In many urban areas, the crowd is growing because the number of inhabitants continues to increase every year. The population per square kilometer can rise very quickly, especially in big cities. Each resident needs enough space, but that is becoming harder to find. Compared to the past, living conditions are relatively different from their relative situations in rural areas. Although housing used to be cheap, the cost of living has become much higher. People’s monthly income often cannot keep up with these changes. Good city arrangement is very important. Governments need to arrange transportation and housing carefully to stay productive and improve production. Without planning, traffic congestion and population concentration can cause serious problems. This is especially true during the peak hours of the day. To solve these issues, cities try to spread out development so areas are not too dense. People want jobs where they can earn a significant amount of money and feel certain about their future. With better policies, there may be a reduction or decrease in pollution and inequality, which can improve public attitude toward city life and help reduce poor living conditions.