Zhangzhou in context: Street-network sprawl trends

Zhangzhou in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
ZhangzhouFujian (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zhangzhou plotted against Fujian and China. While Fujian and China both followed a zig-zag trend with an overall increase, Zhangzhou's new street additions followed a zig-zag trend with an overall increase. Most recently, Zhangzhou's incremental SNDi rose from 3.52 to 3.74 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zhangzhou ranked 44th out of 75 cities in Fujian and 1354th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.74
Rank in China
1275th of 1843
Rank in Fujian
40th of 75

Entire Network (Aggregate)

SNDi value
3.48
Rank in China
1354th of 1843
Rank in Fujian
44th of 75

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
ZhangzhouBaotouGwangju

Zhangzhou, Baotou, and Gwangju all fluctuated in its street-construction patterns in new street construction. The same pattern holds for the full street network. Notably, Zhangzhou had a more connected network than Baotou in 1975 but the two have since reversed their relative ranking.