Método para el levantamiento del patrimonio construido mediante técnicas digitales: Puerta de la Colada de la Muralla de Ciudad Rodrigo (Salamanca)

The planimetric's heritage is the starting point in any action. The methodology of data collection and graphical representation are evolving quickly. Most of the techniques used today in the sector are exceeded. The speed in their advance produces a lack of development of its full potential. Nowadays there are techniques and digitalization tools to facilitate and improve data collection process to users. Photogrammetry and laser 3D scanner have marked a before and an after in the work of digitization of the built elements, allowing to streamline data collection and maximizing the information provided Its high geometric precision, thoroughness, performance retrieved and especially the generation of high fidelity and precision of architectural good assets make these tools optimal for the planimetric surveys. Not only they allow the dimensional and morphological study of the heritage, but also the general knowledge in terms of construction techniques, materials and conservation status. The information collected is ideal for all phases of the restoration process: conservation project, implementation of the project and future maintenance. The walls of Ciudad Rodrigo date back to the 12th century and although there have been numerous interventions, there is lack of a precise mapping that matches the reality of the construction. The research focuses on the use of the photogrammetric lifting and laser scanner 3D, both together in one part of the wall of Ciudad Rodrigo: “La Puerta de la Colada”. A method for drawing up protocols on the use of these techniques applied to heritage is prepared, being fundamental in the documentation for restoration, adequacy and accessibility, consolidation, intervention and enhancement projects and virtual recreation of these architectural assets.