De'an: 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 De'an, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in De'an as of 2014, the overall level of street-network sprawl is 1.89, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.45, 1.25, 2.01 and 2.71. The disconnectivity of new streets constructed in De'an fell, then rose. In 1976-1990, new street layouts were the most connected.
Quantity of street network construction: The street network in De'an spans a total of 111 kilometers. The period with the greatest volume of street construction was 1976-1990. These roads have an SNDi of 1.25, 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 1.45, 1.32, 1.55 and 1.89. The SNDi of the aggregate street network in fell at first, but De'an has worsened in disconnectivity since 1990.
De'an and Jiangxi do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in De'an was at its lowest in 1976-1990, while the SNDi of street constructions in Jiangxi peaked in 1976-1990.
How do development practices in De'an fare in comparison to others in Jiangxi? Most recently in 2001-2014, street construction in De'an was the 21st-most disconnected out of the 74 cities in Jiangxi. Its position in the ranks since 1975 has risen; relative to other cities in Jiangxi, street construction in De'an has become more disconnected. De'an ranked 38th in 1975, 52nd in 1976-1990, 31st in 1991-2000 and 21st in 2001-2014.
De'an and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in De'an was at its lowest in 1976-1990, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in De'an fare in comparison to others in China? Most recently in 2001-2014, street construction in De'an was the 454th-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 De'an has become more disconnected. De'an ranked 675th in 1975, 979th in 1976-1990, 488th in 1991-2000 and 454th in 2001-2014.
De'an and Jiangxi do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in De'an was at its lowest in 1976-1990, while the SNDi of street constructions in Jiangxi peaked in 1976-1990.
To date, De'an is the 40th-most disconnected out of the 74 cities in Jiangxi. Its position in the ranks since 1975 has fallen; relative to other cities in Jiangxi, the street network in De'an has become more connected. De'an ranked 38th in 1975, 50th in 1976-1990, 50th in 1991-2000 and 40th in 2001-2014.
De'an and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in De'an was at its lowest in 1976-1990, while the SNDi of street constructions in China peaked in 1976-1990.
To date, De'an is the 753rd-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 De'an has become more connected. De'an ranked 675th in 1975, 985th in 1976-1990, 870th in 1991-2000 and 753rd in 2001-2014.
As of 2015, De'an had a built-up area of 7.59 square kilometers, and a population of 62406 people.
These are some other cities with approximately the same population: