Tonglu: city in Zhejiang, 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 Tonglu, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Tonglu as of 2014, the overall level of street-network sprawl is 3.12, 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 4.2, 2.97, 3.0 and 2.81. Disconnectivity in street construction in Tonglu follows a zig-zag trend. In 2001-2014, street construction was most disconnected, while construction was most connected in 1975.
Quantity of street network construction: The street network in Tonglu spans a total of 206 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 2.81, which is in the 40th to 60th percentile of disconnectedness.
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 4.2, 3.45, 3.33 and 3.12. Overall, the SNDi of the aggregate street network has fallen: the street network in Tonglu has become more connected.
Tonglu and Zhejiang do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Tonglu followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in Zhejiang peaked in 1976-1990.
How do development practices in Tonglu fare in comparison to others in Zhejiang? Most recently in 2001-2014, street construction in Tonglu was the 26th-most disconnected out of the 94 cities in Zhejiang. Its position in the ranks since 1975 has fallen; relative to other cities in Zhejiang, street construction in Tonglu has become more connected. Tonglu ranked 6th in 1975, 15th in 1976-1990, 10th in 1991-2000 and 26th in 2001-2014.
Tonglu and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Tonglu 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 Tonglu fare in comparison to others in China? Most recently in 2001-2014, street construction in Tonglu was the 432nd-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 Tonglu has become more connected. Tonglu ranked 97th in 1975, 317th in 1976-1990, 244th in 1991-2000 and 432nd in 2001-2014.
Tonglu and Zhejiang do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Tonglu fell steadily, while the SNDi of street constructions in Zhejiang peaked in 1976-1990.
To date, Tonglu is the 12th-most disconnected out of the 94 cities in Zhejiang. Its position in the ranks since 1975 has fallen; relative to other cities in Zhejiang, the street network in Tonglu has become more connected. Tonglu ranked 6th in 1975, 8th in 1976-1990, 8th in 1991-2000 and 12th in 2001-2014.
Tonglu and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Tonglu fell steadily, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Tonglu is the 252nd-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 Tonglu has become more connected. Tonglu ranked 97th in 1975, 181st in 1976-1990, 185th in 1991-2000 and 252nd in 2001-2014.
As of 2015, Tonglu had a built-up area of 11.29 square kilometers, and a population of 137679 people.
These are some other cities with approximately the same population: