Avoidance behaviours while circumventing to the left or right of someone with different shoulder widths and facing directions: How do side, width, or orientation matter?

Bourgaize, Sheryl; McFadyen, Bradford J.; Cinelli, Michael E.

doi:10.1016/j.humov.2023.103071

Cited by 5 publications

(2 citation statements)

References 41 publications

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“…Age of an approaching pedestrian also appears to affect one's avoidance behaviours. Bourgaize et al (2023) found that when an approaching pedestrian looked like an older adult or walked like an older adult, young adults increased their medial-lateral clearance at the time of crossing. These findings highlight the importance of considering a wide range of factors in understanding and predicting pedestrian collision avoidance behaviour.…”

Section: Introductionmentioning

confidence: 95%

Identifying factors that contribute to collision avoidance behaviours while walking in a natural environment

Nikmanesh,

Cinelli,

Marigold

2024

Preprint

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Busy walking paths, like in a park, a sidewalk in a city centre, or a shopping mall, frequently necessitate collision avoidance behaviour. Lab-based research has shown how a variety of situation-specific factors (e.g., distraction, object/pedestrian proximity) and person-specific factors (e.g., pedestrian size, age), typically studied independently, affect avoidance behaviour. What happens in the real world is unclear. Thus, we filmed unscripted pedestrian walking behaviours on a busy ∼3.5 m urban path adjacent to the water. We leveraged deep learning algorithms to identify and extract walking trajectories of pedestrians and had unbiased raters characterize interaction details. Here we analyzed over 500 situations where two pedestrians approached each other from opposite ends (i.e., one-on-one pedestrian interactions). We found that smaller medial-lateral distance between approaching pedestrians and a lower number of surrounding pedestrians (i.e., smaller crowd size) predicted an increase in the likelihood of a subsequent path deviation. Furthermore, we found that whether a pedestrian looked distracted or held, pushed, or pulled something while walking predicted the medial-lateral distance between pedestrians at the time of crossing. Although pedestrians maintained a larger personal space boundary compared to lab settings, this is likely because of the outdoor path’s width. Overall, our results suggest that collision avoidance behaviours in lab and real-world environments share similarities and offer insights relevant to developing more accurate computational models for realistic pedestrian movement.

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Section: Introductionmentioning

confidence: 95%

Identifying factors that contribute to collision avoidance behaviours while walking in a natural environment

Nikmanesh,

Cinelli,

Marigold

2024

Preprint

Self Cite

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“…The protective zone is thought to be elliptical in shape [8], suggesting that the angle in which an object approaches affects individuals' avoidance behaviours. More specifically, previous research has found that avoiding a stationary or moving obstacle on a 180º collision course requires a simple path adjustments [5,7,9]. Conversely, avoiding obstacles or pedestrians approaching on acute angles (45º or 90º) angle involves the coordination of more complex collision avoidance strategies involving both path and speed adjustments [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

The effects of sport-specific training on individuals action strategies while avoiding a virtual player approaching on a 45° angle while completing a secondary task

Thompson,

Cinelli

2023

Preprint

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Sports provide varying scenarios where athletes must interact with and avoid opposing players in dynamic environments. As such, sport-specific training can improve one’s ability to integrate visual information which may result in improved collision avoidance behaviours. However, improved visuomotor capabilities are highly task dependent (i.e., athletes must be tested in sport-specific settings). The current study examined whether sport-specific training influenced individuals’ collision avoidance behaviours during a sport-specific task in virtual reality. Untrained young adults (N=21, 22.9±1.9 yrs, 11 males) and specifically trained athletes (N=18, 20±1.5 yrs, 7 males) were immersed in a virtual environment and were instructed to walk along a 7.5m path towards a goal located along the midline. Two virtual players positioned 2.83m to the left and right of the midline approached participants on a 45° angle at one of three speeds: 0.8x, 1.0x, or 1.2x each participant’s average walking speed. Participants were instructed to walk to a goal without colliding with the virtual players while performing a secondary task; reporting whether a shape changed above either of the virtual players’ heads. Results revealed that athletes had a higher percentage of correct responses on the secondary task compared to untrained young adults. However, there was no group differences in the average time to first avoidance or average minimum clearance, but athletes were more variable in their avoidance behaviours. Findings from this study demonstrate that athletes may be more adaptive in their behaviours and may perform better on attentionally demanding tasks in dynamic environments.

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Collision avoidance behaviours while young adults avoid a virtual pedestrian approaching on a 45° angle under attentionally demanding conditions

Thompson,

Cinelli

2024

Human Movement Science

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Avoidance behaviours while circumventing to the left or right of someone with different shoulder widths and facing directions: How do side, width, or orientation matter?

Cited by 5 publications

References 41 publications

Identifying factors that contribute to collision avoidance behaviours while walking in a natural environment

Identifying factors that contribute to collision avoidance behaviours while walking in a natural environment

The effects of sport-specific training on individuals action strategies while avoiding a virtual player approaching on a 45° angle while completing a secondary task

Collision avoidance behaviours while young adults avoid a virtual pedestrian approaching on a 45° angle under attentionally demanding conditions

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