Jieshan in context: Street-network sprawl trends

Jieshan in context

345678<19751976–19901991–20052006–2020SNDi of street additions
345678<19751976–19901991–20052006–2020SNDi of entire street network
JieshanFujian (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jieshan plotted against Fujian and China. While Fujian and China both followed a zig-zag trend with an overall increase, Jieshan's new street additions followed a zig-zag trend with an overall decrease. Most recently, Jieshan's incremental SNDi rose from 6.32 to 6.78 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jieshan ranked 73rd out of 75 cities in Fujian and 1819th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
6.78
Rank in China
1792nd of 1843
Rank in Fujian
71st of 75

Entire Network (Aggregate)

SNDi value
6.83
Rank in China
1819th of 1843
Rank in Fujian
73rd of 75

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

What about similarly populated cities?

345678<19751976–19901991–20052006–2020SNDi of street additions
345678<19751976–19901991–20052006–2020SNDi of entire street network
JieshanHojaiPaarl

In new street additions, Jieshan fluctuated in its street-construction patterns, while Hojai built increasingly disconnected streets over time and Paarl built increasingly disconnected streets from 1975 through 1991-2005, then improved. Looking at the full network, Hojai and Paarl both became progressively more disconnected, while Jieshan grew more disconnected from 1975 through 1976-1990, then improved.