Lianxing in context: Street-network sprawl trends

Lianxing in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lianxing plotted against Hunan and China. The SNDi of new construction in Lianxing peaked in 1976-1990, compared to Hunan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Lianxing's incremental SNDi fell from 2.27 to 1.91 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lianxing ranked 8th out of 89 cities in Hunan and 257th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.91
Rank in China
204th of 1843
Rank in Hunan
13th of 89

Entire Network (Aggregate)

SNDi value
2.05
Rank in China
257th of 1843
Rank in Hunan
8th of 89

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
LianxingGedebPalangka Raya

While Gedeb and Palangka Raya both built increasingly disconnected streets over time, Lianxing built increasingly disconnected streets from 1975 through 1976-1990, then improved in new street additions. Looking at the full network, Gedeb and Palangka Raya both became progressively more disconnected, while Lianxing grew more disconnected from 1975 through 1991-2005, then improved.