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.