New research looks at how much New Jersey could save through smarter road investments

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Earlier this year, Smart Growth America released a new model for analyzing the fiscal implications of development patterns. Since then we’ve analyzed development in Madison, WI, West Des Moines, IA, and Macon, GA.

For the latest installment, Smart Growth America teamed up with New Jersey Future to find out how much state, county and municipal governments in New Jersey could save on road maintenance bills by building in more compact ways.

The Fiscal Implications of Development Patterns: Roads in New Jersey analyzes population and employment density to understand just how much money could be saved if the distribution of New Jersey’s population and jobs could be made even incrementally more dense and compact.

Researchers at Smart Growth America and New Jersey Future took two distinct but related approaches to these questions. Smart Growth America partitioned the whole state into grid cells of equal size and then compiled data for each cell. Using U.S. Census data regarding population and employment, and the New Jersey Department of Transportation’s database of road segments, Smart Growth America’s researchers calculated the relationship between density and the road area per capita.

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In Macon, GA, smart growth would mean quadruple returns

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Actually, more than quadruple. It would generate 4.7 times the fiscal impact as development on the edge of town.

Back in April, we released a new model for analyzing the fiscal implications of development patterns. Since then we’ve analyzed development in Madison, WI and West Des Moines, IA.

Now, Macon, GA is the most recent city in which we’ve applied our model.

We looked at four scenarios of how Macon could grow over the next 20 years, and what each scenario would mean for the city’s finances. Our research found that development on the edge of town would generate about $165,000 for the city each year. The same development, if located downtown, would generate at least $428,000 per year for the city—and potentially as much as $788,000 per year if walkable places’ higher property values were factored in.

These results are similar to those from Madison and West Des Moines: building in compact, more walkable ways benefit a city’s bottom line. These strategies reduce the cost of infrastructure and services, while also generating more tax revenue per acre. The only question is, how much would your city gain with a smart growth approach?

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