Xichong in context: Street-network sprawl trends

Xichong in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
XichongSichuan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Xichong plotted against Sichuan and China. The SNDi of new construction in Xichong rose steadily, 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, Xichong's incremental SNDi rose from 2.36 to 2.49 between 1991-2005 and 2006-2020. In terms of the aggregate network, Xichong ranked 16th out of 98 cities in Sichuan and 420th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.49
Rank in China
510th of 1843
Rank in Sichuan
20th of 98

Entire Network (Aggregate)

SNDi value
2.28
Rank in China
420th of 1843
Rank in Sichuan
16th of 98

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

What about similarly populated cities?

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
XichongBaydaIshiagu

In new street additions, Xichong built increasingly disconnected streets over time, while Bayda built increasingly disconnected streets from 1975 through 1991-2005, then improved and Ishiagu fluctuated in its street-construction patterns. For the full network, Xichong and Bayda both became progressively more disconnected, while Ishiagu fluctuated in connectivity.