Zhangjiachuan: 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 Zhangjiachuan, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Zhangjiachuan as of 2014, the overall level of street-network sprawl is -0.16, which is very well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are nan, nan, -1.7 and 0.88. Data was not available in 1975 and 1976-1990.
Quantity of street network construction: The street network in Zhangjiachuan spans a total of 26 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of nan, which is highly disconnected.
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 nan, nan, -1.7 and -0.16. Data was not available in 1975 and 1976-1990.
Zhangjiachuan and Gansu do not follow the same trend in the disconnectivity of their street network constructions. There was not enough data from the city, while the SNDi of street constructions in Gansu was at its lowest in 1991-2000.
How do development practices in Zhangjiachuan fare in comparison to others in Gansu? Most recently in 2001-2014, street construction in Zhangjiachuan was the 27th-most disconnected out of the 34 cities in Gansu. Its position in the ranks since 1975 has risen; relative to other cities in Gansu, street construction in Zhangjiachuan has become more disconnected. Zhangjiachuan ranked 29th in 1991-2000 and 27th in 2001-2014. There was no ranking in 1975 and 1976-1990 due to unavailable data.
Zhangjiachuan and China do not follow the same trend in the disconnectivity of their street network constructions. There was not enough data from the city, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in Zhangjiachuan fare in comparison to others in China? Most recently in 2001-2014, street construction in Zhangjiachuan was the 1047th-most disconnected out of the 1651 cities in China. Its position in the ranks since 1975 has risen; relative to other cities in China, street construction in Zhangjiachuan has become more disconnected. Zhangjiachuan ranked 1293rd in 1991-2000 and 1047th in 2001-2014. There was no ranking in 1975 and 1976-1990 due to unavailable data.
Zhangjiachuan and Gansu do not follow the same trend in the disconnectivity of their aggregate street networks. There was not enough data from the city, while the SNDi of street constructions in Gansu fell steadily.
To date, Zhangjiachuan is the 34th-most disconnected out of the 34 cities in Gansu. Its position in the ranks since 1975 has not changed. Zhangjiachuan ranked 34th in 1991-2000 and 34th in 2001-2014. There was no ranking in 1975 and 1976-1990 due to unavailable data.
Zhangjiachuan and China do not follow the same trend in the disconnectivity of their aggregate street networks. There was not enough data from the city, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Zhangjiachuan is the 1587th-most disconnected out of the 1651 cities in China. Its position in the ranks since 1975 has risen; relative to other cities in China, the street network in Zhangjiachuan has become more disconnected. Zhangjiachuan ranked 1626th in 1991-2000 and 1587th in 2001-2014. There was no ranking in 1975 and 1976-1990 due to unavailable data.
As of 2015, Zhangjiachuan had a built-up area of 1.84 square kilometers, and a population of 50007 people.
These are some other cities with approximately the same population: