Zhangzhishan: 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 Zhangzhishan, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Zhangzhishan as of 2014, the overall level of street-network sprawl is 1.67, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 3.04, 3.08, 2.09 and 1.34. Street construction in Zhangzhishan 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 Zhangzhishan spans a total of 238 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 1.34, 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 3.04, 3.02, 2.65 and 1.67. Overall, the SNDi of the aggregate street network has fallen: the street network in Zhangzhishan has become more connected. This decrease has quickened: between 1975 and 1976-1990, SNDi fell by 0.02 points, but between 1991-2000 and 2001-2014, it fell by just 0.98.
Zhangzhishan and Jiangsu do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Zhangzhishan 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 Zhangzhishan fare in comparison to others in Jiangsu? Most recently in 2001-2014, street construction in Zhangzhishan was the 60th-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 Zhangzhishan has become more connected. Zhangzhishan ranked 7th in 1975, 17th in 1976-1990, 32nd in 1991-2000 and 60th in 2001-2014.
Zhangzhishan and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Zhangzhishan 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 Zhangzhishan fare in comparison to others in China? Most recently in 2001-2014, street construction in Zhangzhishan was the 894th-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 Zhangzhishan has become more connected. Zhangzhishan ranked 237th in 1975, 289th in 1976-1990, 458th in 1991-2000 and 894th in 2001-2014.
Zhangzhishan and Jiangsu do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Zhangzhishan fell steadily, while the SNDi of street constructions in Jiangsu peaked in 1976-1990.
To date, Zhangzhishan is the 43rd-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 Zhangzhishan has become more connected. Zhangzhishan ranked 7th in 1975, 12th in 1976-1990, 14th in 1991-2000 and 43rd in 2001-2014.
Zhangzhishan and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Zhangzhishan fell steadily, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Zhangzhishan is the 871st-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 Zhangzhishan has become more connected. Zhangzhishan ranked 237th in 1975, 277th in 1976-1990, 379th in 1991-2000 and 871st in 2001-2014.
As of 2015, Zhangzhishan had a built-up area of 19.15 square kilometers, and a population of 78721 people.
These are some other cities with approximately the same population: