Jianyang: 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 Jianyang, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Jianyang as of 2014, the overall level of street-network sprawl is 1.2, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.91, 1.14, 1.89 and 0.75. Disconnectivity in street construction in Jianyang follows a zig-zag trend. In 2001-2014, street construction was most disconnected, while construction was most connected in 1975.
Quantity of street network construction: The street network in Jianyang spans a total of 219 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 0.75, 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 1.91, 1.54, 1.56 and 1.2. Disconnectivity in Jianyang's street network follows a zig-zag trend. In 2001-2014, the city was most disconnected; while it was most connected in 1975.
Jianyang and Sichuan do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Jianyang followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in Sichuan was at its lowest in 1991-2000.
How do development practices in Jianyang fare in comparison to others in Sichuan? Most recently in 2001-2014, street construction in Jianyang was the 72nd-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 Jianyang has become more connected. Jianyang ranked 46th in 1975, 61st in 1976-1990, 34th in 1991-2000 and 72nd in 2001-2014.
Jianyang and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Jianyang followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in Jianyang fare in comparison to others in China? Most recently in 2001-2014, street construction in Jianyang was the 1094th-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 Jianyang has become more connected. Jianyang ranked 525th in 1975, 1019th in 1976-1990, 525th in 1991-2000 and 1094th in 2001-2014.
Jianyang and Sichuan do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jianyang followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in Sichuan was at its lowest in 1991-2000.
To date, Jianyang is the 79th-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 Jianyang has become more connected. Jianyang ranked 46th in 1975, 59th in 1976-1990, 60th in 1991-2000 and 79th in 2001-2014.
Jianyang and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jianyang followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Jianyang is the 1115th-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 Jianyang has become more connected. Jianyang ranked 525th in 1975, 868th in 1976-1990, 868th in 1991-2000 and 1115th in 2001-2014.
As of 2015, Jianyang had a built-up area of 6.47 square kilometers, and a population of 219894 people.
These are some other cities with approximately the same population: