Jiulongba: city in Sichuan, 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 Jiulongba, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Jiulongba as of 2014, the overall level of street-network sprawl is 1.79, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.62, 2.3, 1.25 and 1.53. The disconnectivity of new streets constructed in Jiulongba fell, then rose. In 1991-2000, new street layouts were the most connected.
Quantity of street network construction: The street network in Jiulongba spans a total of 149 kilometers. The period with the greatest volume of street construction was 2001-2014. These roads have an SNDi of 1.53, 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 2.62, 2.56, 2.0 and 1.79. Overall, the SNDi of the aggregate street network has fallen: the street network in Jiulongba has become more connected. This decrease has quickened: between 1975 and 1976-1990, SNDi fell by 0.06 points, but between 1991-2000 and 2001-2014, it fell by just 0.21.
Jiulongba and Sichuan 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 Jiulongba fare in comparison to others in Sichuan? Most recently in 2001-2014, street construction in Jiulongba was the 61st-most disconnected out of the 102 cities in Sichuan. Its position in the ranks since 1975 has fallen; relative to other cities in Sichuan, street construction in Jiulongba has become more connected. Jiulongba ranked 32nd in 1975, 40th in 1976-1990, 44th in 1991-2000 and 61st in 2001-2014.
Jiulongba and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Jiulongba 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 Jiulongba fare in comparison to others in China? Most recently in 2001-2014, street construction in Jiulongba was the 846th-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 Jiulongba has become more connected. Jiulongba ranked 327th in 1975, 530th in 1976-1990, 696th in 1991-2000 and 846th in 2001-2014.
Jiulongba and Sichuan do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jiulongba fell steadily, while the SNDi of street constructions in Sichuan was at its lowest in 1991-2000.
To date, Jiulongba is the 61st-most disconnected out of the 102 cities in Sichuan. Its position in the ranks since 1975 has fallen; relative to other cities in Sichuan, the street network in Jiulongba has become more connected. Jiulongba ranked 32nd in 1975, 38th in 1976-1990, 51st in 1991-2000 and 61st in 2001-2014.
Jiulongba and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jiulongba fell steadily, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Jiulongba is the 808th-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 Jiulongba has become more connected. Jiulongba ranked 327th in 1975, 420th in 1976-1990, 667th in 1991-2000 and 808th in 2001-2014.
As of 2015, Jiulongba had a built-up area of 5.24 square kilometers, and a population of 151796 people.
These are some other cities with approximately the same population: