Dahua in context: Street-network sprawl trends

Dahua in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
DahuaGuangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dahua plotted against Guangxi and China. The SNDi of new construction in Dahua peaked in 1976-1990, compared to Guangxi which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Dahua's incremental SNDi fell from 2.77 to 2.57 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dahua ranked 13th out of 63 cities in Guangxi and 645th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.57
Rank in China
563rd of 1843
Rank in Guangxi
9th of 63

Entire Network (Aggregate)

SNDi value
2.57
Rank in China
645th of 1843
Rank in Guangxi
13th of 63

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
DahuaLatacungaHunsur

While Latacunga and Hunsur both fluctuated in its street-construction patterns, Dahua built increasingly disconnected streets from 1975 through 1976-1990, then improved in new street additions. For the full network, Dahua and Latacunga both became progressively more disconnected, while Hunsur fluctuated in connectivity. Notably, Dahua had a more sprawly network than Hunsur in 1975 but the two have since reversed their relative ranking.