Xiaoyi in context: Street-network sprawl trends

Xiaoyi in context

33.544.5<19751976–19901991–20052006–2020SNDi of street additions
33.544.5<19751976–19901991–20052006–2020SNDi of entire street network
XiaoyiShanxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Xiaoyi plotted against Shanxi and China. The SNDi of new construction in Xiaoyi peaked in 1976-1990, compared to Shanxi which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Xiaoyi's incremental SNDi fell from 3.26 to 2.8 between 1991-2005 and 2006-2020. In terms of the aggregate network, Xiaoyi ranked 48th out of 80 cities in Shanxi and 1246th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.8
Rank in China
738th of 1843
Rank in Shanxi
38th of 80

Entire Network (Aggregate)

SNDi value
3.3
Rank in China
1246th of 1843
Rank in Shanxi
48th of 80

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

What about similarly populated cities?

2.42.83.23.6<19751976–19901991–20052006–2020SNDi of street additions
2.42.83.23.6<19751976–19901991–20052006–2020SNDi of entire street network
Xiaoyi`Ar`arCabo Frio

In new street additions, Xiaoyi and Cabo Frio both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while `Ar`ar fluctuated in its street-construction patterns. For the full network, Xiaoyi grew more disconnected from 1975 through 1976-1990, then improved, while `Ar`ar fluctuated in connectivity and Cabo Frio became progressively more disconnected. Xiaoyi and Cabo Frio have been converging in their street-network character since 1975.