Gangu in context: Street-network sprawl trends

Gangu in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
GanguGansu (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Gangu plotted against Gansu and China. While Gansu and China both followed a zig-zag trend with an overall increase, Gangu's new street additions followed a zig-zag trend with an overall increase. Most recently, Gangu's incremental SNDi rose from 3.79 to 4.02 between 1991-2005 and 2006-2020. In terms of the aggregate network, Gangu ranked 14th out of 29 cities in Gansu and 1494th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.02
Rank in China
1409th of 1843
Rank in Gansu
15th of 29

Entire Network (Aggregate)

SNDi value
3.8
Rank in China
1494th of 1843
Rank in Gansu
14th of 29

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
GanguLensWukari

In new street additions, Gangu and Lens both fluctuated in its street-construction patterns, while Wukari built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Gangu and Lens have been growing further apart in their street-network character since 1975.