Shaliuhe in context: Street-network sprawl trends

Shaliuhe in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
ShaliuheHebei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shaliuhe plotted against Hebei and China. The SNDi of new construction in Shaliuhe peaked in 1991-2005, 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, Shaliuhe's incremental SNDi fell from 2.47 to 2.35 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shaliuhe ranked 15th out of 120 cities in Hebei and 335th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.35
Rank in China
421st of 1843
Rank in Hebei
19th of 120

Entire Network (Aggregate)

SNDi value
2.18
Rank in China
335th of 1843
Rank in Hebei
15th of 120

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

What about similarly populated cities?

0.61.21.82.4<19751976–19901991–20052006–2020SNDi of street additions
0.61.21.82.4<19751976–19901991–20052006–2020SNDi of entire street network
ShaliuheFu An Zhen Gawaki

In new street additions, Shaliuhe built increasingly disconnected streets from 1975 through 1991-2005, then improved, while 富安镇 built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Gawaki fluctuated in its street-construction patterns. For the full network, Shaliuhe became progressively more disconnected, while 富安镇 became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Gawaki became progressively more disconnected. Notably, Shaliuhe had a more connected network than 富安镇 in 1975 but the two have since reversed their relative ranking.