Urban Sustainable Development Journal
Year:2025 | Volume:6 | Issue:19|Papers Count:6

From the point of view of sustainable development, the concept of quality of life (QOL) has a direct relationship with urban sustainability, and in the last century, due to the rapid growth of cities, this concept is influenced by various dimensions, so that Proper planning and effective management are necessary to improve the quality of urban life and considering that the main function of cities is to provide places for people to trade, produce, communicate and live. Measuring the QOL of urban environments in uran planning from the residents' point of view is important for the sustainability of the city. Urban rivers are one of the natural elements of cities that have an important role in the formation of structural and functional changes in cities and directly and indirectly affect the lives of the residents around them. Zayandehrud River in Isfahan city, as one of the natural and heritage rivers, had a significant impact on the developments of the city and the components of the QOL of the residents around it in the past few centuries and today it is facing the hazards (drought), and this problem has caused a deficiency in the QOL level. The lives of the residents surround it and it requires attention to the level of the QOL of the residents as a reporting system in the urban planning of Zayandehrud River. The article’s purpose has identified and assessed the dimensions of the QOL of the residents around the Zayandehrud River. This is applied research and based on quantitative and qualitative (Mixed methods), and data collection is based on documentary, field studies, surveys, observation tools and structured questionnaires, as well as data analysis has approved from document analysis and historical-structural analysis, along with quantitative analysis such as, Confirmatory Factor Analysis (CFA). The results showed that the dimensions of the QOL of the residents around Zayandehrud River include six dimensions: "political and managerial", "economic", "historical", "social", "physical" and "environmental", however, each of them includes several components and indicators. The "social dimension" determines the changes in other dimensions of the residents' QOL and includes the components of "identification", "sociability", "leisure time" and "mental health".

Global warming has become a major challenge of the present century, manifesting in temperature fluctuations and changes in precipitation patterns. Economic growth in urban areas attracts large populations, increasing the demand for housing, energy, water, and food, which in turn leads to various consequences such as higher building and population density, land degradation, and the destruction of natural and agricultural lands. The expansion of industrial factories and air pollution has recently caused significant climatic anomalies in Khorramabad. The accelerating trend of physical development, particularly in the southern regions of the city, further reflects these climatic challenges. According to meteorological data, the average temperature in the city has risen by 0.5°C over the past 30 years. Based on scenarios presented by the Intergovernmental Panel on Climate Change (IPCC), if this trend persists, temperatures could increase by up to 4°C. This study evaluates the relationship between climate change and urban space formation by simulating climatic data and urban environments at the neighborhood scale using the ENVI-MET software. The study analyzes three ten-year development phases (2007, 2012, 2017) by examining temperature, wind speed, and humidity. The findings indicate that semi-open spaces, moderate-density structures, and semi-compact urban fabrics represent the most effective urban forms for mitigating climate change impacts. This structural approach aligns with environmental design principles tailored to the specific climatic conditions of the study area and the prevailing climate change trends.

Designing programs for the rehabilitation and development of water distribution networks before any executive action, in order to avoid wasting costs, requires simulating the effect of executive options on the performance of the network. Performance of water distribution networks is evaluated based on the network risk index for current and the future situations of the network. Also, network performance is evaluated in time periods (daily, monthly, quarterly and yearly) to determine the sustainability of or compare homogeneous networks. It is necessary to pay attention to the evaluation of the local and point efficiency of the network and its relationship with the sustainability index. Therefore, current research was designed to carry out the mechanism of obtaining a point index as a new solution to show the effects of changes on consumption points.In the implementation step, the hydraulic simulation of the real water distribution network in Abek Qazvin was carried out to extract the necessary data to implement the proposed method. Then the point indices of resilience, vulnerability and reliability were extracted from the overall index of the network in three modes of minimum, average and maximum consumption.The distribution of point sustainability indices showed that more than half of the network nodes are in a relatively stable state; on the other hand, a significant part of the network nodes is in the relative sustainability range, and some of the network nodes are in the unstable range. Also, the results showed that in the maximum consumption mode, the distribution of point sustainability had lower values than other consumption modes, in such a way that the trend of changes in the overall index of the network decreased from 0.66 to 0.41 with the decrease in pressure. In the same situation simultaneously, the average point index of the network decreased from 0.8 to 0.27. Therefore, the comparison of the total and point sustainability indices of the network showed that the amount and distribution of the sustainability index of the network points have decreased more with the increase in consumption (pressure reduction) compared to the total index. As a result, the point sustainability index in the state of maximum consumption compared to the total sustainability index was a better indicator for network consumption nodes. Therefore, it can be recommended that in network rehabilitation and development programs, evaluation and promotion of point sustainability will provide more favorable operational results. For continuing and raising up the accuracy of current research outcomes, authors suggest to analyses both overall and points sustainability indices within three main conditions of the water network correspondence to periods of the 10 meters water pressures as these pressure classification seats the acceptable pressure situation in the network.

Today, one of the basic issues of urban planners is the improvement of urban spaces, among which green use as a living and dynamic element plays an important role in this field. On the other hand, the correct identification of these spaces and their adaptation, considering the importance of gardens and green spaces in the city, leads to a distribution that is proportional to the size and power of the region. This action needs analysis and feasibility studies, which is a step in the direction of moving from the current situation to the desired situation. Gardens of Qasr al-Dasht, most of which are located within the six cities of Shiraz, are considered a valuable resource for improving the quality of the environment. The current research is an applied research and a combination of library and analytical methods, and its purpose is to provide a continuous network of greenways through the efficiency of pedestrian routes according to the current conditions of the six cities of Shiraz. The method used in this research is the multi-criteria decision-making technique (combination of Entropy Shannon and Vicor method) and network analysis in GIS environment. First, through GIS software, potential areas were identified for creating a continuous greenway network. Then, by using the network analysis method, the possibility of connecting the identified points in the form of a corridor was explained. In the following, the available options were scored by measuring the criteria affecting the creation of a continuous greenway network. Finally, through the method of multi-criteria analysis, the options were ranked and alternative #2 was proposed as the most likely path. The findings of this research, while stating that the field of greenways and sidewalks are aligned, showed that this area has provided spaces in the form of places with the ability to walk, which have been welcomed by users due to the existing infrastructure and facilities. In general, it is concluded that the connection of recreational and green attractions in the form of recreational green corridors, while connecting the attractions, provides an opportunity to know the neglected natural elements.

The application of the sustainable urban regeneration approach in informal settlements can lead to the reversal of the decline in the quality of life of their residents; but the realization of this goal in the first place requires identifying the capabilities and limitations of informal areas so that this can be achieved within its context. In order to sustainable regeneration can enhance the capacities of informal settlements and alleviate its constraints. In this way, the present research has been carried out in order to explain the capabilities and limitations of Bagarkhan 1, Bagarkhan 2 and Persi Gas in Bojnord city from the perspective of sustainable urban regeneration.  Baqerkhan 1, Baqerkhan 2, and Persi Gas neighborhoods are located in district 9, in the northeast of the city of Bojnourd. According to the 2015 census, the total population is 8069 people, with 3501 people residing in Baqerkhan 1 and 4568 people in Baqerkhan 2 and Persi Gas neighborhoods. The initial residents of these neighborhoods were villagers living in the central part and suburbs of Bojnord, and sometimes other districts of Bojnord. Due to the effects of land reforms and the resulting weaknesses in the economic system of rural areas, they were forced to migrate to the city of Bojnord and settled in the northern area of the city, mainly agricultural lands. Consequently, the mentioned neighborhoods took on a rural identity that was added to the city's boundaries in 1997. These neighborhoods now face numerous issues and challenges, including high unemployment rates among youth, inadequate condition of neighborhood roads, poor environmental sanitation, low urban service coverage, lack of security in parks and gardens, and etc. .This research is written with a descriptive-analytical nature and based on an assessment framework, and has collected information using documentary and survey methods. The sample size of the research was determined using Cochran's formula, 367 people, and content validity was used to determine the validity of the research questionnaire, and Cronbach's alpha was used for its reliability. The results of this research show that although the neighborhoods of Baqerkhan 1, Baqerkhan 2 and Parsi Gas of Bojnord city have numerous limitations from the point of view of sustainable urban regeneration, such as the low level of literacy, the low sense of belonging to a place, the high number of insecure and defenseless spaces, the low They face social security, low per capita service use, insufficient expertise of workers, low professional ability of residents, poor environmental quality, low physical resilience, low local governance, etc.; But on the other hand, they also have capabilities in this field, including the high residence history of the residents, low social delinquency, high social relationships and solidarity, high social capital, the existence of agricultural lands and a sense of security of possession, which can be used if necessary as the driver of sustainable regeneration at the level of these neighborhoods. The results of the single-sample t-test aimed at further examining the evaluative indicators of the social dimension of sustainable urban regeneration indicate that the sense of place attachment at the study area level (with a mean of 2.83) is low, such that residents of these neighborhoods, although attached to their neighborhoods, are willing to move to formal urban neighborhoods if their economic situation improves.

The use of daylight in the design of south-facing windows of schools in the Tehran has not received much attention. daylight is a multi-dimensional concept that affects both optimizing energy consumption and providing quality daylight for classrooms, or in other words for provide a visual comfort. In this study, the importance of louvers in improving useful daylight and visual comfort in classrooms is examined, and different configurations of louvers are analyzed to identify the most effective solutions to increase the distribution of useful daylight throughout the day and reduce glare.In this study, 578 louver models were simulated and examined, including horizontal louvers and light shelves with different parameters. The parameters investigated in this study include the depth and angle of the louvers, the number of blades, and their spacing in horizontal louvers, with the distance of the louvers from the window and the WWR being constant. Evaluation criteria for brightness include the UDI, ASE, and sDG indices. After evaluating these three indices, the effectiveness of each louver model was examined to determine the efficacy of each louver model. Rhino software and Grasshopper plugin were used for geometric changes in the louvers in this study. Daylight simulation was carried out using Radiance software, with Ladybug and Honeybee plugins in the Grasshopper environment.In general, all louvers contribute to improving visual comfort in the classroom, but among the studied louver models, horizontal louvers have the highest daily useful daylight factor (UDI) at 98%, while the lowest value is 87% for light shelves with horizontal louvers. All studied louvers improved the sDG, but the most improvement was observed with the combination of light shelves and horizontal louvers, which led to a reduction in the UDI. Increasing the angle of the louvers increases visual comfort. However, simultaneously increasing the depth and angle of the louvers decreases useful daylight, leading to a reduction in visual comfort. Additionally, increasing the number of blades in horizontal louvers does not increase visual comfort.