Luannan: city in Hebei, 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 Luannan, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Luannan as of 2014, the overall level of street-network sprawl is 1.42, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 0.63, 1.73, 1.64 and 2.05. Disconnectivity in street construction in Luannan follows a zig-zag trend. In 1975, street construction was most disconnected, while construction was most connected in 2001-2014.
Quantity of street network construction: The street network in Luannan spans a total of 133 kilometers. The period with the greatest volume of street construction was 2001-2014. These roads have an SNDi of 2.05, 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 0.63, 1.25, 1.31 and 1.42. Overall, the SNDi of the aggregate street network has risen: the street network in Luannan has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.62 points, but between 1991-2000 and 2001-2014, it rose by just 0.11.
Luannan and Hebei 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 Luannan fare in comparison to others in Hebei? Most recently in 2001-2014, street construction in Luannan was the 36th-most disconnected out of the 99 cities in Hebei. Its position in the ranks since 1975 has risen; relative to other cities in Hebei, street construction in Luannan has become more disconnected. Luannan ranked 71st in 1975, 53rd in 1976-1990, 28th in 1991-2000 and 36th in 2001-2014.
Luannan 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 Luannan fare in comparison to others in China? Most recently in 2001-2014, street construction in Luannan was the 654th-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 Luannan has become more disconnected. Luannan ranked 946th in 1975, 766th in 1976-1990, 596th in 1991-2000 and 654th in 2001-2014.
Luannan and Hebei do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Luannan rose steadily, while the SNDi of street constructions in Hebei peaked in 1976-1990.
To date, Luannan is the 60th-most disconnected out of the 99 cities in Hebei. Its position in the ranks since 1975 has risen; relative to other cities in Hebei, the street network in Luannan has become more disconnected. Luannan ranked 71st in 1975, 67th in 1976-1990, 64th in 1991-2000 and 60th in 2001-2014.
Luannan and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Luannan rose steadily, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Luannan is the 1002nd-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 Luannan has become more connected. Luannan ranked 946th in 1975, 1019th in 1976-1990, 1003rd in 1991-2000 and 1002nd in 2001-2014.
As of 2015, Luannan had a built-up area of 18.29 square kilometers, and a population of 84123 people.
These are some other cities with approximately the same population: