Nanning in context: Street-network sprawl trends

Nanning in context

33.64.24.8<19751976–19901991–20052006–2020SNDi of street additions
33.64.24.8<19751976–19901991–20052006–2020SNDi of entire street network
NanningGuangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Nanning plotted against Guangxi and China. The SNDi of new construction in Nanning 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, Nanning's incremental SNDi fell from 2.77 to 2.77 between 1991-2005 and 2006-2020. In terms of the aggregate network, Nanning ranked 20th out of 63 cities in Guangxi and 827th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.77
Rank in China
713th of 1843
Rank in Guangxi
14th of 63

Entire Network (Aggregate)

SNDi value
2.78
Rank in China
827th of 1843
Rank in Guangxi
20th of 63

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
NanningP'yongyangGuatemala City

In new street additions, Nanning built increasingly disconnected streets from 1975 through 1976-1990, then improved, while P'yŏngyang built increasingly disconnected streets from 1975 through 1991-2005, then improved and Guatemala City fluctuated in its street-construction patterns. Looking at the full network, P'yŏngyang and Guatemala City both became progressively more disconnected, while Nanning grew more disconnected from 1975 through 1976-1990, then improved. Nanning and Guatemala City have been growing further apart in their street-network character since 1975.