investigating the role and significance of sustainable urban development in shaping citizens' environmental behavior: a case study of tehran's 1st district

Background: urban spaces that are designed in line with the principles of sustainability play a big role in creating green behavior patterns among citizens. this research aims to investigate the position of environmental design and compliance with the principles of sustainability in cities on the environmental model of citizens. methods: the research uses a quantitative and qualitative and practical approach. the sample size consisted of 884 people, and data was collected through a questionnaire and analyzed with spss software. also, the ucl depthmap software and the space layout method were used to evaluate the structure of the spatial configuration, which has a significant correlation with the design of urban residential areas as indicated by previous studies.results: the results showed that the highest average depth is related to the main entrance streets to valiasr street, tajrish, and chamran highway in tehran with a numerical value of 3.86, while the lowest numerical value recorded was 0.05. the high level of depth value shows that access to other spaces is done by passing through many intermediate spaces, and these spaces lack a clear and direct connection with each other. as a result, these spaces are characterized by limited movement patterns. among the factors considered by citizens, the most influential factor was no urban air pollution, with a coefficient of 0.91, followed by the index of cleanliness of urban roads with a weight of 0.86. the lowest weight belongs to the urban open spaces index, which scored 0.59.conclusion: in conclusion, the establishment of sustainable urban development indicators can prompt behavioral changes in citizens, leading them to align their behavioral patterns with environmental considerations. certain indicators, such as emphasizing air quality, implementing effective waste management practices for green spaces and urban parks, and promoting the presence of tourist attractions in the city, are more important compared to other factors.