Hengshan in context: Street-network sprawl trends

Hengshan in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Hengshan plotted against Jiangsu and China. The SNDi of new construction in Hengshan rose steadily, compared to Jiangsu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Hengshan's incremental SNDi rose from 3.97 to 4.0 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hengshan ranked 89th out of 101 cities in Jiangsu as of 2020.

New Street Additions (2006–2020)

SNDi value
4.0
Rank in Jiangsu
86th of 101

Entire Network (Aggregate)

SNDi value
3.98
Rank in Jiangsu
89th of 101

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
HengshanMaygyrLar

In new street additions, Hengshan and Maygyr both built increasingly disconnected streets over time, while Lar fluctuated in its street-construction patterns. For the full network, Hengshan and Maygyr both became progressively more disconnected, while Lar fluctuated in connectivity. Hengshan and Maygyr have been growing further apart in their street-network character since 1975.