Ningguo in context: Street-network sprawl trends

Ningguo 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
NingguoAnhui (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ningguo plotted against Anhui and China. The SNDi of new construction in Ningguo peaked in 1991-2005, compared to Anhui which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Ningguo's incremental SNDi fell from 3.36 to 3.12 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ningguo ranked 52nd out of 74 cities in Anhui and 1024th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.12
Rank in China
953rd of 1843
Rank in Anhui
51st of 74

Entire Network (Aggregate)

SNDi value
2.99
Rank in China
1024th of 1843
Rank in Anhui
52nd of 74

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
NingguoPatheinOngole

While Pathein and Ongole both built increasingly disconnected streets over time, Ningguo built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. For the full street network, though, all three cities follow the same trend. Ningguo and Ongole have been converging in their street-network character since 1975.