Shuangluan in context: Street-network sprawl trends

Shuangluan in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
ShuangluanHebei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shuangluan plotted against Hebei and China. The SNDi of new construction in Shuangluan peaked in 1976-1990, compared to Hebei which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Shuangluan's incremental SNDi fell from 3.08 to 2.3 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shuangluan ranked 66th out of 120 cities in Hebei and 1005th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.3
Rank in China
394th of 1843
Rank in Hebei
16th of 120

Entire Network (Aggregate)

SNDi value
2.97
Rank in China
1005th of 1843
Rank in Hebei
66th of 120

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
ShuangluanNanduraRahad al Bardi

In new street additions, Shuangluan built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Nandura fluctuated in its street-construction patterns and Rahad al Bardi built increasingly disconnected streets from 1975 through 1991-2005, then improved. Looking at the full network, Nandura and Rahad al Bardi both became progressively more disconnected, while Shuangluan grew more disconnected from 1975 through 1976-1990, then improved. Notably, Shuangluan had a more sprawly network than Nandura in 1975 but the two have since reversed their relative ranking.