Luanzhou in context: Street-network sprawl trends

Luanzhou 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
LuanzhouHebei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Luanzhou plotted against Hebei and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Luanzhou's incremental SNDi rose from 2.24 to 2.51 between 1991-2005 and 2006-2020. In terms of the aggregate network, Luanzhou ranked 38th out of 120 cities in Hebei and 653rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.51
Rank in China
521st of 1843
Rank in Hebei
24th of 120

Entire Network (Aggregate)

SNDi value
2.59
Rank in China
653rd of 1843
Rank in Hebei
38th 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
LuanzhouYenakiieveMamoudzou

In new street additions, Yenakiieve and Mamoudzou both built increasingly disconnected streets over time, while Luanzhou fluctuated in street-construction patterns. Looking at the full network, Yenakiieve and Mamoudzou both became progressively more disconnected, while Luanzhou grew more disconnected from 1975 through 1976-1990, then improved. Notably, Luanzhou had a more sprawly network than Mamoudzou in 1975, but the two have since reversed their relative ranking.