This article presents, starting from data collection applied to graphical design, the development of GERAPLACA software which helps designers to create signaling plates and street plates of standardized form with respect to the choice of font, layout, production comments, finishing and installation, in order to avoid the subjectivism that favors the inefficiency of furniture. This software allows the integration of urban planning and graphic design, has low production costs , unifies the languages among professionals from diverse backgrounds who work with urban furniture. The methology for the creation of plates and the results obtained with the software are presented below.