The Impact of Road Widening on the Local Economy

By Dom Nozzi

For nearly a century, road widening has been touted as a powerful stimulus for the local economy.

However, by striking contrast, I have learned the opposite.

One of the most important lessons I have learned in my many years as a city planner is that quality of life is a powerful economic engine, and that the “habitat” intended to make cars happy is, conversely, one of the most powerful ways that quality of life in a community is damaged.

Road widening, as my book Road to Ruin illustrates, is the best invention humans have come up with (short of aerial carpet bombing) to destroy community quality of life. Widening a road inevitably creates a “For Cars Only” ambience. It creates a “car habitat” that screams “CARS ARE WELCOME. PEOPLE ARE NOT.”

The car habitat makes for a world that repels humans. Huge asphalt parking lots. High-speed highways. Sterile dead monstor hwyzones which form “gap tooth” tears in the fabric of a town center. Large amounts of air and noise pollution. Awful levels of visual “Anywhere USA” blight. Worsened safety — for pedestrians, bicyclists and transit users, that is.

And worst of all, because a person in a car consumes, on average, about 19 times as much space as a person sitting in a chair, places designed for cars lose the comfortable, compact, enclosed, charming, human-scaled, vibrancy-inducing spacing and place-making that so many people love to experience.

As David Mohney once said, the first task of the urbanist is controlling size.

One consequence of this worsening quality of life that comes from widening a road to improve conditions for cars: The quality of the public realm worsens to the point where American society is noted for growing levels of retreating from the public realm and a flight to the cocooning private realm.

Given this, road widening and the substantial increase in auto dependency that the widening induces sends the quality of life of a community into a downward spiral. And that, in my opinion, is toxic to the economic health of a community.

Note that road widening inherently creates increased auto dependency because big, high-speed, “happy car” roads create what economists call a “barrier effect.” That is, big and high-speed roads make it more difficult to travel by bicycle, walking or transit. So wider roads recruit new motorists in a vicious, never-ending cycle of widening, more car dependence, more congestion, more calls for widening, etc.

The end result?

Houston, Jacksonville, Detroit, Newark, Buffalo, Cleveland.

As Richard Florida powerfully argues in The Rise of the Creative Class, the centerpiece of successful community economic development is recognizing that instead of following the conventional model of drawing businesses by lowering business costs and relaxing regulations, quality of life should be enhanced to attract and retain quality “creative class” employees. It is not a coincidence that Florida describes this form of quality of life as one which includes walkable, vibrant, 24/7 vibrancy (where the car is subservient to the needs of people).

It is also no coincidence that Boulder, Colorado – where I now live – is ranked, over and over again, as the city ranked first in a long list of quality of life measures. Therefore, despite the fact that Boulder assesses relatively high costs on businesses, applies relatively aggressive regulations on businesses (measures traditionally assumed to be toxic to economic health), the Boulder economy is consistently quite healthy. Even in times of national economic woes.

One awful tragedy for the State of Florida is that the 1985 Growth Management law adopted by that state enshrined Community Design for Happy Cars by requiring that future development be “concurrent” with adopted road standards. That is, new development must not be allowed to “degrade” adopted community “free-flowing traffic” standards. In other words, the state requires, under the rubric of “growth management,” that all local governments must be designed to facilitate car travel (too often doing so by widening a road). The apparent thinking is that “free-flowing traffic” is a lynchpin for community quality of life. The be-all and end-all. In my opinion, nothing can be further from the truth.

It is a law that locks communities into harming its quality of life.

Another telling piece of information about economics: About 100 years ago, households spent approximately 1-2 percent of their income on transportation. Today, about 20-22 percent of the household budget goes to transportation. Transportation costs have, in other words, been privatized, to the great detriment of the economics of households.

In sum, widening roads, drains dollars from a community as the purchase of car-based goods and services (cars, oil, gas, car parts, etc.) largely leave the community, rather than being recycled within the community. Because the “car habitat” and the “people habitat” clash, quality of life is significantly degraded when the community is designed to facilitate cars (by widening roads, most infamously). And that, as Richard Florida clearly shows, undercuts future prospects for community economic health. Finally, household expenses are severely undermined as the growing (and extremely costly) car dependency leads to a declining ability to afford other household expenses.

The key is not so much to “get rid of cars” as to avoid overly pampering them (through such things as underpriced [untolled] roads, free parking and subsidized gasoline) in the design of our community. Doing so quickly leads to the car dominating and degrading our world. Destroying our economic health and quality of life. Cars must be our slaves rather than our masters. They should feel like intruders, rather than welcomed guests. Only then will the future of a community be sustainable and high quality.

It is time to return to the tradition of designing our communities to make people happy, not cars.


My book, The Car is the Enemy of the City (WalkableStreets, 2010), can be purchased here: Car is the Enemy book cover

50 Years Memoir CoverMy memoir can be purchased here: Paperback = Hardcover =

Visit my urban design website read more about what I have to say on those topics. You can also schedule me to give a speech in your community about transportation and congestion, land use development and sprawl, and improving quality of life.


Or email me at: dom[AT]

Visit my other sites:

My Adventures blog

Run for Your Life! Dom’s Dangerous Opinions blog

My Best-Ever Lists blog

My Town & Transportation Planning website

My Town & Transportation Planning blog

My Facebook profile

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Filed under Bicycling, Economics, Road Diet, Sprawl, Suburbia, Urban Design

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