Honggu in context: Street-network sprawl trends

Honggu in context

33.64.24.85.4<19751976–19901991–20052006–2020SNDi of street additions
33.64.24.85.4<19751976–19901991–20052006–2020SNDi of entire street network
HongguGansu (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Honggu plotted against Gansu and China. The SNDi of new construction in Honggu followed a zig-zag trend with an overall decrease, compared to Gansu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Honggu's incremental SNDi fell from 4.61 to 3.93 between 1991-2005 and 2006-2020. In terms of the aggregate network, Honggu ranked 19th out of 29 cities in Gansu and 1675th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.93
Rank in China
1376th of 1843
Rank in Gansu
13th of 29

Entire Network (Aggregate)

SNDi value
4.62
Rank in China
1675th of 1843
Rank in Gansu
19th of 29

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

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
HongguWudingLeesburg

In new street additions, Honggu and Wuding both fluctuated in its street-construction patterns, while Leesburg built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Honggu and Wuding both fluctuated in connectivity, while Leesburg became progressively more disconnected. Honggu and Leesburg have been converging in their street-network character since 1975.