Wangjiangjing in context: Street-network sprawl trends

Wangjiangjing in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
WangjiangjingJiangsu (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Wangjiangjing plotted against Jiangsu and China. The SNDi of new construction in Wangjiangjing rose steadily, compared to Jiangsu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Wangjiangjing's incremental SNDi rose from 4.6 to 4.96 between 1991-2005 and 2006-2020. In terms of the aggregate network, Wangjiangjing ranked 96th out of 101 cities in Jiangsu and 1677th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.96
Rank in China
1626th of 1843
Rank in Jiangsu
97th of 101

Entire Network (Aggregate)

SNDi value
4.63
Rank in China
1677th of 1843
Rank in Jiangsu
96th of 101

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
WangjiangjingDezhouHamamatsu

In new street additions, Wangjiangjing built increasingly disconnected streets over time, while Dezhou built increasingly disconnected streets from 1975 through 1976-1990, then improved and Hamamatsu fluctuated in its street-construction patterns. For the full network, Wangjiangjing and Hamamatsu both became progressively more disconnected, while Dezhou grew more disconnected from 1975 through 1976-1990, then improved. Notably, Wangjiangjing had a more connected network than Dezhou in 1975 but the two have since reversed their relative ranking.