Abilene in context: Street-network sprawl trends

Abilene in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Abilene plotted against Texas and United States. The SNDi of new construction in Abilene rose steadily, compared to Texas which rose steadily and United States which peaked in 1991-2005. Most recently, Abilene's incremental SNDi rose from 2.72 to 2.96 between 1991-2005 and 2006-2020. In terms of the aggregate network, Abilene ranked 4th out of 42 cities in Texas and 8th out of 333 in United States as of 2020.

New Street Additions (2006–2020)

SNDi value
2.96
Rank in United States
45th of 333
Rank in Texas
13th of 42

Entire Network (Aggregate)

SNDi value
1.67
Rank in United States
8th of 333
Rank in Texas
4th of 42

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
AbileneWariBohe

In new street additions, Abilene built increasingly disconnected streets over time, while Wari fluctuated in its street-construction patterns and Bohe built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Abilene became progressively more disconnected, while Wari fluctuated in connectivity and Bohe grew more disconnected from 1975 through 1976-1990, then improved.