Shangdang in context: Street-network sprawl trends

Shangdang in context

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
ShangdangShanxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shangdang plotted against Shanxi and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Shangdang's incremental SNDi rose from 1.55 to 1.69 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shangdang ranked 3rd out of 80 cities in Shanxi and 100th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.69
Rank in China
115th of 1843
Rank in Shanxi
5th of 80

Entire Network (Aggregate)

SNDi value
1.7
Rank in China
100th of 1843
Rank in Shanxi
3rd of 80

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
ShangdangMossel BayPancevo

In new street additions, Shangdang fluctuated in its street-construction patterns, while Mossel Bay built increasingly disconnected streets from 1975 through 1976-1990, then improved and Pančevo built increasingly disconnected streets over time. Looking at the full network, Mossel Bay and Pančevo both became progressively more disconnected, while Shangdang grew more disconnected from 1975 through 1976-1990, then improved.