Yanjin: city in Henan, 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 Yanjin, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Yanjin as of 2014, the overall level of street-network sprawl is 0.98, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.99, 0.78, 0.24 and -0.88. In each period, new street development in Yanjin steadily grows more connected than in the last.
Quantity of street network construction: The street network in Yanjin spans a total of 137 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 0.78, 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 1.99, 1.38, 1.34 and 0.98. Overall, the SNDi of the aggregate street network has fallen: the street network in Yanjin has become more connected.
Yanjin and Henan do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Yanjin fell steadily, while the SNDi of street constructions in Henan peaked in 1991-2000.
How do development practices in Yanjin fare in comparison to others in Henan? Most recently in 2001-2014, street construction in Yanjin was the 109th-most disconnected out of the 118 cities in Henan. Its position in the ranks since 1975 has fallen; relative to other cities in Henan, street construction in Yanjin has become more connected. Yanjin ranked 16th in 1975, 60th in 1976-1990, 64th in 1991-2000 and 109th in 2001-2014.
Yanjin and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Yanjin fell steadily, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in Yanjin fare in comparison to others in China? Most recently in 2001-2014, street construction in Yanjin was the 1385th-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 Yanjin has become more connected. Yanjin ranked 503rd in 1975, 1144th in 1976-1990, 1030th in 1991-2000 and 1385th in 2001-2014.
Yanjin and Henan do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Yanjin fell steadily, while the SNDi of street constructions in Henan peaked in 1976-1990.
To date, Yanjin is the 56th-most disconnected out of the 118 cities in Henan. Its position in the ranks since 1975 has fallen; relative to other cities in Henan, the street network in Yanjin has become more connected. Yanjin ranked 16th in 1975, 35th in 1976-1990, 41st in 1991-2000 and 56th in 2001-2014.
Yanjin and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Yanjin fell steadily, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Yanjin is the 1228th-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 Yanjin has become more connected. Yanjin ranked 503rd in 1975, 949th in 1976-1990, 987th in 1991-2000 and 1228th in 2001-2014.
As of 2015, Yanjin had a built-up area of 11.46 square kilometers, and a population of 65356 people.
These are some other cities with approximately the same population: