Uploaded on 2019-08-29 by Enna Chetanbhai Mehta

Areas of the city of ahmedabad , for example, which have been inhabited for a long time by generations of people from similar backgrounds,could be seen to represent a stock of people.we can see the flow of people in city area. The flow of people is characterized by those who newly come into the city from the outside,and who leave the cit for their work and betterment. It appears surprising at first to list density, or space, under the stocks and flows characteristics of the city. Yet, the concept becomes immediately clear if you imagine the difference between a medieval city, such as mumbai,ahmedabad, delhi and a suburban area in ahmedabad, mumbai. The example of Detroit in the beginning of the 21st century demonstrates that density does not remain a stock forever, but that rapid changes in density can happen within a few years. In the information city, stocks and flows of information are almost as important as water, or materials. A stock of information is any library or data warehouse. The flow of information is ubiquitous, and continuously increasing in all cities of the world. with the use of this example we can learn stocks and flows.