Huailai in context: Street-network sprawl trends

Huailai in context

2.43.24<19751976–19901991–20052006–2020SNDi of street additions
2.43.24<19751976–19901991–20052006–2020SNDi of entire street network
HuailaiHebei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Huailai plotted against Hebei and China. The SNDi of new construction in Huailai followed a zig-zag trend with an overall decrease, 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, Huailai's incremental SNDi fell from 2.01 to 1.97 between 1991-2005 and 2006-2020. In terms of the aggregate network, Huailai ranked 8th out of 120 cities in Hebei and 265th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.97
Rank in China
229th of 1843
Rank in Hebei
8th of 120

Entire Network (Aggregate)

SNDi value
2.08
Rank in China
265th of 1843
Rank in Hebei
8th 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
HuailaiWenxiBaqubah

In new street additions, Huailai fluctuated in its street-construction patterns, while Wenxi built increasingly disconnected streets from 1975 through 1991-2005, then improved and Baqubah built increasingly disconnected streets over time. Looking at the full network, Wenxi and Baqubah both became progressively more disconnected, while Huailai became progressively more connected. Notably, Huailai had a more sprawly network than Baqubah in 1975 but the two have since reversed their relative ranking.