Danzhou City in context: Street-network sprawl trends

Danzhou City 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
Danzhou CityHainan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Danzhou City plotted against Hainan and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Danzhou City's incremental SNDi rose from 2.18 to 2.62 between 1991-2005 and 2006-2020. In terms of the aggregate network, Danzhou City ranked 2nd out of 17 cities in Hainan and 507th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.62
Rank in China
602nd of 1843
Rank in Hainan
4th of 17

Entire Network (Aggregate)

SNDi value
2.39
Rank in China
507th of 1843
Rank in Hainan
2nd 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
Danzhou CityKafr Al-ZaiyatTacna

In new street additions, Danzhou City fluctuated in its street-construction patterns, while Kafr Al-Zaiyat built increasingly disconnected streets over time and Tacna built increasingly connected streets over time. For the full network, Danzhou City fluctuated in connectivity, while Kafr Al-Zaiyat became progressively more disconnected and Tacna became progressively more connected. Danzhou City and Kafr Al-Zaiyat have been growing further apart in their street-network character since 1975.