Jaingbian in context: Street-network sprawl trends

Jaingbian in context

3.64.24.8<19751976–19901991–20052006–2020SNDi of street additions
3.64.24.8<19751976–19901991–20052006–2020SNDi of entire street network
JaingbianJiangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jaingbian plotted against Jiangxi and China. The SNDi of new construction in Jaingbian peaked in 1991-2005, compared to Jiangxi which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Jaingbian's incremental SNDi fell from 4.23 to 3.91 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jaingbian ranked 76th out of 82 cities in Jiangxi and 1547th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.91
Rank in China
1363rd of 1843
Rank in Jiangxi
70th of 82

Entire Network (Aggregate)

SNDi value
3.99
Rank in China
1547th of 1843
Rank in Jiangxi
76th of 82

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
JaingbianFenghua DistrictPujiang

In new street additions, Jaingbian built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Fenghua District fluctuated in its street-construction patterns and Pujiang built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Jaingbian grew more disconnected from 1975 through 1991-2005, then improved, while Fenghua District fluctuated in connectivity and Pujiang became progressively more disconnected. Jaingbian and Pujiang have been converging in their street-network character since 1975.