ارزیابی رابطه اختلاط کاربری و پایداری شهری در شهرهای جدید(نمونه مورد مطالعه شهر جدید پرند)

شتاب شهرنشینی، توسعه پایدار شهرهای جدید را به چالشی اساسی تبدیل کرده است. در این راستا، استفاده کارآمد از زمین و ترویج شیوه‌های پایدار جهت تامین رفاه ساکنان و حفاظت از محیط زیست امری ضروری محسوب می‌شود. یکی از راهکارهای موثر در این زمینه، بهره‌گیری از مفهوم اختلاط کاربری زمین است که شامل ادغام کاربری‌های مختلف زمین در شهر، به منظور ایجاد فضاهای شهری پویا و انعطاف‌پذیر می‌شود. هدف اصلی این مقاله بررسی تاثیر کاربری ترکیبی زمین بر تحقق پایداری شهری در حوزه‌های اجتماعی، اقتصادی و زیست محیطی و مدیریتی بوده است، که در محدوده شهر جدید پرند مورد بررسی قرار گرفته است. در این پژوهش، از روش کمی و مدل معادلات ساختاری در نرم‌افزار آموس استفاده شده است. ابزار مورد استفاده شامل پرسشنامه شهروندی بوده که نمونه مطالعه آن شامل 400 نفر از ساکنان شهر جدید پرند بوده است. نتایج به‌دست‌آمده نشان می‌دهد که اختلاط کاربری اراضی توسعه پایدار شهری تاثیرگذار است که این تاثیرات از طریق دسترسی به سیستم حمل و نقل و دسترسی به خدمات، به ویژه در حوزه‌های پایداری زیست‌محیطی، مدیریتی، اقتصادی و اجتماعی موثر بوده است. به طور کلی، نتایج بخش مورد بررسی نشان می‌دهند که مدل مطرح شده با کارآیی مطلوبی ارتباطات متقابل بین عوامل مختلف را توضیح داده است. این اطلاعات قابل استفاده در تصمیم‌گیری‌ها و برنامه‌ریزی‌های شهری برای تعزیز پایداری شهری هستند و در بهبود کیفیت زندگی شهروندان نقش اساسی ایفا می‌کنند. توجه به اختلاط کاربری اراضی، به ویژه در محدوده شهرهای جدید، می‌تواند با توجه به ترتیبات معین، به سوی توسعه پایدار شهری حرکت کند.

the impact of mixed land use on urban sustainability in new cities: a case study of parand

ntroduction: the main goal in urban planning and design is to achieve sustainable development, which involves coordinating economic, social, and environmental factors to create cities with a high quality of life. land use mix is one of the effective strategies in this regard, referring to the combination of various land uses (residential, commercial, industrial, green spaces, and recreational areas) within a single area. this approach helps reduce transportation needs, improve resource efficiency, decrease traffic congestion, and enhance urban air quality. additionally, land use mix contributes to economic development, reduces social inequalities, and increases social welfare.regarding new cities in iran, the main objective has been to reduce the population burden on metropolitan areas, but these new cities have not been able to function as suitable alternatives. issues such as lack of economic self-sufficiency, infrastructural weaknesses, and identity deficits have hindered the success of these cities. in particular, the new city of parand faces problems such as a lack of job opportunities and dependence on tehran. therefore, the aim of this study is to assess the relationship between land use mix and urban sustainability based on social, economic, and physical-residential indicators, to assist urban planners in achieving sustainable urban development. methodology: in this study, regression analysis and structural equation modeling (sem) were used to analyze the questionnaire data in order to identify the relationships between variables and their impacts. amos software was utilized for this purpose. the statistical population consisted of 97,464 residents of the new city of parand, and a sample of 400 individuals was selected using simple random sampling and the cochran formula. the data collection tool was a researcher-designed questionnaire with 6 indicators and 31 items. factor analysis was used to assess validity, and cronbach's alpha coefficient was used to evaluate reliability, with results indicating acceptable reliability for all variables with values above 0.7. results: this section of the research focuses on structural equation modeling (sem) using amos software. the initial model includes two independent variables (access to transportation and access to services) and four dependent variables (environmental, managerial, economic, and social sustainability). the results show that this model fits well with the data, with indicators such as chi-square, cmin/df, and gfi demonstrating a good fit between the model and the data.regression weight analysis reveals that access to transportation and access to services have a significant positive impact on different dimensions of sustainability. specifically, access to transportation has the greatest impact on environmental and managerial sustainability, while access to services has the greatest impact on economic and social sustainability.finally, the model is recognized as a valid tool for assessing the relationships between variables and for formulating policies and urban planning strategies. conclusion: the statistical results indicate that the proposed model aligns well with the data. the model fit indices also demonstrate a good match between the model and the data. various analyses show that the impact of land use mix on urban sustainability occurs through access to transportation systems and services, particularly influencing environmental sustainability, managerial sustainability, economic sustainability, and social sustainability. overall, the results suggest that the introduced model can effectively and meaningfully explain the relationships between variables. this information can assist in urban decision-making and planning to enhance urban sustainability and play a significant role in improving citizens' quality of life. keywords: land use mixing, new city, parand, sustainable development, structural equation modeling.