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Understanding route choices for wheelchair navigation.

Piyawan Kasemsuppakorn1, Hassan A Karimi, Dan Ding

  • 1School of Science and Technology, University of the Thai Chamber of Commerce , Bangkok , Thailand .

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Personalized routing for wheelchair users improves path quality and reduces travel effort, even if routes are longer. This technique is crucial for navigating unfamiliar environments and addressing mobility impairments.

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Assistive technologyglobal positioning systemroute choiceswheelchair navigation system

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Area of Science:

  • Rehabilitation Engineering
  • Human-Computer Interaction
  • Mobility Studies

Background:

  • Shortest route algorithms often fail to meet the needs of wheelchair users.
  • Environmental factors like slope and surface condition significantly impact wheelchair navigation.
  • Personalized routing considers individual preferences and environmental characteristics.

Purpose of the Study:

  • To validate a personalized routing technique for manual wheelchair users.
  • To understand wheelchair users' route choices and preferences.
  • To assess the necessity and importance of personalized routes for mobility-impaired individuals.

Main Methods:

  • Utilized the Absolute Restriction Method (ARM) for personalized route computation based on user preferences.
  • Evaluated the technique with five manual wheelchair users through pre-activity, activity, and post-activity sessions.
  • Compared personalized routes against shortest feasible routes regarding route characteristics and user-rated parameters.

Main Results:

  • Personalized routes were 14.64% longer than shortest feasible routes but offered superior path quality (slope, surface).
  • Four out of five participants rated key parameters higher for personalized routes.
  • Users reported better path quality and less travel effort with personalized routes.

Conclusions:

  • The shortest route is not always optimal for individuals with mobility impairments.
  • Personalized routing is a promising approach to mitigate navigation challenges for manual wheelchair users in new environments.
  • Wheelchair users emphasize the importance of personalized routes for enhancing mobility and independence.