What problems have rapid urbanization in southeast asia caused?

The rapid urbanization in Southeast Asia has caused many problems. As the urbanization was way to rapid, and it was not well planned, the urban areas look like everything but urban. The housing problem is huge, as there's not enough for the demand on place, so lot of people live in very small living areas. The basic needs for life, like clean water and electricity are not on good level, often lacking. The environment has been destroyed because of clearing up space, but also after the people have settled, as the garbage and sewage go directly into the closest water bodies. Fertile soil that could have been used for agriculture has been destroyed for building settlements. The badly planned urbanization also led to building on places that are not safe, like places where there are low ground waters and aquifers, places that are always under danger of floods, places that have soft sediments and sink.

the answer is a wheel