Yilong: city in Sichuan, 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 Yilong, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Yilong as of 2014, the overall level of street-network sprawl is 5.28, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are nan, nan, 0.09 and 5.79. Data was not available in 1975 and 1976-1990.
Quantity of street network construction: The street network in Yilong spans a total of 53 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 5.79, which is highly disconnected.
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 nan, nan, 2.37 and 5.28. Data was not available in 1975 and 1976-1990.
Yilong and Sichuan 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 Sichuan was at its lowest in 1991-2000.
How do development practices in Yilong fare in comparison to others in Sichuan? Most recently in 2001-2014, street construction in Yilong was the 9th-most disconnected out of the 102 cities in Sichuan. Its position in the ranks since 1975 has risen; relative to other cities in Sichuan, street construction in Yilong has become more disconnected. Yilong ranked 65th in 1991-2000 and 9th in 2001-2014. There was no ranking in 1975 and 1976-1990 due to unavailable data.
Yilong 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 Yilong fare in comparison to others in China? Most recently in 2001-2014, street construction in Yilong was the 56th-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 Yilong has become more disconnected. Yilong ranked 1064th in 1991-2000 and 56th in 2001-2014. There was no ranking in 1975 and 1976-1990 due to unavailable data.
Yilong and Sichuan do not follow the same trend in the disconnectivity of their aggregate street networks. There was not enough data from the city, while the SNDi of street constructions in Sichuan was at its lowest in 1991-2000.
To date, Yilong is the 9th-most disconnected out of the 102 cities in Sichuan. Its position in the ranks since 1975 has risen; relative to other cities in Sichuan, the street network in Yilong has become more disconnected. Yilong ranked 44th in 1991-2000 and 9th in 2001-2014. There was no ranking in 1975 and 1976-1990 due to unavailable data.
Yilong and China do not follow the same trend in the disconnectivity of their aggregate street networks. There was not enough data from the city, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Yilong is the 34th-most disconnected out of the 1651 cities in China. Its position in the ranks since 1975 has risen; relative to other cities in China, the street network in Yilong has become more disconnected. Yilong ranked 488th in 1991-2000 and 34th in 2001-2014. There was no ranking in 1975 and 1976-1990 due to unavailable data.
As of 2015, Yilong had a built-up area of 3.45 square kilometers, and a population of 61172 people.
These are some other cities with approximately the same population: