Microclimate and human comfort considerations in planning a historic urban quarter

Lately, unexpectedly developing urban regions have been observed worldwide. This boom has an instantaneous impact on the microclimate and for this reason on human comfort, as a result negatively affecting international climate and power consumption degrees. Urban design selections together with road geometry and orientation, sidewalk widths, shading structures, materials, landscaping, building heights and air drift are key elements for pedestrian thermal comfort. This evaluation covers the built environment’s moderation components impact at the weather, with the purpose for optimizing the thermal comfort degree in out of doors urban area. The literature covers using simulation equipment to be expecting out of doors environmental situations with specific knowledge on Envi-met as a simulation device for comparing outside thermal comfort. Sooner or later, the paper expects to spotlight the microclimatic enhancement approaches, and the usage of simulation as a device in the field of urban layout.The paper focuses on the importance of air temperature, relative humidity, air motion, and suggests radiant temperature in city canyons in addition to in open public spaces for the sake of human thermal comfort. As at the micro-scale, an old historical district south Kom Al Shoqafah by Al Mahmoudiyah Canal in Alexandria has been studied. The consequences deliver some initial proof of the wonderful urban microclimate with the aid of the use of simulation strategies that may influence the city area design and the planning procedure. This study proved that the microclimatic conditions in a critical historic region are in a near relationship among human consolation and urban design. The study is for evaluating the opportunity of changing the microclimate through distinct design parameters that have strongly impact the microclimate.