Guanhu in context: Street-network sprawl trends

Guanhu in context

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
GuanhuJiangsu (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Guanhu plotted against Jiangsu and China. The SNDi of new construction in Guanhu peaked in 1991-2005, compared to Jiangsu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Guanhu's incremental SNDi fell from 4.85 to 1.09 between 1991-2005 and 2006-2020. In terms of the aggregate network, Guanhu ranked 11th out of 101 cities in Jiangsu and 160th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.09
Rank in China
19th of 1843
Rank in Jiangsu
2nd of 101

Entire Network (Aggregate)

SNDi value
1.87
Rank in China
160th of 1843
Rank in Jiangsu
11th of 101

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
GuanhuMedfordProletar

Guanhu, Medford, and Proletar all built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street construction. Looking at the full network, Medford and Proletar both became progressively more disconnected, while Guanhu fluctuated in connectivity. Guanhu and Medford have been converging in their street-network character since 1975.