Gaoyi: city in Hebei, 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 Gaoyi, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Gaoyi as of 2014, the overall level of street-network sprawl is 1.7, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.36, 1.66, 1.92 and 1.69. Disconnectivity in street construction in Gaoyi follows a zig-zag trend. In 1976-1990, street construction was most disconnected, while construction was most connected in 1975.
Quantity of street network construction: The street network in Gaoyi spans a total of 258 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 1.66, 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 2.36, 1.69, 1.71 and 1.7. Disconnectivity in Gaoyi's street network follows a zig-zag trend. In 1976-1990, the city was most disconnected; while it was most connected in 1975.
Gaoyi and Hebei do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Gaoyi followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in Hebei followed a zig-zag trend with an overall decrease.
How do development practices in Gaoyi fare in comparison to others in Hebei? Most recently in 2001-2014, street construction in Gaoyi was the 48th-most disconnected out of the 99 cities in Hebei. Its position in the ranks since 1975 has fallen; relative to other cities in Hebei, street construction in Gaoyi has become more connected. Gaoyi ranked 30th in 1975, 57th in 1976-1990, 19th in 1991-2000 and 48th in 2001-2014.
Gaoyi and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Gaoyi followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in Gaoyi fare in comparison to others in China? Most recently in 2001-2014, street construction in Gaoyi was the 785th-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 Gaoyi has become more connected. Gaoyi ranked 402nd in 1975, 803rd in 1976-1990, 515th in 1991-2000 and 785th in 2001-2014.
Gaoyi and Hebei do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Gaoyi followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in Hebei peaked in 1976-1990.
To date, Gaoyi is the 51st-most disconnected out of the 99 cities in Hebei. Its position in the ranks since 1975 has fallen; relative to other cities in Hebei, the street network in Gaoyi has become more connected. Gaoyi ranked 30th in 1975, 52nd in 1976-1990, 49th in 1991-2000 and 51st in 2001-2014.
Gaoyi and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Gaoyi followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Gaoyi is the 854th-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 Gaoyi has become more connected. Gaoyi ranked 402nd in 1975, 790th in 1976-1990, 791st in 1991-2000 and 854th in 2001-2014.
As of 2015, Gaoyi had a built-up area of 15.17 square kilometers, and a population of 89926 people.
These are some other cities with approximately the same population: