Le'an in context: Street-network sprawl trends

Le'an in context

468<19751976–19901991–20052006–2020SNDi of street additions
468<19751976–19901991–20052006–2020SNDi of entire street network
Le'anJiangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Le'an plotted against Jiangxi and China. The SNDi of new construction in Le'an peaked in 1976-1990, compared to Jiangxi which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Le'an's incremental SNDi fell from 7.25 to 6.37 between 1991-2005 and 2006-2020. In terms of the aggregate network, Le'an ranked 82nd out of 82 cities in Jiangxi and 1799th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
6.37
Rank in China
1758th of 1843
Rank in Jiangxi
80th of 82

Entire Network (Aggregate)

SNDi value
6.38
Rank in China
1799th of 1843
Rank in Jiangxi
82nd of 82

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

What about similarly populated cities?

246810<19751976–19901991–20052006–2020SNDi of street additions
246810<19751976–19901991–20052006–2020SNDi of entire street network
Le'anAl-TabqahGossaigaon

In new street additions, Le'an built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Al-Tabqah built increasingly disconnected streets from 1975 through 1991-2005, then improved and Gossaigaon fluctuated in its street-construction patterns. For the full network, Le'an and Al-Tabqah both became progressively more disconnected, while Gossaigaon fluctuated in connectivity. Le'an and Al-Tabqah have been growing further apart in their street-network character since 1975.