There are many problems that affect urban areas today. Many of them are very closely connected to one another. Let us look at some of the most important of these. It is possible to classify these problems into two main types.
First, there are problems of poverty. In many cities, there are inner-city neighborhoods that are very poor. These are often neighborhoods inhabited by members of minority groups. These areas tend to have very poor education. There are few job opportunities for the people in those areas. There tends to be a great deal of crime. These problems come about largely because of the fact that economic engines no longer exist in those inner cities to give jobs to people with little education.
Second, there are problems of prosperity. These are problems that have come about because of the wealth of the people in the urban area. One such problem is excessive traffic. In many places, congestion is terrible and people waste hundreds of hours per year stuck in traffic. Another such problem is pollution that comes about because of all of the driving that is done. These kinds of quality of life problems come about because people have enough money that they are able to live in their own homes in the suburbs that came about as part of urban sprawl.
Thus, what we tend to have in cities is a set of problems suffered by people without enough money and another set of problems that come about because many people have a good deal of money.