Longnan: 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 Longnan, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Longnan as of 2014, the overall level of street-network sprawl is 2.48, which is in the 40th to 60th percentile of disconnectedness.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.42, nan, nan and nan. Data was not available in 1976-1990, 1991-2000 and 2001-2014.
Quantity of street network construction: The street network in Longnan spans a total of 129 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 2.42, 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 2.42, 2.42, 2.42 and 2.48. Disconnectivity in Longnan's street network follows a zig-zag trend. In 1991-2000, the city was most disconnected; while it was most connected in 2001-2014.
Longnan 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 Longnan fare in comparison to others in Gansu? out of the 34 cities in Gansu. Longnan ranked 12th in 1975. There was no ranking in 1976-1990, 1991-2000, and 2001-2014 due to unavailable data.
Longnan 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 Longnan fare in comparison to others in China? out of the 1651 cities in China. Longnan ranked 382nd in 1975. There was no ranking in 1976-1990, 1991-2000, and 2001-2014 due to unavailable data.
Longnan and Gansu do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Longnan followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Gansu fell steadily.
To date, Longnan is the 17th-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 Longnan has become more connected. Longnan ranked 12th in 1975, 16th in 1976-1990, 17th in 1991-2000 and 17th in 2001-2014.
Longnan and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Longnan followed a zig-zag trend with an overall increase, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Longnan is the 484th-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 Longnan has become more connected. Longnan ranked 382nd in 1975, 469th in 1976-1990, 470th in 1991-2000 and 484th in 2001-2014.
As of 2015, Longnan had a built-up area of 5.04 square kilometers, and a population of 106248 people.
These are some other cities with approximately the same population: