What term describes a continuous urban corridor joining at least two cities?

The term that describes a continuous urban corridor joining at least two cities is "Megalopolis." This concept refers to a large, sprawling urban area that is formed by the merging of multiple cities or metropolitan areas, creating a significant chain of urbanization. In such regions, the distance between urban centers diminishes, resulting in a seamless transition from one city to another rather than distinct boundaries.

Megalopolises are characterized by high population density, extensive infrastructure, and economic interconnectedness. They can often encompass various aspects of urban living, including residential, commercial, and industrial spaces, while also posing challenges related to transportation, resource management, and urban planning.

In contrast, terms like "metropolitan area" refer to a city and its surrounding suburbs rather than an extensive urban corridor. "Urban sprawl" typically denotes the spread of urban development into previously undeveloped land, while "suburban zone" describes areas that are predominantly residential and situated on the outskirts of a city. These terms do not adequately capture the interconnectedness of multiple cities that defines a megalopolis.