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Quantifying Mobility Scooter Performance in Winter Environments.

Roger E Montgomery1, Yue Li1, Tilak Dutta2

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Mobility scooters struggle in snow and ice, failing on slopes and corners. Winter tires improve performance on icy inclines, suggesting a need for winter-ready designs and accessories.

Keywords:
Architectural accessibilityClimateIceQuality of lifeRehabilitationSafetySelf-help devicesSnow

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Area of Science:

  • Rehabilitation Engineering
  • Biomechanics
  • Assistive Technology

Background:

  • Mobility scooters are crucial for individuals with mobility impairments.
  • Performance in cold, snowy, and icy conditions is largely unquantified.
  • Existing scooter designs may not be suitable for winter environments.

Purpose of the Study:

  • To assess the performance of various mobility scooter models on snow, ice, and concrete in cold temperatures.
  • To evaluate the effectiveness of winter tires in improving mobility scooter performance in winter conditions.

Main Methods:

  • Cross-sectional study involving eight mobility scooter models tested by two drivers.
  • Testing included ramp ascent/descent and cornering on concrete, 2.5-cm snow, and bare ice surfaces.
  • Winter tires were evaluated on ice and melting ice surfaces for ramp ascent capabilities.

Main Results:

  • All tested scooters significantly underperformed on snow and ice, with many unable to ascend a 4.8° slope.
  • Forward downslope performance on snow and ice was particularly unsatisfactory.
  • Winter tires demonstrated an enhanced maximum achievable angle (MAA), enabling ascent on icy slopes.

Conclusions:

  • Current mobility scooter designs are inadequate for winter conditions, rendering ADA-compliant ramps impassable.
  • Scooter manufacturers should consider offering winter tires as an accessory for regions with snow and ice.
  • Further research and standardized testing are needed to establish winter performance benchmarks for mobility scooters.