Bashan in context: Street-network sprawl trends

Bashan 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
BashanJiangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bashan plotted against Jiangxi and China. The SNDi of new construction in Bashan rose steadily, compared to Jiangxi which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Bashan's incremental SNDi rose from 4.03 to 4.83 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bashan ranked 64th out of 82 cities in Jiangxi and 1232nd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.83
Rank in China
1598th of 1843
Rank in Jiangxi
77th of 82

Entire Network (Aggregate)

SNDi value
3.27
Rank in China
1232nd of 1843
Rank in Jiangxi
64th of 82

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
BashanMangrolMatehuala

In new street additions, Bashan and Mangrol both built increasingly disconnected streets over time, while Matehuala fluctuated in its street-construction patterns. For the full network, Bashan and Mangrol both became progressively more disconnected, while Matehuala fluctuated in connectivity. Bashan and Matehuala have been growing further apart in their street-network character since 1975.