Sculpture as an artwork in urban space; except being a decorative element with an aesthetic value, denotes and connotes meanings beyond itself, reflects social and cultural structure and gives vitality and meaning to urban life. Sculptural installations can be effective elements in the shaping and use of spaces as well as defining and making sense of them. In the perception of these installations, it is generally considered that the characteristics of the area where they are located and the urban scene which forms the background image carry importance. The focus of this study is to reveal the optimum characteristics of installation areas to succeed a better transmission of meanings that the artist intends to convey through his/her sculpture. With this aim, a semiotic model was constituted based on Dewey's theory of aesthetic experience, Gestalt theory of perception and Pierce's semiotic model. The effect of the characteristics of installation area for the signification process was tried to be clarified with the help of the proposed model. The results obtained through the analysis of urban sculptures in central Adana revealed that the characteristics of installations have an effective role in perception and signification of them.