Oyama: city in Tochigi, Japan
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 Oyama, Japan on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Oyama as of 2014, the overall level of street-network sprawl is 0.55, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 0.46, 0.59, 0.73 and 1.1. In each period, new street development in Oyama steadily grows more disconnected than in the last.
Quantity of street network construction: The street network in Oyama spans a total of 591 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 0.46, 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 0.46, 0.52, 0.54 and 0.55. Overall, the SNDi of the aggregate street network has risen: the street network in Oyama has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.06 points, but between 1991-2000 and 2001-2014, it rose by just 0.01.
Oyama and Tochigi do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Oyama rose steadily, while the SNDi of street constructions in Tochigi peaked in 1991-2000.
How do development practices in Oyama fare in comparison to others in Tochigi? Most recently in 2001-2014, street construction in Oyama was the 2nd-most disconnected out of the 2 cities in Tochigi. Its position in the ranks since 1975 has not changed. Oyama ranked 2nd in 1975, 2nd in 1976-1990, 2nd in 1991-2000 and 2nd in 2001-2014.
Oyama and Japan do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Oyama rose steadily, while the SNDi of street constructions in Japan peaked in 1991-2000.
How do development practices in Oyama fare in comparison to others in Japan? Most recently in 2001-2014, street construction in Oyama was the 70th-most disconnected out of the 109 cities in Japan. Its position in the ranks since 1975 has risen; relative to other cities in Japan, street construction in Oyama has become more disconnected. Oyama ranked 101st in 1975, 90th in 1976-1990, 91st in 1991-2000 and 70th in 2001-2014.
Oyama and Tochigi do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Oyama rose steadily, while the SNDi of street constructions in Tochigi peaked in 1991-2000.
To date, Oyama is the 2nd-most disconnected out of the 2 cities in Tochigi. Its position in the ranks since 1975 has not changed. Oyama ranked 2nd in 1975, 2nd in 1976-1990, 2nd in 1991-2000 and 2nd in 2001-2014.
Oyama and Japan follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these rose steadily.
To date, Oyama is the 99th-most disconnected out of the 109 cities in Japan. Its position in the ranks since 1975 has risen; relative to other cities in Japan, the street network in Oyama has become more disconnected. Oyama ranked 101st in 1975, 99th in 1976-1990, 99th in 1991-2000 and 99th in 2001-2014.
As of 2015, Oyama had a built-up area of 25.27 square kilometers, and a population of 76102 people.
These are some other cities with approximately the same population: