Lishui: 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 Lishui, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Lishui as of 2014, the overall level of street-network sprawl is 0.75, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 0.52, 0.78, 0.06 and 0.99. Disconnectivity in street construction in Lishui follows a zig-zag trend. In 1991-2000, street construction was most disconnected, while construction was most connected in 2001-2014.
Quantity of street network construction: The street network in Lishui spans a total of 248 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 0.99, which is relatively 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 0.52, 0.68, 0.6 and 0.75. Disconnectivity in Lishui's street network follows a zig-zag trend. In 1975, the city was most disconnected; while it was most connected in 2001-2014.
Lishui and Zhejiang do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Lishui followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Zhejiang peaked in 1976-1990.
How do development practices in Lishui fare in comparison to others in Zhejiang? Most recently in 2001-2014, street construction in Lishui was the 71st-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 Lishui has become more connected. Lishui ranked 65th in 1975, 78th in 1976-1990, 69th in 1991-2000 and 71st in 2001-2014.
Lishui 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 increase.
Lishui and Zhejiang do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Lishui followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Zhejiang peaked in 1976-1990.
To date, Lishui is the 86th-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 Lishui has become more connected. Lishui ranked 65th in 1975, 82nd in 1976-1990, 82nd in 1991-2000 and 86th in 2001-2014.
Lishui and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Lishui followed a zig-zag trend with an overall increase, while the SNDi of street constructions in China peaked in 1976-1990.
As of 2015, Lishui had a built-up area of 16.8 square kilometers, and a population of 266877 people.
These are some other cities with approximately the same population: