Guiyang: city in Guizhou, 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 Guiyang, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Guiyang as of 2014, the overall level of street-network sprawl is 2.55, 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, 3.06, 2.69 and 2.54. Street construction in Guiyang 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 Guiyang spans a total of 1608 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 2.54, 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, 2.55, 2.55 and 2.55. The aggregate street network in Guiyang increased in disconnectivity initially,but the trend has turned around after 2000.
Guiyang and Guizhou do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Guiyang peaked in 1976-1990, while the SNDi of street constructions in Guizhou peaked in 1991-2000.
How do development practices in Guiyang fare in comparison to others in Guizhou? Most recently in 2001-2014, street construction in Guiyang was the 17th-most disconnected out of the 42 cities in Guizhou. Its position in the ranks since 1975 has fallen; relative to other cities in Guizhou, street construction in Guiyang has become more connected. Guiyang ranked 9th in 1975, 7th in 1976-1990, 10th in 1991-2000 and 17th in 2001-2014.
Guiyang and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Guiyang peaked in 1976-1990, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in Guiyang fare in comparison to others in China? Most recently in 2001-2014, street construction in Guiyang was the 501st-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 Guiyang has become more connected. Guiyang ranked 361st in 1975, 294th in 1976-1990, 307th in 1991-2000 and 501st in 2001-2014.
Guiyang and Guizhou follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these peaked in 1991-2000.
To date, Guiyang is the 18th-most disconnected out of the 42 cities in Guizhou. Its position in the ranks since 1975 has fallen; relative to other cities in Guizhou, the street network in Guiyang has become more connected. Guiyang ranked 9th in 1975, 12th in 1976-1990, 16th in 1991-2000 and 18th in 2001-2014.
Guiyang and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Guiyang peaked in 1991-2000, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Guiyang is the 455th-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 Guiyang has become more connected. Guiyang ranked 361st in 1975, 428th in 1976-1990, 415th in 1991-2000 and 455th in 2001-2014.
As of 2015, Guiyang had a built-up area of 113.74 square kilometers, and a population of 2531220 people.
These are some other cities with approximately the same population: