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Three-dimensional tactile symbols produced by 3D Printing: Improving the process of memorizing a tactile map key
Gual Ortí, Jaume; Puyuelo, Marina; Lloveras Macià, Joaquín
Universitat Politècnica de Catalunya. Departament de Projectes d'Enginyeria; Universitat Politècnica de Catalunya. PITP - Projectes d´Innovació Tecnològica de Productes
The aim of this article is to determine whether the process of memorizing a tactile map key, or legend, can be improved by including three-dimensional (3D) symbols produced by means of 3D Printing. The method used in this study involved asking a group of 20 volunteers with different profiles to memorize eight tactile symbols from two keys, each of which had different characteristics: Key 2 included 3D tactile symbols and Key 1 had only two-dimensional (2D) tactile symbols. Results show statistically significant differences between the two keys. Use of Key 2 yielded a 48.72% reduction in the number of errors compared to Key 1 (N = 20, p-value = .014). These data show that combining 3D with flat relief symbols (2D) improves the process of memorizing a tactile key because the 3D attributes can be distinguished from the 2D features by touch. For practitioners, this article provides data about the possibilities of 3D Printing applied to tactile maps, keys, and symbols.
Àrees temàtiques de la UPC::Enginyeria civil::Geomàtica::Sistemes d'informació geogràfica
Maps - Symbols
Map printing
Tactile map
Tactile symbols
Tactile key
tactile symbol
Visual impairment
Mapes--Símbols
Mapes--Impressió
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/publishedVersion
Article
Sage
         

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