Baoying in context: Street-network sprawl trends

Baoying in context

33.544.5<19751976–19901991–20052006–2020SNDi of street additions
33.544.5<19751976–19901991–20052006–2020SNDi of entire street network
BaoyingJiangsu (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Baoying plotted against Jiangsu and China. While Jiangsu and China both followed a zig-zag trend with an overall increase, Baoying's new street additions followed a zig-zag trend with an overall increase. Most recently, Baoying's incremental SNDi rose from 3.62 to 3.75 between 1991-2005 and 2006-2020. In terms of the aggregate network, Baoying ranked 82nd out of 101 cities in Jiangsu and 1385th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.75
Rank in China
1282nd of 1843
Rank in Jiangsu
83rd of 101

Entire Network (Aggregate)

SNDi value
3.53
Rank in China
1385th of 1843
Rank in Jiangsu
82nd of 101

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

What about similarly populated cities?

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
BaoyingGunaSanming

In new street additions, Baoying and Sanming both fluctuated in its street-construction patterns, while Guna built increasingly disconnected streets over time. Looking at the full network, Guna and Sanming both became progressively more disconnected, while Baoying fluctuated in connectivity. Notably, Baoying had a more sprawly network than Guna in 1975 but the two have since reversed their relative ranking.