Megacities refer to urban areas with populations exceeding 10 million people. These cities are characterized by their massive size, high population density, and complexity of social, economic, and environmental challenges. Megacities are often hubs of economic activity, cultural exchange, and innovation, but they also face significant issues such as overpopulation, housing shortages, traffic congestion, pollution, and social inequality. Researchers studying megacities explore various aspects of urban life, including urban planning, transportation, infrastructure, sustainability, and social dynamics, in order to better understand and address the unique challenges and opportunities presented by these rapidly growing urban areas.