Davis in context: Street-network sprawl trends

Davis in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
DavisCalifornia (Region)United States (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Davis plotted against California and United States. The SNDi of new construction in Davis was at its lowest in 1976-1990, compared to California which peaked in 1976-1990 and United States which peaked in 1991-2005. Most recently, Davis's incremental SNDi rose from 2.55 to 3.23 between 1991-2005 and 2006-2020. In terms of the aggregate network, Davis ranked 3rd out of 60 cities in California and 93rd out of 333 in United States as of 2020.

New Street Additions (2006–2020)

SNDi value
3.23
Rank in United States
58th of 333
Rank in California
5th of 60

Entire Network (Aggregate)

SNDi value
2.58
Rank in United States
93rd of 333
Rank in California
3rd of 60

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
DavisChanglingBorca

In new street additions, Davis built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Changling fluctuated in its street-construction patterns and Borca built increasingly disconnected streets over time. For the full network, Davis became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Changling fluctuated in connectivity and Borca became progressively more disconnected. Notably, Davis had a more sprawly network than Changling in 1975 but the two have since reversed their relative ranking.