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How do vision and hearing impact pedestrian time-to-arrival judgments?
JulieAnne M Roper1, Shirin E Hassan
1*OD, MS †BAppSc(Optom), PhD, FAAO Indiana University School of Optometry, Bloomington, Indiana.
Summary
Men and women use sight and sound differently for judging vehicle arrival times. Males were more accurate using only hearing for shorter distances, while females
Area of Science:
- Human perception and sensory integration.
- Auditory and visual cue utilization in dynamic environments.
Background:
- Accurate time-to-arrival (TTA) judgments are crucial for pedestrian safety.
- Understanding how sensory modalities influence TTA estimation is vital for road safety research.
Purpose of the Study:
- To compare the accuracy of time-to-arrival (TTA) judgments in male and female pedestrians.
- To investigate how sensory conditions (vision and hearing vs. hearing only) affect TTA accuracy.
Main Methods:
- Participants (10 male, 14 female) estimated vehicle TTA under two sensory conditions.
- Actual TTA was measured using sensors; errors were calculated.
- Adjustments were made for individual timing biases ('internal metronome').
Main Results:
- TTA judgment error varied significantly with actual TTA and sensory condition.
- Gender did not have a main effect, but TTA judgment patterns differed between genders.
- Males were more accurate using hearing only for TTA < 5 seconds; females showed consistent accuracy across conditions.
Conclusions:
- Males and females utilize visual and auditory information differently for TTA judgments.
- Sensory condition did not impact female TTA accuracy, but males initially benefited from hearing only.
