Tongchuan: city in Shaanxi, 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 Tongchuan, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Tongchuan as of 2014, the overall level of street-network sprawl is 0.69, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 0.95, 1.2, 0.25 and 0.56. Disconnectivity in street construction in Tongchuan follows a zig-zag trend. In 1991-2000, street construction was most disconnected, while construction was most connected in 1976-1990.
Quantity of street network construction: The street network in Tongchuan spans a total of 199 kilometers. The period with the greatest volume of street construction was 1991-2000. These roads have an SNDi of 0.25, which is very 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 0.95, 1.12, 0.67 and 0.69. Disconnectivity in Tongchuan's street network follows a zig-zag trend. In 1991-2000, the city was most disconnected; while it was most connected in 1976-1990.
Tongchuan and Shaanxi do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Tongchuan followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in Shaanxi was at its lowest in 1976-1990.
How do development practices in Tongchuan fare in comparison to others in Shaanxi? Most recently in 2001-2014, street construction in Tongchuan was the 43rd-most disconnected out of the 60 cities in Shaanxi. Its position in the ranks since 1975 has fallen; relative to other cities in Shaanxi, street construction in Tongchuan has become more connected. Tongchuan ranked 34th in 1975, 32nd in 1976-1990, 36th in 1991-2000 and 43rd in 2001-2014.
Tongchuan and China follow the same trend in the disconnectivity of their street network constructions. The SNDi for both of these followed a zig-zag trend with an overall decrease.
How do development practices in Tongchuan fare in comparison to others in China? Most recently in 2001-2014, street construction in Tongchuan was the 1152nd-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 Tongchuan has become more connected. Tongchuan ranked 838th in 1975, 1002nd in 1976-1990, 1024th in 1991-2000 and 1152nd in 2001-2014.
Tongchuan and Shaanxi do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Tongchuan followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in Shaanxi was at its lowest in 1991-2000.
To date, Tongchuan is the 51st-most disconnected out of the 60 cities in Shaanxi. Its position in the ranks since 1975 has fallen; relative to other cities in Shaanxi, the street network in Tongchuan has become more connected. Tongchuan ranked 34th in 1975, 37th in 1976-1990, 48th in 1991-2000 and 51st in 2001-2014.
Tongchuan and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Tongchuan followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Tongchuan is the 1371st-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 Tongchuan has become more connected. Tongchuan ranked 838th in 1975, 1080th in 1976-1990, 1296th in 1991-2000 and 1371st in 2001-2014.
As of 2015, Tongchuan had a built-up area of 18.36 square kilometers, and a population of 130098 people.
These are some other cities with approximately the same population: