Danbei in context: Street-network sprawl trends

Danbei in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Danbei plotted against Jiangsu and China. The SNDi of new construction in Danbei was at its lowest in 1976-1990, compared to Jiangsu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Danbei's incremental SNDi rose from 3.26 to 3.71 between 1991-2005 and 2006-2020. In terms of the aggregate network, Danbei ranked 77th out of 101 cities in Jiangsu and 1320th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.71
Rank in China
1261st of 1843
Rank in Jiangsu
79th of 101

Entire Network (Aggregate)

SNDi value
3.42
Rank in China
1320th of 1843
Rank in Jiangsu
77th of 101

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
DanbeiShimenShizhu

In new street additions, Danbei built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Shimen fluctuated in its street-construction patterns and Shizhu built increasingly disconnected streets over time. For the full network, Danbei became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Shimen fluctuated in connectivity and Shizhu became progressively more disconnected. Danbei and Shimen have been growing further apart in their street-network character since 1975.