Identifying what constitutes complexity perception of decision points during indoor route guidance

Laure De Cock (Corresponding author), Kristien Ooms, Nico Van de Weghe, Nina Vanhaeren, Pieter Pauwels, Philippe De Maeyer

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
6 Downloads (Pure)


To be able to design indoor wayfinding systems that adhere better to the needs of the users, user perception on complexity needs to be examined and linked to user characteristics and decision point characteristics. To identify how these characteristics influence perception, an online survey is executed in which participants had to indicate how complex they found a decision point, while interpreting a route instruction. The results show that complexity ratings depend both on user characteristics and on the function of the decision point. Decision points to change levels, start or end a route and to take turns each received significantly different complexity ratings. Isovist and visibility graph analysis characteristics of these decision points show that the first two actions were perceived as more complex when they took place in a narrow hallway, while the third action was perceived as more complex in a convex space. The results of this study can be used in the design of an adaptive wayfinding system that adapts the route instructions to the perceived decision point complexity. This adaptation will adhere better to the needs of the users compared to an adaptation based on solely theoretical complexity.
Original languageEnglish
Pages (from-to)1232-1250
Number of pages19
JournalInternational Journal of Geographical Information Science
Issue number6
Early online date29 Jan 2020
Publication statusPublished - 4 May 2021


  • visibility graph analysis
  • Indoor navigation
  • mobile wayfinding aid
  • complexity perception
  • isovist


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