Chuzhou in context: Street-network sprawl trends

Chuzhou 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
ChuzhouAnhui (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Chuzhou plotted against Anhui and China. The SNDi of new construction in Chuzhou rose steadily, compared to Anhui which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Chuzhou's incremental SNDi rose from 3.11 to 3.43 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chuzhou ranked 48th out of 74 cities in Anhui and 946th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.43
Rank in China
1120th of 1843
Rank in Anhui
56th of 74

Entire Network (Aggregate)

SNDi value
2.9
Rank in China
946th of 1843
Rank in Anhui
48th of 74

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
ChuzhouKhandwaBournemouth

In new street additions, Chuzhou and Khandwa both built increasingly disconnected streets over time, while Bournemouth built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Chuzhou and Khandwa have been growing further apart in their street-network character since 1975.