From Plan to HBIM in Zaragoza to Canfranc Passenger Buildings

Architectural drawing allows us to transcend the flatness of a two-dimensional surface and represent three-dimensional ideas in a clear, understandable, and convincing manner (Ching, 1974). Drawing is the tool in architecture to represent ideas, solutions, or projects that we want to carry out. When studying Architectural Heritage, the potential of graphic expression to represent the existing, analyze its condition, and propose possible actions is undeniable. Cultural assets are objects of material culture; they are historical documents that need to be preserved through graphic documentation (VVAA 2018). The use of increasingly sophisticated tools and techniques allows for optimizing the level of detail of each graphic document efficiently for each situation. Technological advances have led to the emergence of new tools that transform our ways of recording reality and, therefore, understanding it (Fornos, 2012). This document presents the different techniques carried out for the digitization and study of the railway architecture from Zaragoza to Canfranc, specifically focusing on passenger buildings at some stations.