Showing 4 results for Rezaei
Mahmud Rezaei,
Volume 32, Issue 2 (4-2022)
Abstract
This research explores the correlation between ‘walkability’ and the ‘sense of place’ in Tehran’s streets, particularly streets leading to the Imam Khomeini square (Maidan-e Tup-khana) at the heart of historic downtown. The goal is to evaluate the walkability through a measurable method in order to prioritize strategies to enhance various aspects of the historic districts. After reviewing the extensive urban design literature, 23 measures were selected and categorized into three aspects of the place: physical, perceptual, and behavioral. Data for each aspect were then gathered through structured questionnaires administered to diverse groups of experts. An expert panel, including 30 professionals from seven fields including urban planning, urban design, urban renewal, urban sociology, transportation, architecture, and urban management, rated the streets based on their confirmed criteria. Moreover, people have been consulted on the results proposed for the future of the district. This study concludes that the sense of the place will increase by enhancing walkability. The place quality has been more balanced in pedestrianized Bab-e-Homayoun. The panel agreed that Lalehzar Street had the first priority for improving its walkability. Complete Street is a proposed model for this street confirmed by people. This research, however, recommends at least ‘complete street’ patterns mixed with the pedestrianization model for the studied area which might be expanded to the whole historic downtown from Maidan-e Tup-khana to Arg (citadel), then toward the first and second Tehran’s fortifications. Here, Jabakhaneh Street works as the X-axis and Sabz-e-Meydan represents the Zero number of Tehran City.
Amir Faraji, Maria Rashidi, Fatemeh Rezaei, Ehsan Sorooshnia,
Volume 32, Issue 3 (7-2022)
Abstract
Given the different climate conditions worldwide, the need for climate zone-based architectural designs is evident. This need is more felt, particularly in critical thermal conditions, and is the most important challenge for an architect. One of the main sub-climates that require a special design is the humid subtropical climate in which winters are cold and rainy, and usually, the ambient temperature is lower than the comfort zone, with hot and humid summers that demand a temperature drop to achieve a comfort zone. The most fundamental problem is thus to provide cooling and heating systems in such environments. Accordingly, the present work aims at providing critical climate conditions with potential solutions. Here, Sari, with a humid subtropical climate, was selected as a case study, and its thermal conditions were investigated utilizing Physiological Equivalent Temperature (PET) and Predicted Mean Vote (PMV) indices, and the Rayman model. The results of our first study question revealed that the percentage of days with thermal comfort was 16.9%. Also, 16.3% and 17% of the days had slight and mild cold stress, respectively. Subsequently, the results from data analysis indicated that the ventilation and dehumidification cooling systems can be considered the most appropriate passive methods. In addition, the elements of the indigenous architecture including Iwan, Talaar, upstairs house, and sloping roof, which all are rooted in the vernacular architecture of the city of Sari can be introduced as the most effective architectural solutions. Our findings are of great importance for architects and designers because such findings will guide the design of complex site conditions and even the building construction by considering the thermal comfort factor.
Safoora Rezaei, Parastoo Eshrati, Dorna Eshrati,
Volume 32, Issue 4 (Special Issue: Green Housing, Guest Editor: Dr. Abbs. Yazdanfar 2022)
Abstract
This study aims to extract parameters defining neighborhoods from the residents’ points of view and compare them to those understood by experts. Experts’ proposed parameters and factors were extracted from the literature review, and residents’ parameters were obtained from conducting in-depth interviews analyzed by the Grounded theory method. Comparing experts’ and residents’ parameters shows weak, medium, and strong conformity between their parameters. Also, their factors, which are defining parameters, are different. Thus, parameters defining neighborhoods are not generalizable and cultural characteristics and local values of residents need to be considered in planning and policymaking for neighborhoods
Hadi Rezaei Rad, Zahra Khodaei, Mohammad Mehdi Ghiai,
Volume 33, Issue 4 (12-2023)
Abstract
Urban planning and morphology are one of the most important factors affecting land surface temperature (LST) and microclimate chrematistics. The production of anthropogenic heat, mainly for cooling systems and lighting, has resulted in significant impacts on the quality of the thermal environment. These impacts include poor air quality, increased temperatures, higher energy consumption, and the development of urban heat islands (UHIs). With the growing urban population and increased building height, especially in metropolitan areas, there have been significant changes in the urban geometry, rate of pollution, amount of heat released, and meteorological parameters. All these factors contribute to the heat island phenomenon and significantly alter the microclimate in urban areas. The goal of this article is measuring the effects of height changes in buildings around Tehran metropolitan squares in a detailed plan on microclimatic changes. As part of a research study, the Hafthoz Square in Tehran was chosen as a case study. The researchers used a combination of simulation techniques (Envi-met) and GIS to detect the spatial variation of Land Surface Temperature (LST) and determine its quantitative relationship with building height and density. This was achieved through simulation modeling for the Narmak neighborhood of Tehran. As Conclusion, the results indicate that comparison on the simulation between the existing conditions and proposed scenario area showed that in the proposed scenario, wind speed and relative humidity decrease and ground surface temperature (UHI) and PPD and PMV indices increase. Therefore, if the detailed plan of Tehran metropolis is realized and implemented in many squares, it will be accompanied by changes in micro-climatic parameters in order to reduce the thermal comfort of citizens.
