Shantou in context: Street-network sprawl trends

Shantou in context

3.544.55<19751976–19901991–20052006–2020SNDi of street additions
3.544.55<19751976–19901991–20052006–2020SNDi of entire street network
ShantouGuangdong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shantou plotted against Guangdong and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Shantou's incremental SNDi rose from 3.7 to 4.91 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shantou ranked 95th out of 133 cities in Guangdong and 1500th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.91
Rank in China
1620th of 1843
Rank in Guangdong
102nd of 133

Entire Network (Aggregate)

SNDi value
3.83
Rank in China
1500th of 1843
Rank in Guangdong
95th of 133

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

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
ShantouLimaLondon

In new street additions, Shantou and Lima both fluctuated in its street-construction patterns, while London built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Shantou and London both became progressively more disconnected, while Lima fluctuated in connectivity. Shantou and London have been growing further apart in their street-network character since 1975.