Sihui in context: Street-network sprawl trends

Sihui 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
SihuiGuangdong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sihui plotted against Guangdong and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Sihui's incremental SNDi rose from 2.42 to 3.44 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sihui ranked 31st out of 133 cities in Guangdong and 628th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.44
Rank in China
1124th of 1843
Rank in Guangdong
53rd of 133

Entire Network (Aggregate)

SNDi value
2.55
Rank in China
628th of 1843
Rank in Guangdong
31st of 133

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
SihuiPorlamarKanyamazane

Sihui, Porlamar, and Kanyamazane all fluctuated in its street-construction patterns in new street construction. For the full network, Sihui and Kanyamazane both became progressively more disconnected, while Porlamar fluctuated in connectivity. Sihui and Porlamar have been growing further apart in their street-network character since 1975.