The Effective Factors on Efficiency of Urban Park (Emphasizing on Its Function and Vitality) The case study: Ellarbaghi park of Urmia city

The citizenry need to do optional and social activities. These activities wont happen unless the demanded public space exists. Function and vitality are indicators of public space's desirability and efficiency. Planning and designing functional spaces for citizenry leads to fulfill a part of urban engineers and city managers responsibility creating spaces for citizenry activities. Park is one of the mentioned spaces. This analytic and practical article is prepared for determination of effectivefactors on efficiency of urban park by emphasizing function and vitality. Documentary and bibliotheca method is used to understand theoretical aspects of this observation and research. Catching citizenry points of views about Ellarbaghi park of Urmia city are made by questionnaires and "Factor Analysis" method and finally mixed them with Excel and Spss software. " Kendall's tau_b and Spearman's rho " correlation analysis" is also used and considered with hypothetical targets of research. Function, tranquility, cleanness, perspective, appropriate management and collectivity of park users are effective factors on efficiency of urban park according to users’ points of view feedback from research circumstances. Examining research hypothesis proves increasing citizenry acquiescence from applicability of various activities in the park as well as functionality of park increase urban park vitality.