Penglai: city in Shandong, 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 Penglai, China on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Penglai as of 2014, the overall level of street-network sprawl is 1.9, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are -0.04, 1.73, 1.84 and 2.81. In each period, new street development in Penglai steadily grows more disconnected than in the last. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 1.77 points, but between 1991-2000 and 2001-2014, it rose by just 0.98.
Quantity of street network construction: The street network in Penglai spans a total of 190 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 1.73, 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 -0.04, 1.69, 1.69 and 1.9. Disconnectivity in Penglai's street network follows a zig-zag trend. In 1975, the city was most disconnected; while it was most connected in 2001-2014.
Penglai and Shandong do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Penglai rose steadily, while the SNDi of street constructions in Shandong followed a zig-zag trend with an overall increase.
How do development practices in Penglai fare in comparison to others in Shandong? Most recently in 2001-2014, street construction in Penglai was the 8th-most disconnected out of the 113 cities in Shandong. Its position in the ranks since 1975 has risen; relative to other cities in Shandong, street construction in Penglai has become more disconnected. Penglai ranked 65th in 1975, 26th in 1976-1990, 26th in 1991-2000 and 8th in 2001-2014.
Penglai and China do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Penglai rose steadily, while the SNDi of street constructions in China followed a zig-zag trend with an overall decrease.
How do development practices in Penglai fare in comparison to others in China? Most recently in 2001-2014, street construction in Penglai was the 429th-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 Penglai has become more disconnected. Penglai ranked 1126th in 1975, 764th in 1976-1990, 536th in 1991-2000 and 429th in 2001-2014.
Penglai and Shandong do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Penglai followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Shandong peaked in 1976-1990.
To date, Penglai is the 20th-most disconnected out of the 113 cities in Shandong. Its position in the ranks since 1975 has risen; relative to other cities in Shandong, the street network in Penglai has become more disconnected. Penglai ranked 65th in 1975, 23rd in 1976-1990, 26th in 1991-2000 and 20th in 2001-2014.
Penglai and China do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Penglai followed a zig-zag trend with an overall increase, while the SNDi of street constructions in China peaked in 1976-1990.
To date, Penglai is the 745th-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 Penglai has become more disconnected. Penglai ranked 1126th in 1975, 791st in 1976-1990, 805th in 1991-2000 and 745th in 2001-2014.
As of 2015, Penglai had a built-up area of 18.78 square kilometers, and a population of 94652 people.
These are some other cities with approximately the same population: