Dantu District in context: Street-network sprawl trends

Dantu District in context

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
Dantu DistrictJiangsu (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dantu District plotted against Jiangsu and China. While Jiangsu and China both followed a zig-zag trend with an overall increase, Dantu District's new street additions followed a zig-zag trend with an overall decrease. Most recently, Dantu District's incremental SNDi rose from 1.96 to 2.45 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dantu District ranked 32nd out of 101 cities in Jiangsu and 487th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.45
Rank in China
484th of 1843
Rank in Jiangsu
29th of 101

Entire Network (Aggregate)

SNDi value
2.37
Rank in China
487th of 1843
Rank in Jiangsu
32nd of 101

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
Dantu DistrictHaizijieSidi Yahya du Gharb

In new street additions, Dantu District and Sidi Yahya du Gharb both fluctuated in its street-construction patterns, while Haizijie fluctuated in its street-construction patterns. For the full network, Dantu District became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Haizijie fluctuated in connectivity and Sidi Yahya du Gharb became progressively more disconnected. Notably, Dantu District had a more sprawly network than Haizijie in 1975 but the two have since reversed their relative ranking.