Guangzhou: city in Guangdong, 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 Guangzhou, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Guangzhou as of 2014, the overall level of street-network sprawl is 2.69, 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 2.47, 2.7, 2.67 and 3.05. Disconnectivity in street construction in Guangzhou follows a zig-zag trend. In 1975, street construction was most disconnected, while construction was most connected in 2001-2014.
Quantity of street network construction: The street network in Guangzhou spans a total of 37479 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 2.7, 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 2.47, 2.65, 2.65 and 2.69. Overall, the SNDi of the aggregate street network has risen: the street network in Guangzhou has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.18 points, but between 1991-2000 and 2001-2014, it rose by just 0.04.
Guangzhou and Guangdong do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Guangzhou followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Guangdong was at its lowest in 1991-2000.
How do development practices in Guangzhou fare in comparison to others in Guangdong? Most recently in 2001-2014, street construction in Guangzhou was the 33rd-most disconnected out of the 109 cities in Guangdong. Its position in the ranks since 1975 has fallen; relative to other cities in Guangdong, street construction in Guangzhou has become more connected. Guangzhou ranked 32nd in 1975, 39th in 1976-1990, 20th in 1991-2000 and 33rd in 2001-2014.
Guangzhou and China follow the same trend in the disconnectivity of their street network constructions. The SNDi for both of these followed a zig-zag trend with an overall increase.
How do development practices in Guangzhou fare in comparison to others in China? Most recently in 2001-2014, street construction in Guangzhou was the 368th-most disconnected out of the 1651 cities in China. Its position in the ranks since 1975 has fallen; relative to other cities in China, street construction in Guangzhou has become more connected. Guangzhou ranked 363rd in 1975, 396th in 1976-1990, 312th in 1991-2000 and 368th in 2001-2014.
Guangzhou and Guangdong do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Guangzhou rose steadily, while the SNDi of street constructions in Guangdong was at its lowest in 1991-2000.
To date, Guangzhou is the 33rd-most disconnected out of the 109 cities in Guangdong. Its position in the ranks since 1975 has fallen; relative to other cities in Guangdong, the street network in Guangzhou has become more connected. Guangzhou ranked 32nd in 1975, 37th in 1976-1990, 33rd in 1991-2000 and 33rd in 2001-2014.
Guangzhou and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Guangzhou rose steadily, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Guangzhou is the 406th-most disconnected out of the 1651 cities in China. Its position in the ranks since 1975 has fallen; relative to other cities in China, the street network in Guangzhou has become more connected. Guangzhou ranked 363rd in 1975, 385th in 1976-1990, 380th in 1991-2000 and 406th in 2001-2014.
As of 2015, Guangzhou had a built-up area of 2771.37 square kilometers, and a population of 40589878 people.
These are some other cities with approximately the same population: