Enhancement of Outdoor Thermal Comfort through Adoption of Environmental Design Strategies

Abstract

The impact of rapid growth of urbanization on the pattern of pedestrian movement as well as people's stop time in outdoor spaces is inconceivable .Since conditions that are created by physical characteristics of open spaces that exposed to direct sun, have a significant effect on pedestrian's behavior, in this research, the influence of micro scale urban design on pedestrian comfort is investigated in different time of day in Tehran as a hot and dry city. In this regard, the Vali-ASR Avenue in Tehran has been studied by simulation method in Envi-met software. In this paper we used the Envi-Met software and the ambient site temperature parameter to analyze and compare the energy efficiency of design elements including vegetation density, water features and pavement materials in the morning and high noon time (presence of light). Results show that and presence of sun in high noon is the major reason of high effect of climatic element on thermal comfort and using all landscape design elements at the same time is the most effective way to reduce the overall intensity of temperatures in the linear open spaces.