Walkway Safety Evaluation and Hazards Investigation for Trips and Stumbles Prevention

  • Atena Roshan FekrEmail author
  • Gary Evans
  • Geoff Fernie
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 819)


Falls are a major healthcare concern especially in the older population and tripping is a primary cause. Tripping is defined biomechanically as an event at which the lowest part of the foot makes unanticipated contact with either the walking surface or objects during the swing phase of the gait cycle. Identifying an obstacle or uneven surface as a tripping hazard is a subjective assessment, particularly when considering the vulnerabilities of people with knee/hip replacement, stroke, Parkinson disease and osteoarthritis. There is no universally accepted measurement tool or interpretation of the hazards. Walkways can pose a serious risk of tripping and falling because of different factors such as overloading, frost heave, and tree roots. The main goal of this study is to provide a new solution for extracting features of walkway tripping hazards that can be correlated with the Probability of Tripping (PoT). A new scanning device is proposed which uses an array of Time-of-Flight sensors. Before extracting the features we need to make sure the proposed device will provide us accurate measurements. Therefore, in this paper, we have addressed the main challenges associated with accurate sensor readout in a multi-sensory system. The results show that the presented scanning device will provide readouts with accuracy of ±2.5 mm.


Falls Trips Stumbles Time of Flight (ToF) 


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Toronto Rehabilitation Institute—University Health NetworkUniversity of TorontoTorontoCanada

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