Anyuan in context: Street-network sprawl trends

Anyuan in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
AnyuanJiangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Anyuan plotted against Jiangxi and China. The SNDi of new construction in Anyuan 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, Anyuan's incremental SNDi fell from 4.9 to 2.7 between 1991-2005 and 2006-2020. In terms of the aggregate network, Anyuan ranked 74th out of 82 cities in Jiangxi and 1516th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.7
Rank in China
658th of 1843
Rank in Jiangxi
35th of 82

Entire Network (Aggregate)

SNDi value
3.87
Rank in China
1516th of 1843
Rank in Jiangxi
74th of 82

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

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
AnyuanHuojiaKadiri

In new street additions, Anyuan built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Huojia built increasingly connected streets over time and Kadiri fluctuated in its street-construction patterns. For the full network, Anyuan grew more disconnected from 1975 through 1991-2005, then improved, while Huojia became progressively more connected and Kadiri became progressively more disconnected. Notably, Anyuan had a more connected network than Huojia in 1975 but the two have since reversed their relative ranking.