Davenport in context: Street-network sprawl trends
Davenport in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Davenport plotted against Iowa and United States. The SNDi of new construction in Davenport rose steadily, compared to Iowa which rose steadily and United States which peaked in 1991-2005. Most recently, Davenport's incremental SNDi rose from 4.2 to 4.43 between 1991-2005 and 2006-2020. In terms of the aggregate network, Davenport ranked 2nd out of 4 cities in Iowa and 28th out of 333 in United States as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 4.43
- Rank in United States
- 205th of 333
- Rank in Iowa
- 4th of 4
Entire Network (Aggregate)
- SNDi value
- 1.9
- Rank in United States
- 28th of 333
- Rank in Iowa
- 2nd of 4
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
Davenport, Ocotlán, and Coatepeque all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Notably, Davenport had a more sprawly network than Ocotlán in 1975 but the two have since reversed their relative ranking.