Dayton in context: Street-network sprawl trends

Dayton in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
DaytonOhio (Region)United States (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dayton plotted against Ohio and United States. The SNDi of new construction in Dayton followed a zig-zag trend with an overall increase, compared to Ohio which rose steadily and United States which peaked in 1991-2005. Most recently, Dayton's incremental SNDi rose from 2.94 to 3.82 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dayton ranked 2nd out of 11 cities in Ohio and 20th out of 333 in United States as of 2020.

New Street Additions (2006–2020)

SNDi value
3.82
Rank in United States
121st of 333
Rank in Ohio
5th of 11

Entire Network (Aggregate)

SNDi value
1.85
Rank in United States
20th of 333
Rank in Ohio
2nd of 11

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
DaytonAraguainaGudivada

In new street additions, Dayton and Araguaína both fluctuated in its street-construction patterns, while Gudivada built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Dayton and Araguaína have been converging in their street-network character since 1975.