عنوان مقاله [English]
Nowadays, the sociology of urban space has been the focus of researchers in urban planning and design fields. This has caused the cities and urban spaces within these cities to be considered more than the bodies in them and the relatively large structures in which they were built. In comparison with other sociological factors, vitality in urban spaces is a factor that has been given special attention. This kind of expectations would arise immediately after the introduction of the urban space in the minds of citizens. In fact, one of the most promising expectations of people from urban spaces is the dynamism and liveliness of that space, which is understood as the concept of urban vitality. It seems that the factor that plays a vital role in creating this vitality is the existence of activities in the context of urban spaces. The research tries to investigate the effect of existing activity patterns on the vitality of urban spaces. The Vali Asr Crossroad in Tehran have been identified as a key point in the heart of Tehran and in the structure of Tehran, and It is a totally urban space full of activity patterns, but studies show that vitality in this space is not at the optimal level. For this reason, the study of vitality based on activity patterns in this important urban space is investigated. In the analytical section, a questionnaire based on a conceptual model was designed and then a regression model was used to analyze the results.The results show that the factor of performance as a vital variable in promoting social interactions and as a result of creating vitality at the Vali Asr crossroad plays an important role. Meanwhile, the two factors of static / dynamic activity and diversity at Vali Asr crossroad are factors weakening social interactions and urban vitality.