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A megalopolis (/ ˌ m ɛ ɡ ə ˈ l ɒ p ə l ɪ s /) or a supercity, [1] also called a megaregion, [2] is a group of metropolitan areas which are perceived as a continuous urban area through common systems of transport, economy, resources, ecology, and so on. [2]
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, [32] 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.
The Northeast megalopolis, also known as the Northeast Corridor, Acela Corridor, [5] Boston–Washington corridor, BosWash, or BosNYWash, [6] is the most populous megalopolis exclusively within the United States, with slightly over 50 million residents as of 2022. It is the world's largest megalopolis by population and economic output. [7]
The Abidjan–Lagos Corridor, also known as the Abidjan–Lagos Megalopolis, is an emerging transnational megalopolis on the coast of southern West Africa. It stretches from Abidjan to Lagos , crossing five independent states ( Côte d'Ivoire , Ghana , Togo , Benin , and Nigeria ) from west to east, and includes two political capitals and many ...
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
Greater Dhaka is the Megalopolis including and surrounding the Bangladeshi capital city of Dhaka, which has grown into one of the world's largest megacities, and shows a very rapid rate of expansion. Dhaka not only grows because it is the capital and largest urban center but also due to massive internal displacement from millions of people ...