Pizhou: city in Jiangsu, 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 Pizhou, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Pizhou as of 2014, the overall level of street-network sprawl is 1.49, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.81, 1.99, 1.11 and 0.49. Street construction in Pizhou increased in disconnectivity initially but has since improved. The streets constructed in 1976-1990 were the most disconnected.
Quantity of street network construction: The street network in Pizhou spans a total of 247 kilometers. The period with the greatest volume of street construction was 2001-2014. These roads have an SNDi of 0.49, 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 1.81, 1.93, 1.67 and 1.49. The aggregate street network in Pizhou increased in disconnectivity initially,but the trend has turned around after 1990.
Pizhou and Jiangsu do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Pizhou peaked in 1976-1990, while the SNDi of street constructions in Jiangsu followed a zig-zag trend with an overall increase.
How do development practices in Pizhou fare in comparison to others in Jiangsu? Most recently in 2001-2014, street construction in Pizhou was the 80th-most disconnected out of the 87 cities in Jiangsu. Its position in the ranks since 1975 has fallen; relative to other cities in Jiangsu, street construction in Pizhou has become more connected. Pizhou ranked 31st in 1975, 37th in 1976-1990, 54th in 1991-2000 and 80th in 2001-2014.
Pizhou and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Pizhou peaked in 1976-1990, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in Pizhou fare in comparison to others in China? Most recently in 2001-2014, street construction in Pizhou was the 1173rd-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 Pizhou has become more connected. Pizhou ranked 552nd in 1975, 664th in 1976-1990, 746th in 1991-2000 and 1173rd in 2001-2014.
Pizhou and Jiangsu follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these peaked in 1976-1990.
To date, Pizhou is the 50th-most disconnected out of the 87 cities in Jiangsu. Its position in the ranks since 1975 has fallen; relative to other cities in Jiangsu, the street network in Pizhou has become more connected. Pizhou ranked 31st in 1975, 31st in 1976-1990, 40th in 1991-2000 and 50th in 2001-2014.
Pizhou and China follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these peaked in 1976-1990.
To date, Pizhou is the 961st-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 Pizhou has become more connected. Pizhou ranked 552nd in 1975, 690th in 1976-1990, 810th in 1991-2000 and 961st in 2001-2014.
As of 2015, Pizhou had a built-up area of 29.08 square kilometers, and a population of 257174 people.
These are some other cities with approximately the same population: