Comparative study of three development periods of Shahid Beheshti Street in Karaj from the point of view of effective indicators in improving environmental quality

Environmental quality is a multidimensional concept that has common points with concepts such as quality of life, quality of place, perception and satisfaction of citizens. It can be considered one of the most important tasks of urban planners and designers to improve environmental quality. Urban streets, as one of the constituent elements of the structure of cities, which have the main effect in improving or reducing the environmental quality of the city, have been reduced to a path only to solve the problem of vehicle traffic. This issue is also true for Shahid Beheshti Street in Karaj, on which the initial core of the city was formed. The purpose of this research is to investigate the effect of effective indicators in improving the environmental quality of the said street for three specific periods of development in order to determine the extent of their use in the design and its effect in improving the environmental quality of the street. The statistical population of this research includes 20 experts from Karaj city who are related to this field. The tool for collecting information is a questionnaire, which was designed based on theoretical foundations and research. The results obtained from the independent one-sample T-test analysis show that in the three mentioned development periods, for the design and expansion of the communication network of Shahid Beheshti Street in Karaj, less attention was paid to the indicators effective in improving the quality of the environment in order to become a lively and activated space. Is. Although it was done using Tukey's test and ranking, all three periods compared to the previous period had a relatively better situation in applying the indicators to improve the environmental quality of the above street.