 2009

From the new San Francisco branch of Streetfilms, Janel Sterbentz takes a look at one of the city's main bicycle routes -- Valencia Street -- and asks how it would function if signals were timed to give cyclists the "Green Wave" instead of cars. Cyclists would get a smoother ride and feel less compelled to roll through red lights. Pedestrians would benefit from slower vehicle speeds and more predictable cyclist behavior. As for transit vehicles, Janel reports, average travel times for trams and buses have improved on Amsterdam streets with a cyclist green wave. Even motorists, it turns out, should be rooting this on:

While naysayers may object that this will increase trafficcongestion, it is more than reasonable to counter that real-timetraffic conditions on Valencia Street have already slowed to a generalrange of 8 to 20 mph. It makes logical sense that retiming trafficsignals for actual traffic speeds would increase traffic flow, reduceidling, and minimize stop-and-go movements, thus decreasing pollution.

Portland, Oregon has already realized this and implemented a citywide traffic signal optimization project,which saves motorists over 1,750,000 gallons of gas and 15,460 tons ofCO2 each year. It cost $533,000, which was paid for by the Climate Trust of Oregon carbon offset program. In downtown Portland nearly every street is timed for 12 mph, making these streets de facto Green Waves.

Despite data from its own models that suggest drivers on Valencia Street would reap similar efficiencies from slower signal timing, the San Francisco MTA refuses to fund a pilot study. In New York, we could see cyclist green waves bringing a more civilized pace to numerous avenues that currently function as speedways, but let's get specific. Tell us which New York City corridors are outright begging for bike-centric signal timing.

Stay in touch

Sign up for our free newsletter

More from Streetsblog New York City

Popular Fort Greene Open Street Fizzles After City Pulls Support

DOT reassigned its contractor, and this open street — which once hosted rollicking dance parties — is history.

October 2, 2023

Monday’s Headlines: Thin-Skinned, Anti-Restler Mayor Edition

Under fire for how he handled the storm, the mayor found a familiar target: Brooklyn Council Member Lincoln Restler. Plus other news.

October 2, 2023

Two Paths Forward: Broadway Shows What Could Be on Fifth Avenue

It's time to widen Fifth Avenue's sidewalks and add a protected bike lane. Delays hurt everyone.

CYCLE OF RAGE: Even Cheap Souvenir Plates Fool NYC Speed Cameras — And Piss Off an Out-of-Town Man

You don't have to be SEXY to fool New York City speed cameras. You just have to pretend to be.

October 2, 2023

We Have the ‘End of Days’ Flooding Pics You Need Right Now

It's bad out there. How bad? Here is a citywide roundup from our staff ... and our friends on social media.

September 29, 2023
See all posts