Fairfield in context: Street-network sprawl trends

Fairfield 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
FairfieldCalifornia (Region)United States (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Fairfield plotted against California and United States. While California and United States both peaked in 1991-2005, Fairfield's new street additions peaked in 1991-2005. Most recently, Fairfield's incremental SNDi fell from 4.57 to 3.96 between 1991-2005 and 2006-2020. In terms of the aggregate network, Fairfield ranked 43rd out of 60 cities in California and 261st out of 333 in United States as of 2020.

New Street Additions (2006–2020)

SNDi value
3.96
Rank in United States
142nd of 333
Rank in California
22nd of 60

Entire Network (Aggregate)

SNDi value
4.12
Rank in United States
261st of 333
Rank in California
43rd 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
FairfieldEl Kelaa des SraghnaAnhua

In new street additions, Fairfield built increasingly disconnected streets from 1975 through 1991-2005, then improved, while El Kelaa des Sraghna built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns and Anhua fluctuated in its street-construction patterns. For the full network, Fairfield grew more disconnected from 1975 through 1991-2005, then improved, while El Kelaa des Sraghna became progressively more connected and Anhua fluctuated in connectivity. Notably, Fairfield had a more sprawly network than Anhua in 1975 but the two have since reversed their relative ranking.