Xichang in context: Street-network sprawl trends

Xichang 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
XichangSichuan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Xichang plotted against Sichuan and China. The SNDi of new construction in Xichang peaked in 1976-1990, compared to Sichuan which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Xichang's incremental SNDi fell from 3.35 to 2.92 between 1991-2005 and 2006-2020. In terms of the aggregate network, Xichang ranked 64th out of 98 cities in Sichuan and 1356th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.92
Rank in China
824th of 1843
Rank in Sichuan
38th of 98

Entire Network (Aggregate)

SNDi value
3.48
Rank in China
1356th of 1843
Rank in Sichuan
64th of 98

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

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
XichangRishikeshFanling

While Rishikesh and Fanling both built increasingly disconnected streets over time, Xichang built increasingly disconnected streets from 1975 through 1976-1990, then improved in new street additions. Looking at the full network, Rishikesh and Fanling both became progressively more disconnected, while Xichang grew more disconnected from 1975 through 1976-1990, then improved. Xichang and Rishikesh have been growing further apart in their street-network character since 1975.