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- Title
Evaluating the information value of tactile maps.
- Authors
Wabiński, Jakub; Mościcka, Albina; Kuźma, Marta
- Abstract
People who are blind or visually impaired use tactile maps, read by the sense of touch. In this research we assessed the information value of tactile maps, i.e. the extent to which the map reader gains the intended/needed information from the map. Methods usually used for assessing traditional (visual) maps have been adopted to evaluate two tactile maps presenting the same phenomenon but produced using different techniques: transparent relief print imposed on a colored base and 3D printing. In order to assess the information value of tactile elements on both maps, we have calculated structural measure of information, in a way proposed by Salistchev that bases on methods of mathematical information theory, and the information efficiency coefficient of a map, proposed by Grygorenko. This research was motivated by two research questions: 1. How does the production method used affect the cartographic information value of the tactile map? 2. Can the methods for computing map information value on traditional maps be applied to tactile maps? The results suggest that use of 3D printing, or any other manufacturing technology that allows full freedom in height differentiation of cartographic signs, makes it possible to increase the information value of a particular tactile map. This might allow tactile cartographers to design cartographic materials of higher value and to distribute the map content in a more efficient way.
- Subjects
TACTILE maps; MAPS for people with visual disabilities; CARTOGRAPHY; MAP design; DATA visualization
- Publication
Abstracts of the ICA, 2021, Vol 3, p1
- ISSN
2570-2106
- Publication type
Article
- DOI
10.5194/ica-abs-3-308-2021