Wannian: city in Jiangxi, 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 Wannian, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Wannian as of 2014, the overall level of street-network sprawl is 1.46, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 0.45, 2.77, 2.79 and 0.48. Street construction in Wannian increased in disconnectivity initially but has since improved. The streets constructed in 1991-2000 were the most disconnected.
Quantity of street network construction: The street network in Wannian spans a total of 126 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 2.77, 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 0.45, 2.61, 2.4 and 1.46. The aggregate street network in Wannian increased in disconnectivity initially,but the trend has turned around after 1990.
Wannian and Jiangxi do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Wannian peaked in 1991-2000, while the SNDi of street constructions in Jiangxi peaked in 1976-1990.
How do development practices in Wannian fare in comparison to others in Jiangxi? Most recently in 2001-2014, street construction in Wannian was the 60th-most disconnected out of the 74 cities in Jiangxi. Its position in the ranks since 1975 has fallen; relative to other cities in Jiangxi, street construction in Wannian has become more connected. Wannian ranked 53rd in 1975, 26th in 1976-1990, 19th in 1991-2000 and 60th in 2001-2014.
Wannian and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Wannian peaked in 1991-2000, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in Wannian fare in comparison to others in China? Most recently in 2001-2014, street construction in Wannian was the 1176th-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 Wannian has become more connected. Wannian ranked 1009th in 1975, 379th in 1976-1990, 280th in 1991-2000 and 1176th in 2001-2014.
Wannian and Jiangxi follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these peaked in 1976-1990.
To date, Wannian is the 53rd-most disconnected out of the 74 cities in Jiangxi. Its position in the ranks since 1975 has not changed. Wannian ranked 53rd in 1975, 20th in 1976-1990, 26th in 1991-2000 and 53rd in 2001-2014.
Wannian and China follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these peaked in 1976-1990.
To date, Wannian is the 974th-most disconnected out of the 1651 cities in China. Its position in the ranks since 1975 has risen; relative to other cities in China, the street network in Wannian has become more disconnected. Wannian ranked 1009th in 1975, 399th in 1976-1990, 478th in 1991-2000 and 974th in 2001-2014.
As of 2015, Wannian had a built-up area of 8.14 square kilometers, and a population of 95434 people.
These are some other cities with approximately the same population: