Ning'er in context: Street-network sprawl trends

Ning'er in context

33.64.24.8<19751976–19901991–20052006–2020SNDi of street additions
33.64.24.8<19751976–19901991–20052006–2020SNDi of entire street network
Ning'erYunnan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ning'er plotted against Yunnan and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Ning'er's incremental SNDi rose from 3.05 to 3.16 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ning'er ranked 49th out of 78 cities in Yunnan and 1215th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.16
Rank in China
974th of 1843
Rank in Yunnan
36th of 78

Entire Network (Aggregate)

SNDi value
3.24
Rank in China
1215th of 1843
Rank in Yunnan
49th of 78

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
Ning'erLoralaiYi'an

While Loralai and Yi'an both built increasingly disconnected streets from 1975 through 1991-2005, then improved, Ning'er fluctuated in its street-construction patterns in new street additions. Looking at the full network, Loralai and Yi'an both became progressively more disconnected, while Ning'er grew more disconnected from 1975 through 1976-1990, then improved. Ning'er and Loralai have been growing further apart in their street-network character since 1975.