Guangze in context: Street-network sprawl trends

Guangze in context

33.64.24.85.4<19751976–19901991–20052006–2020SNDi of street additions
33.64.24.85.4<19751976–19901991–20052006–2020SNDi of entire street network
GuangzeFujian (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Guangze plotted against Fujian and China. The SNDi of new construction in Guangze peaked in 1976-1990, compared to Fujian which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Guangze's incremental SNDi fell from 3.99 to 3.59 between 1991-2005 and 2006-2020. In terms of the aggregate network, Guangze ranked 55th out of 75 cities in Fujian and 1553rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.59
Rank in China
1185th of 1843
Rank in Fujian
35th of 75

Entire Network (Aggregate)

SNDi value
4.01
Rank in China
1553rd of 1843
Rank in Fujian
55th of 75

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
GuangzeMomaAlcoi / Alcoy

In new street additions, Guangze and Alcoi / Alcoy both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Moma built increasingly disconnected streets over time. Looking at the full network, Moma and Alcoi / Alcoy both became progressively more disconnected, while Guangze grew more disconnected from 1975 through 1976-1990, then improved. Guangze and Moma have been converging in their street-network character since 1975.