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Abstract
This thesis studies the effect of Sky View Factor (SVF) on thermal comfort sensation during cold months in Tabriz, Iran. In this direction, one historic district and one newly developed district in Tabriz are selected to analyze and compare the physical structure of built environment. AutoCAD and 3DMax modeling as well as site photos are used to analyze the physical structure of built environment. Thermal comfort is investigated in a target point from each area for five selected days of Tabrizs winter. To quantify the thermal comfort sensation, a thermal index namely Universal Thermal Climate Index (UTCI) is used. RayMan model is employed to calculate UTCI based on metrological and geographical input parameters such as air temperature, wind speed, urban topology, vegetation, height and shape of buildings and SVF. Comparison of UTCI values in two selected target points reveals that pedestrians in the historic district expose less thermal stress during winter in the day-time.