Chengcheng in context: Street-network sprawl trends

Chengcheng in context

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
ChengchengShaanxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Chengcheng plotted against Shaanxi and China. While Shaanxi and China both followed a zig-zag trend with an overall increase, Chengcheng's new street additions followed a zig-zag trend with an overall increase. Most recently, Chengcheng's incremental SNDi rose from 1.41 to 1.74 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chengcheng ranked 1st out of 62 cities in Shaanxi and 84th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.74
Rank in China
136th of 1843
Rank in Shaanxi
2nd of 62

Entire Network (Aggregate)

SNDi value
1.66
Rank in China
84th of 1843
Rank in Shaanxi
1st of 62

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

What about similarly populated cities?

36912<19751976–19901991–20052006–2020SNDi of street additions
36912<19751976–19901991–20052006–2020SNDi of entire street network
ChengchengTaurangaUnchahar

In new street additions, Chengcheng and Unchahar both fluctuated in its street-construction patterns, while Tauranga built increasingly disconnected streets from 1975 through 1976-1990, then improved. Looking at the full network, Tauranga and Unchahar both became progressively more disconnected, while Chengcheng fluctuated in connectivity. Chengcheng and Unchahar have been growing further apart in their street-network character since 1975.