The effect of contrast on pedestrians’ perception of vehicle speed in different road environments

Sudkamp, Jennifer; Souto, David

doi:10.1016/j.trf.2022.10.017

Cited by 4 publications

(3 citation statements)

References 41 publications

(61 reference statements)

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“…In Experiment 2, the subjective perception scale of rotation speed was measured for a given set of speed sequences. Overall, Enhancements in rotation speeds led to higher perceived scores for speed, which aligned with previous research ( 11 ; 52 ). The measurement results also demonstrated that shape complexity affects the judgment of the perceptual scale.…”

Section: Discussion Of Experimentssupporting

confidence: 89%

“…Secondly, the physical conditions of the display device, such as imaging technology and screen material, particularly contrast of brightness( 42 ; 52 ), had been shown to affect participants' judgments of JNDS. Higher brightness and contrast levels had been found to enhance participants' ability to discern speed differences( 15 ; 36 ).…”

Section: Discussion Of Experimentsmentioning

confidence: 99%

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Selecting the appropriate speed for rotational elements in human-machine interfaces: A quantitative study

Tong,

Chen,

Zhang

et al. 2024

JEMR

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The motion of rotation, which served as a dynamic symbol within human-computer interfaces, has garnered extensive attention in interface and graphic design. This study aimed to establish speed benchmarks for interface design by exploring visual system preferences for the perception of both simple and complex rotating icons within the velocity range of 5-1800 degrees per second. The research conducted two experiments with 12 participants to examine the observers’ just noticeable difference in speed (JNDS) and perceived speed for rotational icons. Experiment one measured the JNDS over eight-speed levels using a constant stimulus method, achieving a range of 14.9-29%. Building on this, experiment two proposed a sequence of speeds within the given range and used a rating scale method to assess observers ' subjective perception of the speed series' rapidity. The findings indicated that speed increases impacted the ability to differentiate between speeds; key points for categorizing low, medium, and high speeds were identified at 10, 180, and 720 degrees/s, respectively. Shape complexity was found to modulate the visual system's perception of actual speed, such that at rotation speeds above 180 degrees/s, complex icons appeared to rotate faster than simpler ones. Most importantly, the study applied quantitative methods and metrology to interface design, offering a more scientific approach to the design workflow.

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Section: Discussion Of Experimentssupporting

confidence: 89%

Section: Discussion Of Experimentsmentioning

confidence: 99%

Selecting the appropriate speed for rotational elements in human-machine interfaces: A quantitative study

Tong,

Chen,

Zhang

et al. 2024

JEMR

View full text Add to dashboard Cite

show abstract

“…Instead, it could be that the changes in the TTC estimation strategy arose from a higher considered constant velocity or a shorter considered distance at occlusion of the vehicle. In fact, the light band increased the contrast of the depicted approaching vehicle, and the alteration of contrast of an object changes the perceived velocity of the object [ 53 , 54 ]. Also, the perceived distance of an object decreases with increasing brightness contrast between object and background [ 55 , 56 ].…”

Section: Discussionmentioning

confidence: 99%

A binary acceleration signal reduces overestimation in pedestrians’ visual time-to-collision estimation for accelerating vehicles

Wessels,

Oberfeld

2024

Heliyon

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The effects of vehicle color and travel direction on perceived speed error varies by judgment type among older pedestrians

2024

Traffic Injury Prevention

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The effect of contrast on pedestrians’ perception of vehicle speed in different road environments

Cited by 4 publications

References 41 publications

Selecting the appropriate speed for rotational elements in human-machine interfaces: A quantitative study

Selecting the appropriate speed for rotational elements in human-machine interfaces: A quantitative study

A binary acceleration signal reduces overestimation in pedestrians’ visual time-to-collision estimation for accelerating vehicles

The effects of vehicle color and travel direction on perceived speed error varies by judgment type among older pedestrians

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