Xiushui in context: Street-network sprawl trends

Xiushui in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
XiushuiJiangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Xiushui plotted against Jiangxi and China. The SNDi of new construction in Xiushui peaked in 1991-2005, compared to Jiangxi which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Xiushui's incremental SNDi fell from 2.77 to 2.7 between 1991-2005 and 2006-2020. In terms of the aggregate network, Xiushui ranked 30th out of 82 cities in Jiangxi and 636th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.7
Rank in China
656th of 1843
Rank in Jiangxi
34th of 82

Entire Network (Aggregate)

SNDi value
2.56
Rank in China
636th of 1843
Rank in Jiangxi
30th of 82

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

What about similarly populated cities?

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
XiushuiHubliLos Angeles

In new street additions, Xiushui built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Hubli fluctuated in its street-construction patterns and Los Ángeles built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Notably, Xiushui had a more connected network than Hubli in 1975 but the two have since reversed their relative ranking.