Busy cities are often characterized by a high population density, which leads to crowded streets and bustling public spaces. People move quickly, whether they are commuting to work, shopping, or enjoying leisure activities. The presence of various businesses, restaurants, and entertainment options contributes to the vibrant atmosphere of these urban areas. In busy cities, transportation systems like subways, buses, and taxis play a crucial role in helping residents and visitors navigate the area. Skyscrapers and modern architecture dominate the skyline, while parks and recreational areas provide a contrast to the fast-paced environment. Overall, busy cities are dynamic places filled with energy and opportunities.