Urban areas in the UK are regions characterized by high population density and significant infrastructure. Major cities like London, Birmingham, and Manchester serve as economic and cultural hubs, offering various services, employment opportunities, and amenities. These areas often feature a mix of residential, commercial, and industrial spaces. The UK has several urban areas classified as metropolitan regions, which include surrounding towns and suburbs. These regions are vital for transportation networks, with extensive public transit systems such as buses and trains. Urban areas also face challenges like housing shortages, pollution, and traffic congestion, prompting ongoing urban planning efforts.