南口镇: city in Beijing, 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 南口镇, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in 南口镇 as of 2014, the overall level of street-network sprawl is 3.17, 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 3.13, 3.14, 1.2 and 3.55. Disconnectivity in street construction in 南口镇 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 南口镇 spans a total of 87 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 3.13, 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 3.13, 3.14, 3.12 and 3.17. Disconnectivity in 南口镇's street network follows a zig-zag trend. In 1991-2000, the city was most disconnected; while it was most connected in 2001-2014.
南口镇 and Beijing do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in 南口镇 followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Beijing rose steadily.
How do development practices in 南口镇 fare in comparison to others in Beijing? Most recently in 2001-2014, street construction in 南口镇 was the 1st-most disconnected out of the 9 cities in Beijing. Its position in the ranks since 1975 has not changed. 南口镇 ranked 1st in 1975, 2nd in 1976-1990, 6th in 1991-2000 and 1st in 2001-2014.
南口镇 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 南口镇 fare in comparison to others in China? Most recently in 2001-2014, street construction in 南口镇 was the 260th-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 南口镇 has become more connected. 南口镇 ranked 222nd in 1975, 279th in 1976-1990, 723rd in 1991-2000 and 260th in 2001-2014.
南口镇 and Beijing do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in 南口镇 followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Beijing rose steadily.
To date, 南口镇 is the 1st-most disconnected out of the 9 cities in Beijing. Its position in the ranks since 1975 has not changed. 南口镇 ranked 1st in 1975, 1st in 1976-1990, 1st in 1991-2000 and 1st in 2001-2014.
南口镇 and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in 南口镇 followed a zig-zag trend with an overall increase, while the SNDi of street constructions in China peaked in 1976-1990.
To date, 南口镇 is the 242nd-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 南口镇 has become more connected. 南口镇 ranked 222nd in 1975, 245th in 1976-1990, 233rd in 1991-2000 and 242nd in 2001-2014.
As of 2015, 南口镇 had a built-up area of 9.91 square kilometers, and a population of 61039 people.
These are some other cities with approximately the same population: