Shuangfeng in context: Street-network sprawl trends

Shuangfeng in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shuangfeng plotted against Hunan and China. The SNDi of new construction in Shuangfeng peaked in 1991-2005, compared to Hunan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Shuangfeng's incremental SNDi fell from 3.09 to 2.09 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shuangfeng ranked 25th out of 89 cities in Hunan and 544th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.09
Rank in China
294th of 1843
Rank in Hunan
19th of 89

Entire Network (Aggregate)

SNDi value
2.45
Rank in China
544th of 1843
Rank in Hunan
25th of 89

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

What about similarly populated cities?

369<19751976–19901991–20052006–2020SNDi of street additions
369<19751976–19901991–20052006–2020SNDi of entire street network
ShuangfengRustaqTan Phu

In new street additions, Shuangfeng built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Rustaq built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Tân Phú built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. Looking at the full network, Rustaq and Tân Phú both became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Shuangfeng grew more disconnected from 1975 through 1991-2005, then improved. Shuangfeng and Rustaq have been converging in their street-network character since 1975.