Yanchi: city in Ningxia Hui, 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 Yanchi, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Yanchi as of 2014, the overall level of street-network sprawl is 1.07, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are nan, -1.22, -0.4 and 1.27. Data was not available in 1975.
Quantity of street network construction: The street network in Yanchi spans a total of 144 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, -1.22, -0.51 and 1.07. Data was not available in 1975.
Yanchi and Ningxia Hui 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 Ningxia Hui peaked in 1976-1990.
How do development practices in Yanchi fare in comparison to others in Ningxia Hui? Most recently in 2001-2014, street construction in Yanchi was the 6th-most disconnected out of the 15 cities in Ningxia Hui. Its position in the ranks since 1975 has risen; relative to other cities in Ningxia Hui, street construction in Yanchi has become more disconnected. Yanchi ranked 15th in 1976-1990, 11th in 1991-2000 and 6th in 2001-2014. There was no ranking in 1975 due to unavailable data.
Yanchi 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 Yanchi fare in comparison to others in China? Most recently in 2001-2014, street construction in Yanchi was the 914th-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 Yanchi has become more disconnected. Yanchi ranked 1490th in 1976-1990, 1173rd in 1991-2000 and 914th in 2001-2014. There was no ranking in 1975 due to unavailable data.
Yanchi and Ningxia Hui 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 Ningxia Hui peaked in 1991-2000.
To date, Yanchi is the 5th-most disconnected out of the 15 cities in Ningxia Hui. Its position in the ranks since 1975 has risen; relative to other cities in Ningxia Hui, the street network in Yanchi has become more disconnected. Yanchi ranked 15th in 1976-1990, 14th in 1991-2000 and 5th in 2001-2014. There was no ranking in 1975 due to unavailable data.
Yanchi 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, Yanchi is the 1181st-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 Yanchi has become more disconnected. Yanchi ranked 1592nd in 1976-1990, 1584th in 1991-2000 and 1181st in 2001-2014. There was no ranking in 1975 due to unavailable data.
As of 2015, Yanchi had a built-up area of 4.01 square kilometers, and a population of 64363 people.
These are some other cities with approximately the same population: