Bidonville
city or town usually inhabited by the very poor. Slums can be found in most large cities around the world.
Slums are usually characterized by high rates of poverty and unemployment and are breeding centers for many social problems such as crime, drugs, alcoholism, and despair. In many poor countries they are also breeding centers for disease due to unsanitary conditions. Though the terms are often now used interchangeably, slums and ghettoes differ in that ghettoes originally referred to a neighborhood based on shared ethnicity.
In many slums, especially in poor countries, people live in very narrow alleys that do not allow vehicles (like ambulances and fire trucks) to pass. The lack of services such as routine garbage collection allows garbage to accumulate in huge quantities. In some slums people collect the city cans for a living, later recycling them for the money.
Many governments around the world have attempted to solve the problems of slums by clearing away old decrepit housing and replacing it with modern (usually high rise) housing with much better sanitation. This process is sometimes called gentrification. Slum clearances, however, have not usually been successful in reducing the social problems associated with slums because the residents of the new housing usually still face the problems of poverty and unemployment.
See also: favela, shanty town
