New Attempted Moving Towards Understanding Urban System Behavior

Abstract

Abstract System is considering useful concept to describe the spatial forms (city, region, etc.). Additionally, diverse fields that undertaking finds it sharpen their understanding and improve their practice.by exploring the literatures in this field; here we argue that there are two forces that effect in urban system behavior: 1st one vertical force the value which changing according to urban rent and another social factor related to place. The 2nd one horizontal force the flow changing according to movement of matter, energy, and information. That may lead to new perspective to see the city as a system and highlight the way for planners to sustain their cities.