Cities have the capability of providing something for everybody, only because, and only when, they are created by everybody." ― Jane Jacobs
The world's urban population has swelled from 220 million to almost three billion in this century alone and UN forecasts show that in 2050, more than 70% of the world's population will be living in urban areas. As per the estimation of UN, about 180,000 people are being added to the urban population every day.
City is a living organism which adapts to accommodate the changes occurring in the components of the urban environment. These changes were slow and insignificant till the beginning of 20th century. In the 21st century as a result of urbanization; these changes are occurring so fast that the city is unable to accommodate them causing urban sprawl and thereby affecting quality of life of masses.