Linghai in context: Street-network sprawl trends

Linghai in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
LinghaiLiaoning (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Linghai plotted against Liaoning and China. The SNDi of new construction in Linghai peaked in 1976-1990, compared to Liaoning which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Linghai's incremental SNDi fell from 2.62 to 1.94 between 1991-2005 and 2006-2020. In terms of the aggregate network, Linghai ranked 10th out of 61 cities in Liaoning and 269th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.94
Rank in China
219th of 1843
Rank in Liaoning
12th of 61

Entire Network (Aggregate)

SNDi value
2.09
Rank in China
269th of 1843
Rank in Liaoning
10th of 61

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

What about similarly populated cities?

36912<19751976–19901991–20052006–2020SNDi of street additions
36912<19751976–19901991–20052006–2020SNDi of entire street network
LinghaiWakemaMoheshkhali

In new street additions, Linghai and Wakema both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Moheshkhali fluctuated in its street-construction patterns. For the full network, Linghai and Moheshkhali both grew more disconnected from 1975 through 1991-2005, then improved, while Wakema grew more disconnected from 1975 through 1976-1990, then improved.