Vacaville in context: Street-network sprawl trends

Vacaville in context

33.64.24.8<19751976–19901991–20052006–2020SNDi of street additions
33.64.24.8<19751976–19901991–20052006–2020SNDi of entire street network
VacavilleCalifornia (Region)United States (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Vacaville plotted against California and United States. The SNDi of new construction in Vacaville followed a zig-zag trend with an overall increase, compared to California which peaked in 1976-1990 and United States which peaked in 1991-2005. Most recently, Vacaville's incremental SNDi rose from 3.82 to 4.18 between 1991-2005 and 2006-2020. In terms of the aggregate network, Vacaville ranked 33rd out of 60 cities in California and 225th out of 333 in United States as of 2020.

New Street Additions (2006–2020)

SNDi value
4.18
Rank in United States
174th of 333
Rank in California
34th of 60

Entire Network (Aggregate)

SNDi value
3.68
Rank in United States
225th of 333
Rank in California
33rd of 60

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
VacavilleZarateSao Sebastiao

Vacaville, Zárate, and São Sebastião all fluctuated in its street-construction patterns in new street construction. For the full network, Vacaville and Zárate both became progressively more disconnected, while São Sebastião fluctuated in connectivity. Notably, Vacaville had a more connected network than São Sebastião in 1975 but the two have since reversed their relative ranking.