Qionglai: 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 Qionglai, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Qionglai as of 2014, the overall level of street-network sprawl is 2.01, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.42, 1.45, 1.1 and 2.66. Disconnectivity in street construction in Qionglai follows a zig-zag trend. In 1991-2000, street construction was most disconnected, while construction was most connected in 2001-2014.
Quantity of street network construction: The street network in Qionglai spans a total of 166 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 2.66, 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 1.42, 1.44, 1.39 and 2.01. Disconnectivity in Qionglai's street network follows a zig-zag trend. In 1991-2000, the city was most disconnected; while it was most connected in 2001-2014.
Qionglai and Sichuan do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Qionglai followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Sichuan was at its lowest in 1991-2000.
How do development practices in Qionglai fare in comparison to others in Sichuan? Most recently in 2001-2014, street construction in Qionglai was the 36th-most disconnected out of the 102 cities in Sichuan. Its position in the ranks since 1975 has risen; relative to other cities in Sichuan, street construction in Qionglai has become more disconnected. Qionglai ranked 58th in 1975, 54th in 1976-1990, 46th in 1991-2000 and 36th in 2001-2014.
Qionglai and China follow the same trend in the disconnectivity of their street network constructions. The SNDi for both of these followed a zig-zag trend with an overall increase.
How do development practices in Qionglai fare in comparison to others in China? Most recently in 2001-2014, street construction in Qionglai was the 467th-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 Qionglai has become more disconnected. Qionglai ranked 683rd in 1975, 896th in 1976-1990, 750th in 1991-2000 and 467th in 2001-2014.
Qionglai and Sichuan do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Qionglai followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Sichuan was at its lowest in 1991-2000.
To date, Qionglai is the 57th-most disconnected out of the 102 cities in Sichuan. Its position in the ranks since 1975 has risen; relative to other cities in Sichuan, the street network in Qionglai has become more disconnected. Qionglai ranked 58th in 1975, 63rd in 1976-1990, 68th in 1991-2000 and 57th in 2001-2014.
Qionglai and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Qionglai followed a zig-zag trend with an overall increase, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Qionglai is the 697th-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 Qionglai has become more connected. Qionglai ranked 683rd in 1975, 910th in 1976-1990, 962nd in 1991-2000 and 697th in 2001-2014.
As of 2015, Qionglai had a built-up area of 10.29 square kilometers, and a population of 208140 people.
These are some other cities with approximately the same population: