Flickr

Yes, according to one new study.

We have long known that residents of smart-growth neighborhoods – those with central locations, walkable streets, nonsprawling densities, and a good mix of shops and amenities – drive significantly less than do residents of spread-out suburban subdivisions. But, writing in his blog hosted by Planetizen, Todd Litman reports on a new Arizona study that found that those attributes can reduce local congestion as well:

[The study] found that roadways in more compact, mixed, multi-modal communities tend to be less congested. This results from the lower vehicle trip generation, particularly for local errands, more walking and public transit travel, and because the more connected street networks offer more route options so traffic is less concentrated on a few urban arterials. This contradicts our earlier assumptions.

This is a little counter-intuitive, since many of us have had the experience of finding roadway traffic to be more congested as we drive from a less dense neighborhood to or through one with a greater concentration of development and uses. To some extent, this appears to be because of the presence of more stoplights and other traffic controls in higher-density areas in order to regulate vehicle traffic arriving at an intersection from multiple directions, and sometimes because of controls designed to increase safety for pedestrians. It is possible that, while drivers are experiencing substantially longer travel times through denser areas, it is due to the controls and not necessarily because traffic volume is higher.

I would like to see more research to tease out the precise factors that can make smart growth reduce congestion, because I don’t think it always does. The more we can learn about this, the more we can refine our understanding of how to make good, walkable development even better. The study, published by the Arizona Department of Transportation, certainly gives one hope. Read Todd’s full analysis here.

Photo credit: Oran Virincy/Flickr

This post originally appeared on the NRDC's Switchboard blog.

About the Author

Most Popular

  1. Environment

    Paris Wants to Grow ‘Urban Forests’ at Famous Landmarks

    The city plans to fill some small but treasured sites with trees—a climate strategy that may also change the way Paris frames its architectural heritage.

  2. Equity

    Berlin Will Freeze Rents for Five Years

    Local lawmakers agreed to one of Europe’s most radical rental laws, but it sets the stage for a battle with Germany’s national government.

  3. a photo of yellow vest protesters in Paris, France.
    Equity

    To Understand American Political Anger, Look to ‘Peripheral France’

    French geographer Christophe Guilluy has a controversial diagnosis of working-class resentment in the age of Trump, Brexit, and the Yellow Vests.

  4. Design

    How Birds and Bees Survive in the City

    Pollinators—the wildlife that shuffle pollen between flowers—are being decimated. But they may still thrive with enough help from urban humans.

  5. People standing in line with empty water jugs.
    Environment

    Cape Town’s ‘Day Zero’ Water Crisis, One Year Later

    In spring 2018, news of the water crisis in South Africa ricocheted around the world—then the story disappeared. So what happened?

×