Jiuquan: city in Gansu, 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 Jiuquan, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Jiuquan as of 2014, the overall level of street-network sprawl is 2.24, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 3.64, 2.24, 2.05 and 2.41. The disconnectivity of new streets constructed in Jiuquan fell, then rose. In 1991-2000, new street layouts were the most connected.
Quantity of street network construction: The street network in Jiuquan spans a total of 120 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 2.24, which is relatively well-connected.
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 3.64, 2.26, 2.22 and 2.24. The SNDi of the aggregate street network in fell at first, but Jiuquan has worsened in disconnectivity since 2000.
Jiuquan and Gansu follow the same trend in the disconnectivity of their street network constructions. The SNDi for both of these was at its lowest in 1991-2000.
How do development practices in Jiuquan fare in comparison to others in Gansu? Most recently in 2001-2014, street construction in Jiuquan was the 16th-most disconnected out of the 34 cities in Gansu. Its position in the ranks since 1975 has fallen; relative to other cities in Gansu, street construction in Jiuquan has become more connected. Jiuquan ranked 6th in 1975, 20th in 1976-1990, 11th in 1991-2000 and 16th in 2001-2014.
Jiuquan and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Jiuquan was at its lowest in 1991-2000, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in Jiuquan fare in comparison to others in China? Most recently in 2001-2014, street construction in Jiuquan was the 535th-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 Jiuquan has become more connected. Jiuquan ranked 141st in 1975, 554th in 1976-1990, 477th in 1991-2000 and 535th in 2001-2014.
Jiuquan and Gansu do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jiuquan was at its lowest in 1991-2000, while the SNDi of street constructions in Gansu fell steadily.
To date, Jiuquan is the 20th-most disconnected out of the 34 cities in Gansu. Its position in the ranks since 1975 has fallen; relative to other cities in Gansu, the street network in Jiuquan has become more connected. Jiuquan ranked 6th in 1975, 20th in 1976-1990, 19th in 1991-2000 and 20th in 2001-2014.
Jiuquan and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jiuquan was at its lowest in 1991-2000, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Jiuquan is the 603rd-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 Jiuquan has become more connected. Jiuquan ranked 141st in 1975, 548th in 1976-1990, 563rd in 1991-2000 and 603rd in 2001-2014.
As of 2015, Jiuquan had a built-up area of 13.73 square kilometers, and a population of 195764 people.
These are some other cities with approximately the same population: