Xiangshui in context: Street-network sprawl trends

Xiangshui in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
XiangshuiJiangsu (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Xiangshui plotted against Jiangsu and China. The SNDi of new construction in Xiangshui peaked in 1976-1990, compared to Jiangsu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Xiangshui's incremental SNDi fell from 1.93 to 1.93 between 1991-2005 and 2006-2020. In terms of the aggregate network, Xiangshui ranked 12th out of 101 cities in Jiangsu and 177th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.93
Rank in China
216th of 1843
Rank in Jiangsu
13th of 101

Entire Network (Aggregate)

SNDi value
1.9
Rank in China
177th of 1843
Rank in Jiangsu
12th of 101

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
XiangshuiYangxinChunian

While Yangxin and Chunian both built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, Xiangshui built increasingly disconnected streets from 1975 through 1976-1990, then improved in new street additions. For the full network, Xiangshui became progressively more disconnected, while Yangxin became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards and Chunian became progressively more connected. Xiangshui and Yangxin have been converging in their street-network character since 1975.