Answer :
Los Angeles, San Diego, and neighboring cities mutually support each other in their urban development and expansion. These cities have grown together into one continuous urban community, and together they are an example of a megalopolis.
A megalopolis or supercity, also known as a megaregion, is a collection of metropolitan cities that are regarded as one continuous urban area due to shared transportation, economic, resource, and ecological systems.
Although the constituent metropolises retain their unique identities, they are integrated enough that coordinating policy is beneficial.
Due to the introduction of a new, more expansive way of thinking about urban patterns and growth, the megalopolis notion has grown to be quite influential.
According to Gottmann's research, a megalopolis or its synonym, a megaregion, refers to two or more roughly neighboring metropolitan areas that share certain systems, such as those related to transportation, the economy, resources, and ecologies, even though some degree of isolation may still exist.
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