威宁县: city in Guizhou, 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 威宁县, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in 威宁县 as of 2014, the overall level of street-network sprawl is 2.63, which is in the 40th to 60th percentile of disconnectedness.
Trends in street network construction: The SNDis of street construction for the respective time periods are nan, 3.24, 1.44 and 1.97. Data was not available in 1975.
Quantity of street network construction: The street network in 威宁县 spans a total of 61 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of nan, 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 nan, 3.24, 2.76 and 2.63. Data was not available in 1975.
威宁县 and Guizhou do not follow the same trend in the disconnectivity of their street network constructions. There was not enough data from the city, while the SNDi of street constructions in Guizhou peaked in 1991-2000.
How do development practices in 威宁县 fare in comparison to others in Guizhou? Most recently in 2001-2014, street construction in 威宁县 was the 20th-most disconnected out of the 42 cities in Guizhou. Its position in the ranks since 1975 has fallen; relative to other cities in Guizhou, street construction in 威宁县 has become more connected. 威宁县 ranked 6th in 1976-1990, 19th in 1991-2000 and 20th in 2001-2014. There was no ranking in 1975 due to unavailable data.
威宁县 and China do not follow the same trend in the disconnectivity of their street network constructions. There was not enough data from the city, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in 威宁县 fare in comparison to others in China? Most recently in 2001-2014, street construction in 威宁县 was the 676th-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 威宁县 has become more connected. 威宁县 ranked 258th in 1976-1990, 644th in 1991-2000 and 676th in 2001-2014. There was no ranking in 1975 due to unavailable data.
威宁县 and Guizhou do not follow the same trend in the disconnectivity of their aggregate street networks. There was not enough data from the city, while the SNDi of street constructions in Guizhou peaked in 1991-2000.
To date, 威宁县 is the 16th-most disconnected out of the 42 cities in Guizhou. Its position in the ranks since 1975 has fallen; relative to other cities in Guizhou, the street network in 威宁县 has become more connected. 威宁县 ranked 8th in 1976-1990, 13th in 1991-2000 and 16th in 2001-2014. There was no ranking in 1975 due to unavailable data.
威宁县 and China do not follow the same trend in the disconnectivity of their aggregate street networks. There was not enough data from the city, while the SNDi of street constructions in China peaked in 1976-1990.
To date, 威宁县 is the 426th-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 威宁县 has become more connected. 威宁县 ranked 222nd in 1976-1990, 341st in 1991-2000 and 426th in 2001-2014. There was no ranking in 1975 due to unavailable data.
As of 2015, 威宁县 had a built-up area of 4.34 square kilometers, and a population of 130182 people.
These are some other cities with approximately the same population: