Simulation Analysis of a Compact City Model

Abstract

Half the number of population in the world lives in cities at the present. Almost social and economic activities concentrate in cities. After the industrial revolution, the emergence of cities has brought about great changes in our lives. The economic system in the twenties century has been achieved by mass production, mass consumption and mass dumping of wastes. To attain a sustainable society in the near future, we are forced to realign some of our urban systems.
In this paper, we try to develop a dynamic urban economic simulation model. The model is described as a social optimum problem based on the welfare economics. Appling the numerical computation of the optimal control theory, we derive the optimal solution. We must consider various aspects to evaluate the sustainability of urban systems. In this model, we focuses on main factors, social and environmental stock and land use regulation. In this simulation, 3 cases are simulated under a scenario. We try to show the impact of the compact city policy on the urban spatial system. The numerical simulation shows that the utility level increases when the urban form is re-concentrated.