ABSTRACT
The developing world's cities are expanding at 62 million inhabitants per year, which is equivalent to adding a country the size of the United Kingdom, Turkey or Thailand every year. Cities drive the development process for a country in the early stages of modernization and give rise to more productive households and enterprises. However, pockets of poverty also spring up in cities and environmental degradation often occurs as a result of the people and their economic activity concentrated in urban centers. The World Bank's urban projects reach thousands of cities in the developing world. Sanitation planning was based on a combination of technologies and service levels. The Strategic Sanitation Plan proposes that simplified sewers would be used in tenement areas, latrines or septic tanks in the indigenous housing areas, and septic tanks in estate and high cost housing areas.
