Luoyang: 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 Luoyang, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Luoyang as of 2014, the overall level of street-network sprawl is 1.44, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.2, 1.52, 1.71 and 1.54. Street construction in Luoyang increased in disconnectivity initially but has since improved. The streets constructed in 1991-2000 were the most disconnected.
Quantity of street network construction: The street network in Luoyang spans a total of 1684 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 1.52, 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 1.2, 1.41, 1.42 and 1.44. Overall, the SNDi of the aggregate street network has risen: the street network in Luoyang has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.21 points, but between 1991-2000 and 2001-2014, it rose by just 0.02.
Luoyang and Henan follow the same trend in the disconnectivity of their street network constructions. The SNDi for both of these peaked in 1991-2000.
How do development practices in Luoyang fare in comparison to others in Henan? Most recently in 2001-2014, street construction in Luoyang was the 32nd-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 Luoyang has become more connected. Luoyang ranked 25th in 1975, 32nd in 1976-1990, 30th in 1991-2000 and 32nd in 2001-2014.
Luoyang and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Luoyang peaked 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 Luoyang fare in comparison to others in China? Most recently in 2001-2014, street construction in Luoyang was the 840th-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 Luoyang has become more connected. Luoyang ranked 750th in 1975, 860th in 1976-1990, 578th in 1991-2000 and 840th in 2001-2014.
Luoyang and Henan do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Luoyang rose steadily, while the SNDi of street constructions in Henan peaked in 1976-1990.
To date, Luoyang is the 32nd-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 Luoyang has become more connected. Luoyang ranked 25th in 1975, 34th in 1976-1990, 36th in 1991-2000 and 32nd in 2001-2014.
Luoyang and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Luoyang rose steadily, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Luoyang is the 990th-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 Luoyang has become more connected. Luoyang ranked 750th in 1975, 924th in 1976-1990, 940th in 1991-2000 and 990th in 2001-2014.
As of 2015, Luoyang had a built-up area of 190.39 square kilometers, and a population of 1804860 people.
These are some other cities with approximately the same population: