Consider modern cities. What problems that existed at the turn of the 20th century have been fixed? Which do you think still exist?

Question

It depends on what you mean by modern. Is Calcutta modern?

One would hope that water and sewage problems have been fixed, health problems, and sanitation. However, in some "modern" cities, it is not yet done.

Answer 1

Income inequality, poverty, and homelessness are still major issues in many modern cities. In addition, traffic congestion, air pollution, and overcrowding are still major problems in many cities. Crime, violence, and gang activity are also still major issues in many cities. Finally, access to quality education and healthcare are still major issues in many cities.