Hi friends I am currently researching a paper for Urban Development Planning. The paper is "A number of activities and services are coordinated and integrated during the process of urban development planning. Choose one activity or service and with reference to appropriate planning theory, show how it contributes (or ought to contribute) to the development of a specific urban area".

Can anyone suggest an appropriate planning theory, and where can i access information? the service i have chosen is water. looking forward to your urgent responses.