Longhui in context: Street-network sprawl trends

Longhui 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
LonghuiHunan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Longhui plotted against Hunan and China. While Hunan and China both followed a zig-zag trend with an overall increase, Longhui's new street additions followed a zig-zag trend with an overall increase. Most recently, Longhui's incremental SNDi rose from 2.86 to 4.25 between 1991-2005 and 2006-2020. In terms of the aggregate network, Longhui ranked 59th out of 89 cities in Hunan and 1300th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.25
Rank in China
1475th of 1843
Rank in Hunan
75th of 89

Entire Network (Aggregate)

SNDi value
3.39
Rank in China
1300th of 1843
Rank in Hunan
59th of 89

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
LonghuiPubeiLa Piedad de Cabadas

In new street additions, Longhui fluctuated in its street-construction patterns, while Pubei built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and La Piedad de Cabadas built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Longhui fluctuated in connectivity, while Pubei became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards and La Piedad de Cabadas became progressively more disconnected. Longhui and Pubei have been growing further apart in their street-network character since 1975.