Gangtou in context: Street-network sprawl trends

Gangtou in context

345678<19751976–19901991–20052006–2020SNDi of street additions
345678<19751976–19901991–20052006–2020SNDi of entire street network
GangtouFujian (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Gangtou plotted against Fujian and China. The SNDi of new construction in Gangtou fell steadily, compared to Fujian which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Gangtou's incremental SNDi fell from 6.42 to 5.55 between 1991-2005 and 2006-2020. In terms of the aggregate network, Gangtou ranked 71st out of 75 cities in Fujian and 1815th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
5.55
Rank in China
1711th of 1843
Rank in Fujian
62nd of 75

Entire Network (Aggregate)

SNDi value
6.71
Rank in China
1815th of 1843
Rank in Fujian
71st of 75

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

What about similarly populated cities?

345678<19751976–19901991–20052006–2020SNDi of street additions
345678<19751976–19901991–20052006–2020SNDi of entire street network
GangtouCataguasesKatrisarai

In new street additions, Gangtou built increasingly connected streets over time, while Cataguases fluctuated in its street-construction patterns and Katrisarai fluctuated in its street-construction patterns. For the full network, Gangtou became progressively more connected, while Cataguases became progressively more disconnected and Katrisarai fluctuated in connectivity. Gangtou and Cataguases have been converging in their street-network character since 1975.