Yushu in context: Street-network sprawl trends

Yushu in context

33.64.24.8<19751976–19901991–20052006–2020SNDi of street additions
33.64.24.8<19751976–19901991–20052006–2020SNDi of entire street network
YushuJilin (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yushu plotted against Jilin and China. The SNDi of new construction in Yushu peaked in 1991-2005, compared to Jilin which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Yushu's incremental SNDi fell from 3.9 to 3.79 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yushu ranked 42nd out of 47 cities in Jilin as of 2020.

New Street Additions (2006–2020)

SNDi value
3.79
Rank in Jilin
30th of 47

Entire Network (Aggregate)

SNDi value
3.8
Rank in Jilin
42nd of 47

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

What about similarly populated cities?

3.64.55.46.3<19751976–19901991–20052006–2020SNDi of street additions
3.64.55.46.3<19751976–19901991–20052006–2020SNDi of entire street network
YushuM'banza CongoChia

In new street additions, Yushu built increasingly disconnected streets from 1975 through 1991-2005, then improved, while M'banza Congo built increasingly disconnected streets over time and Chía built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Yushu fluctuated in connectivity, while M'banza Congo became progressively more disconnected and Chía grew more disconnected from 1975 through 1991-2005, then improved. Yushu and M'banza Congo have been growing further apart in their street-network character since 1975.