فهرست مطالب الهام آسیابانی پور

Urban life capability as a health standard is snatching called comfort and happiness which has recently been the main concern in geography and urban politics. The word livable cities for the first time in 1970 by the national Arts organization in order to achieve their urban ideas and looking for it by other centers and research organizations such as the environmental protection organizations that has done extensive studies regarding the most of American cities was gone. Following the influence of this word in the literature related to this field can be searched in 1975 and the writings of William Marlins on the fields of livable in Saturday Review and Christian Science Monitor magazines. The concept of capabilities has recently been the main concern of geography and urban politics. In recent years research and development has attracted a lot of attention in livable cities. In the meantime, the cities have faced many challenges in economic, social and environmental issues to day.Tabriz is one of the Iran's oldest cities. Considering the rich historical, economic, cultural, health and industrial backgrounds of Tabriz city, that the city become the first in different areas. To day not only this way the current study aims to assess the environmental sustainability of Tabriz urban environments. It seems that there is a significant difference between the ten regions in terms of livability. Indicators based on this research, we intend to answer this question which is in terms of the livability of ten regions of Tabriz city in different dimensions?

The findings show that the existing situation of Tabriz livability due to the average total of ten regions in all dimensions is in the low level, with this finding of the research of Rashidi (1395) who have evaluated the livability of the Tabriz region in comparison with the Osko, Bostanaba, Shabestar and Harris moderat, is alignment.This findings with the findings of Roustaee (1392) who ranked the region 2 in terms of spatial justice in the distribution of urban services in the first priority is alignment.Also this finding of research with finding of Zarrabi (1394) that the citizens' satisfaction level of urban environment has examined the ten regions of Tabriz and they have concluded that urban region 2 and 5 have been in the first priority of the level of satisfaction is alignment as well as the results of the research with the results of Mofarah Bonab (1397) that the evaluated and analyzed the stability situation in the ten regions of Tabriz and they concluded that the 8th region is the most stable and the 3rd region is the most unstable region in Tabriz is not aligned and only in terms of the whole ten regions of Tabriz have been evaluated by the average Stability value is aligned.

Due to the increasing development of the life- level of Tabriz metropolis, requiring the review of the existing situation. This research has provided new insight in to the livability of Tabriz metropolis that will detect the priorities of action in the decision space.The results show that in general the livability of Tabriz is lower than average which is 5th district of Tabriz city with an average rating of 71/10 has the highest livability in the 10 regions and regions 2, 6, 9, 1, 3, 8, 4, 10 and 7 with an average rating of 69/33, 63/30, 63/10, 62/41, 59/92, 51/55, 35/67, 32/88 and 10/10 ranked second to tenth. Also in terms of indicators of urban services and infrastructure, urban environment, urban economics, urban management, urban history and urban community In order 2, 6, 2, 5, 8 and 5 regions were in the first ranking. According to Kruskal-Wallis results a significant difference between the 10 regions Tabriz of in terms of the desirability of livability indicators.Also, according to the research findings, it is generally concluded that the average obtained in urban services and infrastructure (2/84) is lower than the average and is statistically significant. Because its Sig value is less than 0/05, the average obtained in the urban environment (2/74) is lower than the average and is statistically significant. Because its Sig value is less than 0/05, the average in the urban economy (2/36) is lower than the average and is statistically significant. Because its Sig value is less than 0/05, the average obtained in urban management (2/36) is lower than the average and is statistically significant. Because its Sig value is less than 0/05, the average obtained in urban history (2/39) is lower than the average and is statistically significant. Because its Sig value is less than 0.05 and the average obtained in the urban community dimension (2/98) is lower than the average and is not statistically significant. Because its Sig value (0/650) is greater than 0/05.The results of Kruskal-Wallis test in Tabriz regions indicate that the results achieved in the significance level of 99% and with an error value of less than 0/01 are statistically significant. Therefore, the results can be obtained by the 99% accepted. In other words, with 99% confidence, it can be concluded that there is a significant difference between the indicators of biomass in the 10th district of Tabriz.

The concept of a livable city means to be suitable for living or habitable, which has been very strong today by expanding and intensifying the problems human societies and the loose of quality of life. The word "livable cities" for the first time in1970 by the national Arts organization in order to achieve their urban ideas and looking for it by other centers and research organizations such as the environmental protection organizations that has done extensive studies regarding the most of American cities was gone. Following the influence of this word in the literature related to this field can be searched in 1975 and the writings of William Marlins on the fields of livable  in Saturday Review and Christian Science Monitor. Today, by expanding the problems of human societies and increasing their day to day (problems) has been greatly increased the quality of life indicators of residents of different places. Tabriz is one of the oldest cities in the country with regard to the historical, economic, cultural, health and industrial backgrounds of Tabriz metropolis, which has turned the city in to the first city in different fields. Today not only does not upgrade this roles and functions but also is in annihilation state.Because of its complex and multi-dimensional conceptual and its patterns vary from one region to another. So far a comprehensive model of the impact of the overall livability of cities on the present situation and the relationship between them is not defined. This paper tries to measure the present situation based on the appropriate models of Tabriz and the effect of the dimensions of livability on the situation in objective models based on scientific methods.Hence, the main objective of the present study was to determine the level of livability indices based on their impact on the situation in Tabriz metropolis using structural equation modeling technique.The output of this research helps urban managers and planners have a bright picture of the ecological sector of Tabriz metropolis.This article has been formulated based on scientific study and tracking to answer the following question. What conditions is the current condition of the city of Tabriz in different dimensions? and which indicators should be the first priority of the planners be given the amount of  their impact on the present situation to achieve urban livability in Tabriz  metropolis?

This research is applied in terms of nature and is a descriptive-analytic method. The instrument was a questionnaire the statistical population in this research are the experts and urban managers with complete familiarity with the situation of each region, has a number of 140 people. According to the   volume of society and Morgan table, 104 people selected by non-linear snow bullets and the question have taken place. Then the statues of livability using single sample T-Test and relationship between dimensions and livability in  dices is analyzed with structural equation modeling whit Partial least squares method(PLS).

Due  to the increasing development of the life- level of Tabriz metropolis, requiring the main indicators and influence on the existing situation and communication between them.This research has provided new insight in to the livability of  Tabriz metropolis that will detect the priorities of action in the decision space.Study of analysis of the present analyses regarding the current situation of Tabriz's livability in different dimensions generally, the average obtained in all dimensions (urban services and infrastructure, urban environment, urban economics, urban management, urban history and the urban community) were lower than the average  and the results are not statistically significant only for urban community index that the results of this indicator are not generalized.Also, prioritizing  indicators due to their impact on the present situation to achieve urban livability in Tabriz metropolis shows that highest share of urban services and infrastructure are (providing daily necessities in the neighborhoods, highways access, access to other neighborhoods in the city, access to workplace, the quality of water,  electricity, gas and internet, Bank, quality of public transportation in neighborhoods, public transport work hours and distribution of public transport stations), that pays  attention  to urban managers and planners.Research findings show the current condition of Tabriz's livable situation according to the average of all ten areas in all  dimensions is low that it has alignment with the findings of  Rashidi and colleagues (1395) who have assessed  the livability of Tabriz region in comparison with the Osku, Azarshahr, Bostan Abad, Tabriz, Shabestar and Herris.This findings with the findings of Ali Akbari and Akbari (1396), which has recognized the equitable distribution of facilities and services identified the main livability of the city of Tehran, the study of Aluria (2017) that the factors  affecting  on the quality of life of residents has expressed the distribution of urban services and also the ministry of  Sustainable Management in India (2018) that physical index (with 45%) highest ranking in the livability standards.

This research, based on structural equations analysis shows that the services and urban infrastructure have the highest effect on the present situation of Tabriz metropolis livability In any attempt to improve the livability of Tabriz, it should be considered the role and position of this indicator. The results show that all aspects of livability in Tabriz metropolis have low average. The results of the model also show that among the influence factors on livability status, "urban infrastructure and services" and "urban environment", "urban management", "urban history" and "urban community" factors have a direct and meaning full effect, In the meantime, the  "urban infrastructure and services" factor has the greatest impact which has a motivation of Tabriz  metropolis livability. As a result, any program and attempt to initiate and upgrade of the livability of Tabriz status need attention to the key role of these factors.But what is particularly the achievement of the present study is preparation of appropriate bio-model with the new scientific methodology Partial least squares (PLS) based on present conditions.