Perception of Affordance in Children and Adults While Crossing Road between Moving Vehicles

Azam, Muhammad; Choi, Gyung‐Min; Chung, Hyun-Chae

doi:10.4236/psych.2017.87068

Cited by 7 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This suggests that adults preferred were better calibrated to the information and made decisions when the road was safe to cross, a strategy which was not present in the group of children. This finding is consistent with previous literature that examined age-related threshold points where children perceived the switch from an unsafe gap to a safe gap sooner than adults (Azam, Choi, & Chung, 2017).…”

Section: Discussionsupporting

confidence: 92%

Age-related differences in the perception of gap affordances: Impact of standardized action capabilities on road-crossing judgements

Stafford

Whyatt

Craig

2019

Accident Analysis & Prevention

View full text Add to dashboard Cite

Recent road-crossing literature has found that older adults show performance differences between estimation and perception-action tasks suggesting an age-related difficulty in accurately calibrating the information picked up from the surrounding environment to their action capabilities (Lobjois & Cavallo, 2009). The present study investigated whether participants could accurately perceive gap affordances via information that specifies the timeto-arrival of the approaching cars. To ensure the opportunities for action were the same across different age groups, independent of the actor's action capabilities, the action of crossing the road was standardised. A total of 45 participants (15 children, aged 10-12, 15 adults aged 19-39, 15 older adults aged 65+) were asked to judge, by pressing a button in a head-mounted display, whether the gap between oncoming cars afforded crossing. When the participant pressed the button, they moved across the road at a fixed speed. Adherence to a time-based variable (namely tau) explained 85% and 84% of the variance in both the children and adults' choices, respectively. Older adults tuned less into the time-based variable (tau) with it only accounting for 59% of the variance in road-crossing decisions. These findings suggest that, the ability to use tau information which specifies whether a gap affords crossing or not, deteriorates with age.

show abstract

Section: Discussionsupporting

confidence: 92%

Age-related differences in the perception of gap affordances: Impact of standardized action capabilities on road-crossing judgements

Stafford

Whyatt

Craig

2019

Accident Analysis & Prevention

View full text Add to dashboard Cite

show abstract

“…Practice trials were performed prior to the experiments to familiarize each participant with the treadmill and virtual environment before the experiment. (see [4] for details).…”

Section: Data Collectionmentioning

confidence: 99%

“…Pedestrians make up a large portion of traffic accident fatalities, particularly in areas of high population density [1,2]. Exploring the behavioral dynamics of road crossing may provide insight into the fundamental source of accidents [2][3][4]. The task of crossing a road involves a goal-directed movement, as the pedestrian desires to reach the other side of the street subject to the avoidance condition due to passing vehicles.…”

Section: Introductionmentioning

confidence: 99%

Behavioral Dynamics of Pedestrians Crossing between Two Moving Vehicles

Kim

Chung

et al. 2020

Applied Sciences

Self Cite

View full text Add to dashboard Cite

This study examines the human behavioral dynamics of pedestrians crossing a street with vehicular traffic. To this end, an experiment was constructed in which human participants cross a road between two moving vehicles in a virtual reality setting. A mathematical model is developed in which the position is given by a simple function. The model is used to extract information on each crossing by performing root-mean-square deviation (RMSD) minimization of the function from the data. By isolating the parameter adjusted to gap features, we find that the subjects primarily changed the timing of the acceleration to adjust to changing gap conditions, rather than walking speed or duration of acceleration. Moreover, this parameter was also adjusted to the vehicle speed and vehicle type, even when the gap size and timing were not changed. The model is found to provide a description of gap affordance via a simple inequality of the fitting parameters. In addition, the model turns out to predict a constant bearing angle with the crossing point, which is also observed in the data. We thus conclude that our model provides a mathematical tool useful for modeling crossing behaviors and probing existing models. It may also provide insight into the source of traffic accidents.

show abstract

Autonomous vehicles and street design: Exploring the role of medians in enhancing pedestrian street crossing safety using a virtual reality experiment

Joo¹,

Kim²,

Kim³

et al. 2023

Accident Analysis & Prevention

View full text Add to dashboard Cite

Perception of Affordance in Children and Adults While Crossing Road between Moving Vehicles

Cited by 7 publications

References 20 publications

Age-related differences in the perception of gap affordances: Impact of standardized action capabilities on road-crossing judgements

Age-related differences in the perception of gap affordances: Impact of standardized action capabilities on road-crossing judgements

Behavioral Dynamics of Pedestrians Crossing between Two Moving Vehicles

Autonomous vehicles and street design: Exploring the role of medians in enhancing pedestrian street crossing safety using a virtual reality experiment

Contact Info

Product

Resources

About