Sanchahe in context: Street-network sprawl trends

Sanchahe in context

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
SanchaheYunnan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sanchahe plotted against Yunnan and China. The SNDi of new construction in Sanchahe followed a zig-zag trend, 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. In terms of the aggregate network, Sanchahe ranked 67th out of 78 cities in Yunnan and 1617th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
N/A

Entire Network (Aggregate)

SNDi value
4.25
Rank in China
1617th of 1843
Rank in Yunnan
67th of 78

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
SanchaheYitongKashmore

In new street additions, Sanchahe fluctuated in its street-construction patterns, while Yitong built increasingly disconnected streets from 1975 through 1991-2005, then improved and Kashmore built increasingly disconnected streets over time. Looking at the full network, Yitong and Kashmore both became progressively more disconnected, while Sanchahe fluctuated in connectivity. Sanchahe and Yitong have been growing further apart in their street-network character since 1975.