Yixing in context: Street-network sprawl trends

Yixing in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
YixingJiangsu (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yixing plotted against Jiangsu and China. While Jiangsu and China both followed a zig-zag trend with an overall increase, Yixing's new street additions followed a zig-zag trend with an overall increase. Most recently, Yixing's incremental SNDi rose from 2.85 to 3.24 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yixing ranked 57th out of 101 cities in Jiangsu and 951st out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.24
Rank in China
1019th of 1843
Rank in Jiangsu
63rd of 101

Entire Network (Aggregate)

SNDi value
2.91
Rank in China
951st of 1843
Rank in Jiangsu
57th of 101

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

What about similarly populated cities?

234567<19751976–19901991–20052006–2020SNDi of street additions
234567<19751976–19901991–20052006–2020SNDi of entire street network
YixingKanchipuramBharuch

In new street additions, Yixing and Kanchipuram both fluctuated in its street-construction patterns, while Bharuch built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Yixing and Kanchipuram have been growing further apart in their street-network character since 1975.