Jinning in context: Street-network sprawl trends

Jinning 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
JinningYunnan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jinning plotted against Yunnan and China. The SNDi of new construction in Jinning peaked in 1976-1990, compared to Yunnan which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Jinning's incremental SNDi fell from 2.75 to 2.26 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jinning ranked 23rd out of 78 cities in Yunnan and 606th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.26
Rank in China
373rd of 1843
Rank in Yunnan
15th of 78

Entire Network (Aggregate)

SNDi value
2.52
Rank in China
606th of 1843
Rank in Yunnan
23rd of 78

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

What about similarly populated cities?

234567<19751976–19901991–20052006–2020SNDi of street additions
234567<19751976–19901991–20052006–2020SNDi of entire street network
JinningPilaAgoo

In new street additions, Jinning built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Pila fluctuated in its street-construction patterns and Agoo built increasingly disconnected streets over time. Looking at the full network, Pila and Agoo both became progressively more disconnected, while Jinning grew more disconnected from 1975 through 1976-1990, then improved. Jinning and Pila have been converging in their street-network character since 1975.