Investigating and analyzing the efficiency of urban planning standards in urban construction (Tehran municipality area one)

Today, urban development is influenced more than anything else by the urban construction system, and the approved rules and regulations play a significant role in regulating urban development. In the urban communities of Iran, the rules and regulations defined in the field of urban development, unfortunately, have not been significantly effective, and this has made urban development face serious disturbances.The rules related to construction also undoubtedly have an effective role in achieving the high goals of urban planning, providing health, well-being, beauty, peace, safety and security, and complying with them while providing the aforementioned goals, improves the quality and increases the useful life of buildings. turns Rules and regulations are the means of implementing plans and programs.

The current research has been done with descriptive-analytical method and relying on library resources including documents, books and theses and articles in this field. Field survey and questionnaire data collection have also been used in this research. The statistical population in this research includes experts and university professors and urban management experts, and since this population does not have a specific number, the sample size was determined and estimated by the Cochran method (that is, the sample size is 389 people). In terms of validity, the questionnaire of this research has been met by the professors, and also in terms of reliability, using Cronbach's alpha analysis, a value of 0.88 has been obtained for it, which indicates high reliability. The collected data has been analyzed in the SPSS environment. This section included two areas of descriptive analysis and inferential analysis. In the descriptive analysis section, the characteristics of the respondents in terms of age, gender, education, etc. were discussed, and in the inferential section, t-tests, multivariate regression, and Friedman's test were used.

The results of these tests in terms of the efficiency of the criteria, which were checked using the one-sample t-test and regression, show that the value of the t-test for the components of Article 100 Commission (-18), Article 5 Commission (-15) and Article 55 Commission ( 7-) has been. Also, in the field of the commission component of Article 100, the value of the regression coefficient was 0.005, the commission of Article 5 was 0.001, and for the commission of Article 55, the value was 0.000.

In general, the results of these two tests indicate that the regulations and rules of urban planning in the field of the mentioned commissions have had the least efficiency in the existing constructions in the studied area.