Changyi in context: Street-network sprawl trends

Changyi 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
ChangyiShandong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Changyi plotted against Shandong and China. While Shandong and China both followed a zig-zag trend with an overall increase, Changyi's new street additions followed a zig-zag trend with an overall increase. Most recently, Changyi's incremental SNDi rose from 2.63 to 2.88 between 1991-2005 and 2006-2020. In terms of the aggregate network, Changyi ranked 82nd out of 124 cities in Shandong and 822nd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.88
Rank in China
797th of 1843
Rank in Shandong
78th of 124

Entire Network (Aggregate)

SNDi value
2.77
Rank in China
822nd of 1843
Rank in Shandong
82nd of 124

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

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
ChangyiMuntilanShivpuri

In new street additions, Changyi fluctuated in its street-construction patterns, while Muntilan built increasingly disconnected streets from 1975 through 1991-2005, then improved and Shivpuri built increasingly disconnected streets over time. Looking at the full network, Muntilan and Shivpuri both became progressively more disconnected, while Changyi fluctuated in connectivity. Notably, Changyi had a more sprawly network than Shivpuri in 1975 but the two have since reversed their relative ranking.