Comparisons
Hainan vs. the other two most closely populated regions in China: Ningxia Hui and Qinghai
Hainan in context: Street-network sprawl of new development
The level of street-network sprawl in new development in Hainan followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in Hainan, we can consider three of its most populous cities: Xiuying District, Sanya and Danzhou City. Out of the three cities, Xiuying District and Sanya do not follow the same trend as the region. The level of street-network sprawl in new development in Xiuying District rose steadily. The level of street-network sprawl in new development in Sanya rose steadily.
How do development practices in Hainan fare in comparison to others in China? Most recently in 2006-2020, street construction in Hainan was the 30th-most disconnected out of the 31 regions in China. Its position in the ranks since 1975 has fallen; relative to other regions in China, street construction in Hainan has become more connected. Hainan ranked 21st in 1975, 19th in 1976-1990, 14th in 1991-2005 and 30th in 2006-2020.
Hainan in context: Aggregate street-network sprawl
As of 2020, the city with the most disconnected street network in Hainan is Huanglong with an SNDi of 5.74, which is very sprawly. Conversely, the most connected city is Changjiang Li Autonomous County with an SNDi of 2.2, which is well-connected. See trends for these cities: Changjiang Li Autonomous County, Huanglong
The level of street-network sprawl in the aggregate network in Hainan followed a zig-zag trend with an overall increase. To get a sense of how the aggregate street network has changed in Hainan, we can consider three of its most populous cities: Xiuying District, Sanya and Danzhou City. Out of the three cities, Xiuying District and Sanya do not follow the same trend as the region. The level of street-network sprawl in the aggregate network in Xiuying District rose steadily. The level of street-network sprawl in the aggregate network in Sanya rose steadily.
To date, Hainan is the 23rd-most disconnected out of the 31 regions in China. Its position in the ranks since 1975 has fallen; relative to other regions in China, the street network in Hainan has become more connected. Hainan ranked 21st in 1975, 22nd in 1976-1990, 22nd in 1991-2005 and 23rd in 2006-2020.