花都区: city in Guangdong, 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 花都区, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in 花都区 as of 2014, the overall level of street-network sprawl is 2.4, 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 3.87, 1.97, 1.84 and 2.86. The disconnectivity of new streets constructed in 花都区 fell, then rose. In 1991-2000, new street layouts were the most connected.
Quantity of street network construction: The street network in 花都区 spans a total of 806 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 1.97, 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 3.87, 2.43, 2.37 and 2.4. The SNDi of the aggregate street network in fell at first, but 花都区 has worsened in disconnectivity since 2000.
花都区 and Guangdong follow the same trend in the disconnectivity of their street network constructions. The SNDi for both of these was at its lowest in 1991-2000.
How do development practices in 花都区 fare in comparison to others in Guangdong? Most recently in 2001-2014, street construction in 花都区 was the 35th-most disconnected out of the 109 cities in Guangdong. Its position in the ranks since 1975 has fallen; relative to other cities in Guangdong, street construction in 花都区 has become more connected. 花都区 ranked 15th in 1975, 65th in 1976-1990, 42nd in 1991-2000 and 35th in 2001-2014.
花都区 and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in 花都区 was at its lowest 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 花都区 fare in comparison to others in China? Most recently in 2001-2014, street construction in 花都区 was the 415th-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 花都区 has become more connected. 花都区 ranked 115th in 1975, 673rd in 1976-1990, 534th in 1991-2000 and 415th in 2001-2014.
花都区 and Guangdong follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these was at its lowest in 1991-2000.
To date, 花都区 is the 45th-most disconnected out of the 109 cities in Guangdong. Its position in the ranks since 1975 has fallen; relative to other cities in Guangdong, the street network in 花都区 has become more connected. 花都区 ranked 15th in 1975, 42nd in 1976-1990, 43rd in 1991-2000 and 45th in 2001-2014.
花都区 and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in 花都区 was at its lowest in 1991-2000, while the SNDi of street constructions in China peaked in 1976-1990.
To date, 花都区 is the 532nd-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 花都区 has become more connected. 花都区 ranked 115th in 1975, 467th in 1976-1990, 490th in 1991-2000 and 532nd in 2001-2014.
As of 2015, 花都区 had a built-up area of 63.99 square kilometers, and a population of 683837 people.
These are some other cities with approximately the same population: