Irving in context: Street-network sprawl trends
Irving in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Irving plotted against Texas and United States. While Texas and United States both peaked in 1991-2005, Irving's new street additions peaked in 1991-2005. Most recently, Irving's incremental SNDi fell from 3.52 to 3.36 between 1991-2005 and 2006-2020. In terms of the aggregate network, Irving ranked 18th out of 42 cities in Texas and 119th out of 333 in United States as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 3.36
- Rank in United States
- 70th of 333
- Rank in Texas
- 19th of 42
Entire Network (Aggregate)
- SNDi value
- 2.82
- Rank in United States
- 119th of 333
- Rank in Texas
- 18th of 42
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Irving built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Mellit built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Changling built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Irving became progressively more disconnected, while Mellit became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Changling became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Irving and Changling have been converging in their street-network character since 1975.