Kaili in context: Street-network sprawl trends

Kaili 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
KailiGuizhou (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Kaili plotted against Guizhou and China. The SNDi of new construction in Kaili rose steadily, compared to Guizhou which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Kaili's incremental SNDi rose from 3.31 to 3.66 between 1991-2005 and 2006-2020. In terms of the aggregate network, Kaili ranked 21st out of 41 cities in Guizhou and 1222nd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.66
Rank in China
1226th of 1843
Rank in Guizhou
26th of 41

Entire Network (Aggregate)

SNDi value
3.26
Rank in China
1222nd of 1843
Rank in Guizhou
21st of 41

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

What about similarly populated cities?

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
KailiTemucoQazvin

In new street additions, Kaili and Qazvin both built increasingly disconnected streets over time, while Temuco fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Notably, Kaili had a more sprawly network than Qazvin in 1975 but the two have since reversed their relative ranking.