Zixing in context: Street-network sprawl trends

Zixing in context

1.82.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
ZixingHunan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zixing plotted against Hunan and China. While Hunan and China both followed a zig-zag trend with an overall increase, Zixing's new street additions followed a zig-zag trend with an overall increase. Most recently, Zixing's incremental SNDi rose from 2.4 to 2.87 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zixing ranked 22nd out of 89 cities in Hunan and 524th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.87
Rank in China
786th of 1843
Rank in Hunan
44th of 89

Entire Network (Aggregate)

SNDi value
2.42
Rank in China
524th of 1843
Rank in Hunan
22nd of 89

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
ZixingPuerto PrincesaFushun

In new street additions, Zixing and Fushun both fluctuated in its street-construction patterns, while Puerto Princesa built increasingly disconnected streets over time. For the full network, Zixing and Puerto Princesa both became progressively more disconnected, while Fushun fluctuated in connectivity. Zixing and Puerto Princesa have been growing further apart in their street-network character since 1975.