Qiqihar: city in Heilongjiang, 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 Qiqihar, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Qiqihar as of 2014, the overall level of street-network sprawl is 1.62, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.26, 2.78, 0.95 and 2.22. Disconnectivity in street construction in Qiqihar follows a zig-zag trend. In 1991-2000, street construction was most disconnected, while construction was most connected in 1976-1990.
Quantity of street network construction: The street network in Qiqihar spans a total of 536 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 1.26, 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 1.26, 1.57, 1.57 and 1.62. Disconnectivity in Qiqihar's street network follows a zig-zag trend. In 1975, the city was most disconnected; while it was most connected in 2001-2014.
Qiqihar and Heilongjiang do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Qiqihar followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Heilongjiang peaked in 1976-1990.
How do development practices in Qiqihar fare in comparison to others in Heilongjiang? Most recently in 2001-2014, street construction in Qiqihar was the 16th-most disconnected out of the 52 cities in Heilongjiang. Its position in the ranks since 1975 has risen; relative to other cities in Heilongjiang, street construction in Qiqihar has become more disconnected. Qiqihar ranked 33rd in 1975, 21st in 1976-1990, 20th in 1991-2000 and 16th in 2001-2014.
Qiqihar 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.
How do development practices in Qiqihar fare in comparison to others in China? Most recently in 2001-2014, street construction in Qiqihar was the 586th-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 Qiqihar has become more disconnected. Qiqihar ranked 732nd in 1975, 373rd in 1976-1990, 816th in 1991-2000 and 586th in 2001-2014.
Qiqihar and Heilongjiang do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Qiqihar followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Heilongjiang peaked in 1976-1990.
To date, Qiqihar is the 28th-most disconnected out of the 52 cities in Heilongjiang. Its position in the ranks since 1975 has risen; relative to other cities in Heilongjiang, the street network in Qiqihar has become more disconnected. Qiqihar ranked 33rd in 1975, 27th in 1976-1990, 26th in 1991-2000 and 28th in 2001-2014.
Qiqihar and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Qiqihar followed a zig-zag trend with an overall increase, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Qiqihar is 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, the street network in Qiqihar has become more connected. Qiqihar ranked 732nd in 1975, 854th in 1976-1990, 864th in 1991-2000 and 894th in 2001-2014.
As of 2015, Qiqihar had a built-up area of 57.94 square kilometers, and a population of 880400 people.
These are some other cities with approximately the same population: