Journal cover Journal topic
Proceedings of the ICA
Journal topic
Articles | Volume 4
Proc. Int. Cartogr. Assoc., 4, 66, 2021
Proc. Int. Cartogr. Assoc., 4, 66, 2021

  03 Dec 2021

03 Dec 2021

Effect of Geospatial Uncertainty Borderization on Users’ Heuristic Reasoning

Lorenzo Libertini1, Ekaterina Chuprikova2, and Liqiu Meng3 Lorenzo Libertini et al.
  • 1International M.Sc. of Cartography, Chair of Cartography, Technical University of Munich, Germany
  • 2Centre for Sensing Solutions, EURAC research
  • 3Chair of Cartography, Department of Aerospace and Geodesy, Technical University of Munich, Germany

Keywords: uncertainty visualization, heuristics, borderization, cognitive science

Abstract. A set of mental strategies called "heuristics" – logical shortcuts that we use to make decisions under uncertainty – has become the subject of a growing number of studies. However, the process of heuristic reasoning about uncertain geospatial data remains relatively under-researched. With this study, we explored the relation between heuristics-driven decision-making and the visualization of geospatial data in states of uncertainty, with a specific focus on the visualization of borders, here termed "borderization". Therefore, we tested a set of cartographic techniques to visualize the boundaries of two types of natural hazards across a series of maps through a user survey. Respondents were asked to assess the safety and desirability of several housing locations potentially affected by air pollution or avalanches. Maps in the survey varied by "borderization" method, background color and type of information about uncertain data (e.g., extrinsic vs. intrinsic). Survey results, analyzed using a mixed quantitative-qualitative approach, confirmed previous suggestions that heuristics play a significant role in affecting users' map experience, and subsequent decision-making.

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