Jiahe: city in Hunan, 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 Jiahe, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Jiahe as of 2014, the overall level of street-network sprawl is 0.92, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 0.41, 1.23, 0.46 and 4.23. Disconnectivity in street construction in Jiahe 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 Jiahe spans a total of 43 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 1.23, 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 0.41, 1.01, 0.7 and 0.92. Disconnectivity in Jiahe's street network follows a zig-zag trend. In 1975, the city was most disconnected; while it was most connected in 1976-1990.
Jiahe and Hunan 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 Jiahe fare in comparison to others in Hunan? Most recently in 2001-2014, street construction in Jiahe was the 10th-most disconnected out of the 95 cities in Hunan. Its position in the ranks since 1975 has risen; relative to other cities in Hunan, street construction in Jiahe has become more disconnected. Jiahe ranked 68th in 1975, 64th in 1976-1990, 55th in 1991-2000 and 10th in 2001-2014.
Jiahe 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 Jiahe fare in comparison to others in China? Most recently in 2001-2014, street construction in Jiahe was the 167th-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 Jiahe has become more disconnected. Jiahe ranked 1024th in 1975, 990th in 1976-1990, 959th in 1991-2000 and 167th in 2001-2014.
Jiahe and Hunan do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jiahe followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Hunan peaked in 1976-1990.
To date, Jiahe is the 81st-most disconnected out of the 95 cities in Hunan. Its position in the ranks since 1975 has fallen; relative to other cities in Hunan, the street network in Jiahe has become more connected. Jiahe ranked 68th in 1975, 73rd in 1976-1990, 81st in 1991-2000 and 81st in 2001-2014.
Jiahe and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jiahe followed a zig-zag trend with an overall increase, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Jiahe is the 1262nd-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 Jiahe has become more connected. Jiahe ranked 1024th in 1975, 1126th in 1976-1990, 1286th in 1991-2000 and 1262nd in 2001-2014.
As of 2015, Jiahe had a built-up area of 3.78 square kilometers, and a population of 52809 people.
These are some other cities with approximately the same population: