Sanming: city in Fujian, 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 Sanming, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Sanming as of 2014, the overall level of street-network sprawl is 2.8, 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 2.53, nan, nan and 1.37. Data was not available in 1976-1990 and 1991-2000.
Quantity of street network construction: The street network in Sanming spans a total of 165 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 2.53, 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 2.53, 2.55, 2.81 and 2.8. The aggregate street network in Sanming increased in disconnectivity initially,but the trend has turned around after 2000.
Sanming and Fujian do not follow the same trend in the disconnectivity of their street network constructions. There was not enough data from the city, while the SNDi of street constructions in Fujian peaked in 1991-2000.
How do development practices in Sanming fare in comparison to others in Fujian? Most recently in 2001-2014, street construction in Sanming was the 29th-most disconnected out of the 55 cities in Fujian. Sanming ranked 13th in 1975 and 29th in 2001-2014. There was no ranking in 1976-1990 and 1991-2000 due to unavailable data.
Sanming and China do not follow the same trend in the disconnectivity of their street network constructions. There was not enough data from the city, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in Sanming fare in comparison to others in China? Most recently in 2001-2014, street construction in Sanming was the 888th-most disconnected out of the 1651 cities in China. Sanming ranked 346th in 1975 and 888th in 2001-2014. There was no ranking in 1976-1990 and 1991-2000 due to unavailable data.
Sanming and Fujian do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Sanming peaked in 1991-2000, while the SNDi of street constructions in Fujian rose steadily.
To date, Sanming is the 17th-most disconnected out of the 55 cities in Fujian. Its position in the ranks since 1975 has fallen; relative to other cities in Fujian, the street network in Sanming has become more connected. Sanming ranked 13th in 1975, 21st in 1976-1990, 17th in 1991-2000 and 17th in 2001-2014.
Sanming and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Sanming peaked in 1991-2000, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Sanming is the 368th-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 Sanming has become more connected. Sanming ranked 346th in 1975, 429th in 1976-1990, 327th in 1991-2000 and 368th in 2001-2014.
As of 2015, Sanming had a built-up area of 9.63 square kilometers, and a population of 253422 people.
These are some other cities with approximately the same population: