Crosswalk time estimation and time perception: An experimental study among older female pedestrians

Naveteur, Janick; Delzenne, J.; Sockeel, Pascal; Watelain, Éric; Dupuy, Marion

doi:10.1016/j.aap.2013.08.014

Cited by 22 publications

(13 citation statements)

References 38 publications

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“…It may also explain why older pedestrians prefer to use signalized pedestrian crossings more than do young pedestrians (Bernhoft and Carstensen, 2008). However, older adults often underestimate the time they need to cross the street: their actual crossing times are significantly longer than the crossing times they estimate before or after crossing (Naveteur et al, 2013;Zivotofsky et al, 2012). This kind of underestimation occurs especially for younger older adults (60-74 years old) whereas older adults (75 years old or more) tend to overestimate their crossing time (Holland and Hill, 2010).…”

Section: Impact Of Self-perception and Self-regulationmentioning

confidence: 99%

“…Given their fear of falling (e.g., Scheffer et al, 2008) and their need to keep their balance when walking (Woollacott and Tang, 1997), older pedestrians seem to allocate more attention to watching their steps as they cross, causing them to at least partly disregard approaching traffic (Avineri et al, 2012). The presence of curbs at the beginning and end of a street-crossing task may add supplementary cognitive and motor demands that very few studies have examined in a detailed manner (see e.g., Naveteur et al, 2013).…”

Section: Walking and Gait Characteristicsmentioning

confidence: 99%

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Review of safety and mobility issues among older pedestrians

Tournier

Dommès²,

Cavallo³

2016

Accident Analysis & Prevention

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a b s t r a c tAlthough old people make up an extremely vulnerable road-user group, older pedestrians' difficulties have been studied less extensively than those of older drivers, and more knowledge of this issue is still required. The present paper reviews current knowledge of older-adult problems with the main components of pedestrian activity, i.e., walking and obstacle negotiation, wayfinding, and road crossing. Compared to younger ones, old pedestrians exhibit declining walking skills, with a walking speed decrease, less stable balance, less efficient wayfinding strategies, and a greater number of unsafe road crossing behaviors. These difficulties are linked to age-related changes in sensorial, cognitive, physical, and self-perception abilities. It is now known that visual impairment, physical frailty, and attention deficits have a major negative impact on older pedestrians' safety and mobility, whereas the roles of self-evaluation and self-regulation are still poorly understood. All these elements must be taken into consideration, not only in developing effective safety interventions targeting older pedestrians, but also in designing roads and cars. Recent initiatives are presented here and some recommendations are proposed.

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Section: Impact Of Self-perception and Self-regulationmentioning

confidence: 99%

Section: Walking and Gait Characteristicsmentioning

confidence: 99%

Review of safety and mobility issues among older pedestrians

Tournier

Dommès²,

Cavallo³

2016

Accident Analysis & Prevention

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“…The presence of curbs at the beginning and at the end of the present street-crossing task may add supplementary cognitive and motor demands that very few studies have precisely examined. Recently, Naveteur et al (2013) observed that curbs led to longer crossing durations, and that this effect tended to increase with ageing and with the fear of falling. As compared to younger adults, the supplementary time for older pedestrians to step on and off the curbs may reveal motor difficulties with ageing that affect their time for crossing, but this may also reveal greater attentional demands devoted to the current task (i.e.…”

Section: Discussionmentioning

confidence: 98%

“…The study of such gait parameters could be particularly interesting in situations where pedestrians manage the presence of curbs. This has been little studied in the context of street crossing (Knoblauch et al, 1996;Naveteur et al, 2013), despite the fact that many older pedestrians have reported difficulties in negotiating curbs (Coffin and Morrall, 1995). Obstacle negotiation becomes a challenging task with ageing; indeed, it is among the most commonly reported causes of falls (Campbell et al, 1990).…”

Section: Introductionmentioning

confidence: 97%

Towards an explanation of age-related difficulties in crossing a two-way street

Dommès¹,

Lay²,

Vienne³

et al. 2015

Accident Analysis & Prevention

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Crossing a two-way street is a complex task that involves visual, cognitive and motor abilities, all of which are known to decline with ageing. In particular, older pedestrians may experience difficulties when crossing two-way streets because of incorrect gap acceptance choices and impossible or unperceived evasive actions. To understand the overrepresentation of older pedestrians in crash statistics, several experimental studies have sought to identify traffic-related factors as well as those related to the abilities of the individuals themselves. However, none of these studies has required participants to actually walk across an experimental two-way street with curbs, which is a particularly challenging situation for older pedestrians. To fill this research gap, a quasi-experiment was conducted in a simulator including a total of 58 healthy aged participants (25 younger-old [age 60-72] and 33 older-old [age 72-92]) and 25 young adults (aged 18-25 years). Participants carried out a street-crossing task in a simulated two-way traffic environment; curbs were present on both sides of the experimental street. Participants also undertook a battery of tests to assess their visual and cognitive abilities. In addition, during the experiment, the participants' gait parameters were recorded. In line with earlier findings, the older-old group of participants made a higher number of decisions that led to collisions with approaching cars compared with the other groups. The two groups of older participants experienced specific difficulties when vehicles were in the far lane or when they approached rapidly. A regression analysis identified visual acuity, speed of processing (assessed using the UFOV(®) test), and step length as significant predictors of collisions. Our results have implications for understanding the difficulties experienced by older pedestrians and allow to draw up several recommendations for improving their safety.

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“…Previous studies on self-awareness of physical function in elderly individuals have utilized a method that measures the time or distance of the imagined performance of a movement without actual physical execution of the movement1,2,3,4,5,6,7,8 ) . The method used for such a temporally predictive task is called the ‘mental chronometry’ method.…”

Section: Introductionmentioning

confidence: 99%

The relationship between physical function in the elderly and judgment error in walking speed

Sakamoto

Ohashi

2017

J Phys Ther Sci

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[Purpose] “Judgment error,” defined as a difference between the actual and the imagined performance, is often observed in elderly persons. The aims of this study were to assess subjective judgment errors in elderly persons, and to evaluate the relationship between physical function and judgment error in walking speed. [Subjects and Methods] A total of 106 community-dwelling elderly individuals participated. Subjects observed video footage of a model walking an obstacle course, and were asked to subjectively compare the model’s gait speed with their own gait speed. When the subjective comparison differed from the actual difference, it was considered as a judgment error. Physical function was compared between those with and without judgment error. [Results] Significant interaction effects between the actual performance and subjective perception were found for the walking time on the obstacle course and the Activities-specific Balance Confidence Scale score (utilized as an index of self-confidence in own balance ability and a fear of falling). [Conclusion] The results demonstrate that some elderly persons tend to overestimate their balance and ambulation function compared to another person, even though they had low physical function and low self-confidence in terms of balance. These elderly individuals might have a high risk of accidents.

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Crosswalk time estimation and time perception: An experimental study among older female pedestrians

Cited by 22 publications

References 38 publications

Review of safety and mobility issues among older pedestrians

Review of safety and mobility issues among older pedestrians

Towards an explanation of age-related difficulties in crossing a two-way street

The relationship between physical function in the elderly and judgment error in walking speed

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