Jiande: 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 Jiande, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Jiande as of 2014, the overall level of street-network sprawl is 2.66, 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 1.3, 2.36, 8.41 and 4.26. Street construction in Jiande increased in disconnectivity initially but has since improved. The streets constructed in 1991-2000 were the most disconnected.
Quantity of street network construction: The street network in Jiande spans a total of 172 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 2.36, 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 1.3, 2.03, 2.2 and 2.66. Overall, the SNDi of the aggregate street network has risen: the street network in Jiande has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.72 points, but between 1991-2000 and 2001-2014, it rose by just 0.46.
Jiande and Zhejiang do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Jiande peaked in 1991-2000, while the SNDi of street constructions in Zhejiang peaked in 1976-1990.
How do development practices in Jiande fare in comparison to others in Zhejiang? Most recently in 2001-2014, street construction in Jiande was the 6th-most disconnected out of the 94 cities in Zhejiang. Its position in the ranks since 1975 has risen; relative to other cities in Zhejiang, street construction in Jiande has become more disconnected. Jiande ranked 45th in 1975, 33rd in 1976-1990, 1st in 1991-2000 and 6th in 2001-2014.
Jiande and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Jiande peaked in 1991-2000, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in Jiande fare in comparison to others in China? Most recently in 2001-2014, street construction in Jiande was the 164th-most disconnected out of the 1651 cities in China. Its position in the ranks since 1975 has risen; relative to other cities in China, street construction in Jiande has become more disconnected. Jiande ranked 721st in 1975, 502nd in 1976-1990, 12th in 1991-2000 and 164th in 2001-2014.
Jiande and Zhejiang do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jiande rose steadily, while the SNDi of street constructions in Zhejiang peaked in 1976-1990.
To date, Jiande is the 22nd-most disconnected out of the 94 cities in Zhejiang. Its position in the ranks since 1975 has risen; relative to other cities in Zhejiang, the street network in Jiande has become more disconnected. Jiande ranked 45th in 1975, 39th in 1976-1990, 33rd in 1991-2000 and 22nd in 2001-2014.
Jiande and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jiande rose steadily, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Jiande is the 418th-most disconnected out of the 1651 cities in China. Its position in the ranks since 1975 has risen; relative to other cities in China, the street network in Jiande has become more disconnected. Jiande ranked 721st in 1975, 649th in 1976-1990, 573rd in 1991-2000 and 418th in 2001-2014.
As of 2015, Jiande had a built-up area of 8.66 square kilometers, and a population of 119496 people.
These are some other cities with approximately the same population: