Changzhi in context: Street-network sprawl trends

Changzhi in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
ChangzhiShanxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Changzhi plotted against Shanxi and China. The SNDi of new construction in Changzhi 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, Changzhi's incremental SNDi fell from 2.89 to 2.73 between 1991-2005 and 2006-2020. In terms of the aggregate network, Changzhi ranked 27th out of 80 cities in Shanxi and 678th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.73
Rank in China
680th of 1843
Rank in Shanxi
33rd of 80

Entire Network (Aggregate)

SNDi value
2.62
Rank in China
678th of 1843
Rank in Shanxi
27th of 80

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
ChangzhiJashoreFuzhou

In new street additions, Changzhi built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Jashore built increasingly disconnected streets over time and Fuzhou fluctuated in its street-construction patterns. Looking at the full network, Jashore and Fuzhou both became progressively more disconnected, while Changzhi grew more disconnected from 1975 through 1991-2005, then improved. Changzhi and Jashore have been growing further apart in their street-network character since 1975.