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A megalopolis, following the work of Gottmann, refers to two or more roughly adjacent metropolitan areas that, through a commonality of systems—e.g., of transport, economy, resources, and ecologies—experience a blurring of the boundaries between the population centers, [2] such that while some degree of separation may remain, their ...
The Chinese municipality of Chongqing, which is the largest city proper in the world by population, comprises a huge administrative area of 82,403 km 2, around the size of Austria. However, more than 70% of its 30-million population are agricultural workers living in a rural setting .
Geographers had identified 25 such areas as of October 2005, [33] as compared with 19 megacities in 2004 and only nine in 1985. This increase has happened as the world's population moves towards the high (75–85%) urbanization levels of North America and Western Europe. Since the 2000s, the largest megacity has been the Greater Tokyo Area.
The megaregions of the United States are eleven regions of the United States that contain two or more roughly adjacent urban metropolitan areas that, through commonality of systems, including transportation, economies, resources, and ecologies, experience blurred boundaries between the urban centers, perceive and act as if they are a continuous urban area.
Urban area Country Built-up land area (km 2) Population Urban population density (per km 2) Greater Los Angeles United States: 87,940 18,316,743 541.1 San Francisco-Oakland-San Jose (Bay Area) United States: 26,390 9,710,000 953 New York City (New York City Metropolitan Area) United States: 12,093 20,902,000 1,728 Boston–Providence United ...
Urban area Distance at which the attractive force = the repulsive force Value of β; 1 Central city 10 km 6 2 Agglomeration 20 km 11 3 Metropolis 40 km 21 4 Patropolis 80 km 41 5 Megalopolis 160 km 81 6 Urban system 320 km 161 7 Urban macrosystem 640 km 321 8 Continental system 1,280 km 641 9 Intercontinental system 2,560 km 1,281 10 World system
The population, population density and land area for the cities listed are based on the entire city proper, the defined boundary or border of a city or the city limits of the city. The population density of the cities listed is based on the average number of people living per square kilometer or per square mile.
List includes metropolitan areas according only to the studies of ESPON, Eurostat, and OECD.For this reason some metropolitan areas, like the Italian Genoa Metropolitan Area (with a population of 1,510,781 as of 2010 [1]) or the Ukrainian Kryvyi Rih metropolitan area (with a population of 1,170,953 as of 2019 [2]), are not included in this list, with data by other statistic survey institutes.