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Related Experiment Video

Updated: May 11, 2026

Using a Virtual Reality Walking Simulator to Investigate Pedestrian Behavior
06:38

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Published on: June 9, 2020

Collision avoidance between two walkers: role-dependent strategies.

Anne-Hélène Olivier1, Antoine Marin, Armel Crétual

  • 1Laboratoire Mouvement Sport Santé (M2S), UFRAPS, Université Rennes 2-ENS Cachan, Avenue Charles Tillon, CS24414, 35044 Rennes, France; INRIA, Centre de Rennes Bretagne Atlantique, Campus Universitaire de Beaulieu, 263 avenue du Général Leclerc, 35042 Rennes, France.

Gait & Posture
|May 14, 2013
PubMed
Summary
This summary is machine-generated.

Collision avoidance is a collaborative effort. When people walk across paths, the person yielding adjusts their speed and path more than the person passing first to prevent collisions.

Keywords:
Collision avoidanceGait adaptationsInteractionLocomotionRole-dependant strategies

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Area of Science:

  • Human-Computer Interaction
  • Robotics
  • Biomechanics

Background:

  • Humans can anticipate and avoid collisions during locomotion.
  • Collision avoidance is often described as controlling the minimum predicted distance (MPD).

Purpose of the Study:

  • To investigate the distinct roles and strategies of individuals in collaborative collision avoidance.
  • To determine if yielding and non-yielding walkers employ similar or coordinated strategies.

Main Methods:

  • Analysis of motion adaptations in relation to the minimum predicted distance (MPD).
  • Examining subtle anticipatory behaviors versus last-moment adaptations in collision avoidance.

Main Results:

  • Collision avoidance is a collaborative task where crossing order influences strategies.
  • The walker yielding contributes more significantly to collision avoidance than the walker passing first.
  • Both individuals adjust their paths, but the yielding walker also modifies their speed.

Conclusions:

  • Collision avoidance strategies are adapted based on the role (yielding or passing first).
  • The yielding individual takes greater responsibility for maintaining safe distances.
  • Future research will explore effects of crossing angle, time-to-collision (TTC), and different interaction types.