Tangyin: city in Henan, 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 Tangyin, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Tangyin as of 2014, the overall level of street-network sprawl is 1.09, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.02, 1.65, 0.25 and 0.59. The disconnectivity of new streets constructed in Tangyin fell, then rose. In 1991-2000, new street layouts were the most connected.
Quantity of street network construction: The street network in Tangyin spans a total of 197 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 0.59, 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 2.02, 1.69, 1.37 and 1.09. Overall, the SNDi of the aggregate street network has fallen: the street network in Tangyin has become more connected.
Tangyin and Henan do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Tangyin was at its lowest in 1991-2000, while the SNDi of street constructions in Henan peaked in 1991-2000.
How do development practices in Tangyin fare in comparison to others in Henan? Most recently in 2001-2014, street construction in Tangyin was the 67th-most disconnected out of the 118 cities in Henan. Its position in the ranks since 1975 has fallen; relative to other cities in Henan, street construction in Tangyin has become more connected. Tangyin ranked 15th in 1975, 28th in 1976-1990, 62nd in 1991-2000 and 67th in 2001-2014.
Tangyin and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Tangyin 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 Tangyin fare in comparison to others in China? Most recently in 2001-2014, street construction in Tangyin was the 1147th-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 Tangyin has become more connected. Tangyin ranked 489th in 1975, 804th in 1976-1990, 1026th in 1991-2000 and 1147th in 2001-2014.
Tangyin and Henan do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Tangyin fell steadily, while the SNDi of street constructions in Henan peaked in 1976-1990.
To date, Tangyin is the 52nd-most disconnected out of the 118 cities in Henan. Its position in the ranks since 1975 has fallen; relative to other cities in Henan, the street network in Tangyin has become more connected. Tangyin ranked 15th in 1975, 25th in 1976-1990, 38th in 1991-2000 and 52nd in 2001-2014.
Tangyin and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Tangyin fell steadily, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Tangyin is the 1167th-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 Tangyin has become more connected. Tangyin ranked 489th in 1975, 789th in 1976-1990, 969th in 1991-2000 and 1167th in 2001-2014.
As of 2015, Tangyin had a built-up area of 17.54 square kilometers, and a population of 94089 people.
These are some other cities with approximately the same population: