Anhua in context: Street-network sprawl trends

Anhua in context

34567<19751976–19901991–20052006–2020SNDi of street additions
34567<19751976–19901991–20052006–2020SNDi of entire street network
AnhuaHunan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Anhua plotted against Hunan and China. While Hunan and China both followed a zig-zag trend with an overall increase, Anhua's new street additions followed a zig-zag trend with an overall increase. Most recently, Anhua's incremental SNDi rose from 4.22 to 5.17 between 1991-2005 and 2006-2020. In terms of the aggregate network, Anhua ranked 88th out of 89 cities in Hunan and 1730th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
5.17
Rank in China
1665th of 1843
Rank in Hunan
84th of 89

Entire Network (Aggregate)

SNDi value
5.09
Rank in China
1730th of 1843
Rank in Hunan
88th of 89

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

What about similarly populated cities?

34567<19751976–19901991–20052006–2020SNDi of street additions
34567<19751976–19901991–20052006–2020SNDi of entire street network
AnhuaFairfieldJinsha

In new street additions, Anhua and Jinsha both fluctuated in its street-construction patterns, while Fairfield built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Anhua and Jinsha both fluctuated in connectivity, while Fairfield grew more disconnected from 1975 through 1991-2005, then improved. Notably, Anhua had a more connected network than Fairfield in 1975 but the two have since reversed their relative ranking.