This document provides a typology of 7 different types of slums:
1. Slums in the path of development that are threatened by urban projects
2. Slums in the heart of cities that are coveted for real estate development
3. Slums along railway tracks in unused urban land
4. Slums in residential centers that house construction workers
5. Slums on the fringes of cities in inaccessible locations
6. Slums near suburban industrial areas that house immigrant workers
7. Old city slums in neglected older parts of cities lacking infrastructure