Jianhuai in context: Street-network sprawl trends

Jianhuai in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
JianhuaiJiangsu (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jianhuai plotted against Jiangsu and China. The SNDi of new construction in Jianhuai rose steadily, compared to Jiangsu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Jianhuai's incremental SNDi rose from 2.97 to 4.38 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jianhuai ranked 78th out of 101 cities in Jiangsu and 1338th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.38
Rank in China
1501st of 1843
Rank in Jiangsu
89th of 101

Entire Network (Aggregate)

SNDi value
3.45
Rank in China
1338th of 1843
Rank in Jiangsu
78th of 101

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
JianhuaiSpanish ForkAwlad Seif

In new street additions, Jianhuai built increasingly disconnected streets over time, while Spanish Fork built increasingly disconnected streets from 1975 through 1991-2005, then improved and Awlad Seif fluctuated in its street-construction patterns. For the full network, Jianhuai and Spanish Fork both became progressively more disconnected, while Awlad Seif fluctuated in connectivity. Jianhuai and Spanish Fork have been growing further apart in their street-network character since 1975.