Ningdu in context: Street-network sprawl trends

Ningdu in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
NingduJiangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ningdu plotted against Jiangxi and China. While Jiangxi and China both followed a zig-zag trend with an overall increase, Ningdu's new street additions followed a zig-zag trend with an overall increase. Most recently, Ningdu's incremental SNDi rose from 2.37 to 3.69 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ningdu ranked 31st out of 82 cities in Jiangxi and 642nd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.69
Rank in China
1245th of 1843
Rank in Jiangxi
67th of 82

Entire Network (Aggregate)

SNDi value
2.57
Rank in China
642nd of 1843
Rank in Jiangxi
31st of 82

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

What about similarly populated cities?

4812<19751976–19901991–20052006–2020SNDi of street additions
4812<19751976–19901991–20052006–2020SNDi of entire street network
NingduDeobandSaida

In new street additions, Ningdu and Deoband both fluctuated in its street-construction patterns, while Saida built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Ningdu and Deoband both became progressively more disconnected, while Saida grew more disconnected from 1975 through 1976-1990, then improved. Notably, Ningdu had a more connected network than Saida in 1975 but the two have since reversed their relative ranking.