Hengyang: 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 Hengyang, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Hengyang as of 2014, the overall level of street-network sprawl is 3.56, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 4.04, 4.03, 2.42 and 2.1. In each period, new street development in Hengyang steadily grows more connected than in the last. This decrease has quickened: between 1975 and 1976-1990, SNDi fell by 0.0 points, but between 1991-2000 and 2001-2014, it fell by just 0.32.
Quantity of street network construction: The street network in Hengyang spans a total of 977 kilometers. The period with the greatest volume of street construction was 1975. These roads have an SNDi of 4.04, which is highly disconnected.
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 4.04, 4.04, 3.66 and 3.56. The aggregate street network in Hengyang increased in disconnectivity initially,but the trend has turned around after 1990.
Hengyang and Hunan do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Hengyang fell steadily, while the SNDi of street constructions in Hunan followed a zig-zag trend with an overall decrease.
Hengyang and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Hengyang fell steadily, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
Hengyang and Hunan follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these peaked in 1976-1990.
Hengyang and China follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these peaked in 1976-1990.
As of 2015, Hengyang had a built-up area of 57.27 square kilometers, and a population of 952975 people.
These are some other cities with approximately the same population: