Hubei: region in China
What exactly constitutes the spatial extent of the city? For these aggregations, we used the Global Human Settlement Layer Urban Center Database (GHS-UCDB) to define the boundaries of the city. These cities -- or urban centers -- cover areas that are densely populated and built-up, and so may extend beyond the spatial borders of these cities that we may be familiar with. The GHS area is shaded in blue.
View Hubei, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Hubei as of 2014, the overall level of street-network sprawl is 3.04, which is in the 40th to 60th percentile of disconnectedness.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.71, 3.34, 3.08 and 3.01. Street construction in Hubei increased in disconnectivity initially but has since improved. The streets constructed in 1976-1990 were the most disconnected.
Quantity of street network construction: The street network in Hubei spans a total of 68436 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 3.01, which is in the 40th to 60th percentile of disconnectedness.
Effect on the aggregate network: New construction in each period adds to the total stock of streets, but does not change streets that have already been built. Therefore, it has a limited effect on the street network as a whole. The SNDis of the aggregate street network in the respective time periods are 2.71, 3.09, 3.08 and 3.04. The aggregate street network in Hubei increased in disconnectivity initially,but the trend has turned around after 1990.
The level of street-network sprawl in new development in Hubei peaked in 1976-1990. To get a sense of how street development has changed in Hubei, we can consider three of its most populous cities: Wuhan, Fancheng and Huangshi. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Wuhan followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Fancheng peaked in 1991-2000. The level of street-network sprawl in new development in Huangshi was at its lowest in 1991-2000.
How do development practices in Hubei fare in comparison to others in China? Most recently in 2001-2014, street construction in Hubei was the 19th-most disconnected out of the 34 regions in China. Its position in the ranks since 1975 has risen; relative to other regions in China, street construction in Hubei has become more disconnected. Hubei ranked 21st in 1975, 13th in 1976-1990, 15th in 1991-2000 and 19th in 2001-2014.
As of 2014, the city with the most disconnected street network in Hubei is Shishou with an SNDi of 6.46, which is highly disconnected. Conversely, the most connected city is Yingshan with an SNDi of -1.79, which is very well-connected. See trends for these cities: Yingshan, Shishou
The level of street-network sprawl in the aggregate network in Hubei peaked in 1976-1990. To get a sense of how the aggregate street network has changed in Hubei, we can consider three of its most populous cities: Wuhan, Fancheng and Huangshi. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Wuhan rose steadily. The level of street-network sprawl in the aggregate network in Fancheng peaked in 1991-2000. The level of street-network sprawl in the aggregate network in Huangshi fell steadily.
To date, Hubei is the 19th-most disconnected out of the 34 regions in China. Its position in the ranks since 1975 has risen; relative to other regions in China, the street network in Hubei has become more disconnected. Hubei ranked 21st in 1975, 18th in 1976-1990, 17th in 1991-2000 and 19th in 2001-2014.
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