Anshun in context: Street-network sprawl trends

Anshun 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
AnshunGuizhou (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Anshun plotted against Guizhou and China. While Guizhou and China both followed a zig-zag trend with an overall increase, Anshun's new street additions followed a zig-zag trend with an overall increase. Most recently, Anshun's incremental SNDi rose from 3.19 to 3.2 between 1991-2005 and 2006-2020. In terms of the aggregate network, Anshun ranked 17th out of 41 cities in Guizhou and 840th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.2
Rank in China
1007th of 1843
Rank in Guizhou
19th of 41

Entire Network (Aggregate)

SNDi value
2.79
Rank in China
840th of 1843
Rank in Guizhou
17th of 41

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

What about similarly populated cities?

2.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
AnshunParbhaniAnnaba

In new street additions, Anshun fluctuated in its street-construction patterns, while Parbhani built increasingly disconnected streets over time and Annaba built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Anshun and Parbhani have been converging in their street-network character since 1975.