Liangshan in context: Street-network sprawl trends

Liangshan in context

2.43.24<19751976–19901991–20052006–2020SNDi of street additions
2.43.24<19751976–19901991–20052006–2020SNDi of entire street network
LiangshanShandong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Liangshan plotted against Shandong and China. The SNDi of new construction in Liangshan followed a zig-zag trend with an overall increase, compared to Shandong which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Liangshan's incremental SNDi fell from 2.86 to 2.45 between 1991-2005 and 2006-2020. In terms of the aggregate network, Liangshan ranked 67th out of 124 cities in Shandong and 493rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.45
Rank in China
483rd of 1843
Rank in Shandong
50th of 124

Entire Network (Aggregate)

SNDi value
2.37
Rank in China
493rd of 1843
Rank in Shandong
67th of 124

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

What about similarly populated cities?

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
LiangshanNingjinTarim

In new street additions, Liangshan fluctuated in its street-construction patterns, while Ningjin fluctuated in its street-construction patterns and Tarim built increasingly disconnected streets from 1975 through 1991-2005, then improved. Looking at the full network, Ningjin and Tarim both became progressively more disconnected, while Liangshan became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Liangshan and Ningjin have been converging in their street-network character since 1975.