Yifeng: 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 Yifeng, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Yifeng as of 2014, the overall level of street-network sprawl is 3.78, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 4.89, 2.07, 9.67 and 0.7. Disconnectivity in street construction in Yifeng follows a zig-zag trend. In 2001-2014, street construction was most disconnected, while construction was most connected in 1991-2000.
Quantity of street network construction: The street network in Yifeng spans a total of 58 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 4.89, 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 4.89, 3.99, 4.2 and 3.78. Disconnectivity in Yifeng's street network follows a zig-zag trend. In 2001-2014, the city was most disconnected; while it was most connected in 1975.
Yifeng and Jiangxi do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Yifeng followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in Jiangxi peaked in 1976-1990.
How do development practices in Yifeng fare in comparison to others in Jiangxi? Most recently in 2001-2014, street construction in Yifeng was the 56th-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 Yifeng has become more connected. Yifeng ranked 1st in 1975, 36th in 1976-1990, 1st in 1991-2000 and 56th in 2001-2014.
Yifeng and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Yifeng followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in Yifeng fare in comparison to others in China? Most recently in 2001-2014, street construction in Yifeng was the 1112th-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 Yifeng has become more connected. Yifeng ranked 58th in 1975, 638th in 1976-1990, 6th in 1991-2000 and 1112th in 2001-2014.
Yifeng and Jiangxi do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Yifeng followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in Jiangxi peaked in 1976-1990.
To date, Yifeng is the 3rd-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 Yifeng has become more connected. Yifeng ranked 1st in 1975, 4th in 1976-1990, 4th in 1991-2000 and 3rd in 2001-2014.
Yifeng and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Yifeng followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Yifeng is the 131st-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 Yifeng has become more connected. Yifeng ranked 58th in 1975, 100th in 1976-1990, 76th in 1991-2000 and 131st in 2001-2014.
As of 2015, Yifeng had a built-up area of 4.63 square kilometers, and a population of 51129 people.
These are some other cities with approximately the same population: