Analyzing accessibility barriers using cost-benefit analysis to design reliable navigation services for wheelchair users

Benjamin Tannert, Reuben Kirkham, Johannes Schöning

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2 Citations (Scopus)


This paper explores ‘A to B’ routing tools designed to chart accessible routes for wheelchair users. We develop and present a novel measurement framework based upon cost-benefit analysis in order to evaluate the real-world utility of routing systems for wheelchair users. Using this framework, we compare proposed routes generated by accessibility tools with the pedestrian routes generated by Google Maps by means of conducting expert assessments of the situation on the ground. Relative to tools aimed at pedestrians, we find that these tools are not significantly more likely to produce an accessible route, and more often than not, they present longer routes that arise from imaginary barriers that do not exist in the real world. This analysis indicates how future routing tools for wheelchair users should be designed to ensure that they genuinely ameliorate the effects of accessibility barriers in the built environment.
Original languageEnglish
Title of host publicationHuman-Computer Interaction – INTERACT 2019
Subtitle of host publication17th IFIP TC 13 International Conference Paphos, Cyprus, September 2–6, 2019 Proceedings, Part I
EditorsDavid Lamas, Fernando Loizides, Lennart Nacke, Helen Petrie, Marco Winckler, Panayiotis Zaphiris
Place of PublicationCham Switzerland
Number of pages22
ISBN (Electronic)9783030293819
ISBN (Print)9783030293802
Publication statusPublished - 2019
EventIFIP TC13 Conference on Human-Computer Interaction 2019 - Paphos, Cyprus
Duration: 2 Sept 20196 Sept 2019
Conference number: 17th (Proceedings)

Publication series

NameLecture Notes in Computer Science
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


ConferenceIFIP TC13 Conference on Human-Computer Interaction 2019
Abbreviated titleINTERACT 2019
Internet address


  • Accessibility
  • Disability
  • Wheelchair users
  • Pedestrian navigation
  • Routing

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