Kennewick in context: Street-network sprawl trends

Kennewick in context

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
KennewickWashington (Region)United States (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Kennewick plotted against Washington and United States. While Washington and United States both peaked in 1991-2005, Kennewick's new street additions peaked in 1991-2005. Most recently, Kennewick's incremental SNDi fell from 4.04 to 3.58 between 1991-2005 and 2006-2020. In terms of the aggregate network, Kennewick ranked 5th out of 8 cities in Washington and 186th out of 333 in United States as of 2020.

New Street Additions (2006–2020)

SNDi value
3.58
Rank in United States
91st of 333
Rank in Washington
1st of 8

Entire Network (Aggregate)

SNDi value
3.41
Rank in United States
186th of 333
Rank in Washington
5th of 8

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

What about similarly populated cities?

33.64.24.8<19751976–19901991–20052006–2020SNDi of street additions
33.64.24.8<19751976–19901991–20052006–2020SNDi of entire street network
KennewickColchesterVisalia

In new street additions, Kennewick and Visalia both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Colchester built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Kennewick and Visalia both became progressively more disconnected, while Colchester grew more disconnected from 1975 through 1991-2005, then improved. Notably, Kennewick had a more sprawly network than Visalia in 1975 but the two have since reversed their relative ranking.