Qionghai in context: Street-network sprawl trends

Qionghai in context

33.544.5<19751976–19901991–20052006–2020SNDi of street additions
33.544.5<19751976–19901991–20052006–2020SNDi of entire street network
QionghaiHainan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Qionghai plotted against Hainan and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Qionghai's incremental SNDi rose from 3.05 to 4.0 between 1991-2005 and 2006-2020. In terms of the aggregate network, Qionghai ranked 8th out of 17 cities in Hainan and 1305th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.0
Rank in China
1400th of 1843
Rank in Hainan
11th of 17

Entire Network (Aggregate)

SNDi value
3.39
Rank in China
1305th of 1843
Rank in Hainan
8th of 17

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
QionghaiEl-UsayratKafanchan

While El-Usayrat and Kafanchan both built increasingly disconnected streets over time, Qionghai fluctuated in its street-construction patterns in new street additions. Looking at the full network, El-Usayrat and Kafanchan both became progressively more disconnected, while Qionghai fluctuated in connectivity. Qionghai and El-Usayrat have been growing further apart in their street-network character since 1975.