Guiding drivers towards safer driving speed: Exploiting visual dominance in speed adaptation

Köhler, Anna-Lena; Koch, Iring; Ladwig, Stefan

doi:10.1016/j.trf.2022.09.011

Cited by 9 publications

(21 citation statements)

References 38 publications

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“…Understanding the mechanisms in speed perception can help to develop better interventions. The present two experiments investigated the role of visual stimuli in speed perception based on a dynamic light-based intervention that led to lower driving speeds in a previous simulator study and field test (Köhler et al, 2022 ). Our findings show that oncoming lights lead to lower perceived traveling speed, but only when there are no other salient visual stimuli that support speed perception.…”

Section: Significance Statementmentioning

confidence: 99%

“…This unstable connection between objective and subjective perception is a factor especially when it comes to the distortion of speed perception when slowing down after a long time traveling at higher speeds, which is called the speed adaptation effect (Denton, 1966 ). Stimuli in several perceptual modalities, such as proprioceptive (Kemeny & Panerai, 2003 ), vestibular (Macadam, 2003 ), or haptic information (Sigrist et al, 2013 ), can influence speed perception, with visuospatial stimuli likely having the biggest influence (see Köhler et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

“…As Gibson ( 1950 ) and Krüger et al ( 1999 ) indicated, drivers are constantly monitoring both their own position and that of their vehicle in the driving environment. Therefore, speed control of a vehicle can be regarded a spatial control task (see also Köhler et al, 2022 ). This is supported by Ward et al ( 2000 ), who stressed that vision is more prominent in spatial localization tasks than, for example, auditory information (see Lukas et al, 2010 , 2014 ).…”

Section: Introductionmentioning

confidence: 99%

“…These countermeasures to speeding suggested that visuospatial stimuli have the potential to influence driver’s speed selection. To prevent situations in which drivers might not be aware of inappropriate speed, Köhler et al ( 2022 ) conceptualized and studied a countermeasure to speeding by aiming at giving drivers an impression to be driving faster than they did, similar to the described studies with transverse line markings (Bergh Alvergren et al, 2019 ; Ding et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

“…In a driving simulator study followed by a field test, Köhler et al ( 2022 ) tested lights that were installed on both sides of the road, being activated if a driver approached at too high driving speeds. They investigated the influence of visual stimuli on speed adaptation in the form of red light-emitting spots.…”

Section: Introductionmentioning

confidence: 99%

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Investigating the influence of visuospatial stimuli on driver’s speed perception: a laboratory study

Köhler,

Klatt,

Koch

et al. 2023

Cogn. Research

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Driving at an inappropriate speed is a major accident cause in the EU. Understanding the underlying sensory mechanisms can help to reduce speed and increase traffic safety. The present study investigated the effect of visuospatial stimuli on speed perception using an adaptive countermeasure to speeding based on a manipulation of optic flow. We added red lights on both sides of a simulated road. We expected speed to be perceived as faster when lights moved toward drivers due to increased optic flow, whereas we expected static light stimuli to not alter the optic flow and thus not influence speed perception. Two experiments applied the method of constant stimuli. To this end, participants encountered several trials of two video sequences on a straight road. A reference sequence showed the same traveling speed while test sequences varied around different traveling speeds. Participants indicated which sequence they perceived as faster, leading to the calculation of the point of subjective equality (PSE). A lower PSE indicates that the speed in this experimental condition is perceived as faster than in another experimental condition. Experiment 1A did not show a difference between PSEs of static and oncoming lights. Because participants had counted reflector posts for speed estimation, we removed these reflector posts in Experiment 1B and found a lower PSE for oncoming lights. Thus, such light stimuli may have an effect only in situations without other competing visual stimuli supporting speed perception. Future research should investigate whether speed perception is indeed a primarily visuospatial control task or whether other sensory information such as auditory factors can have an influence as well.

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Section: Significance Statementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Investigating the influence of visuospatial stimuli on driver’s speed perception: a laboratory study

Köhler,

Klatt,

Koch

et al. 2023

Cogn. Research

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Intelligent Roadside Infrastructure for Connected Mobility

Agrawal

Song

Doycheva

et al. 2023

Communications in Computer and Information Science

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In-vehicle nudging for increased Adaptive Cruise Control use: a field study

Gustavsson,

Ljung Aust

2024

J Multimodal User Interfaces

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Close following to lead vehicles is associated with increased risk of rear-end crashes in road traffic. One way to reduce instances of close following is through increased use of the Advanced Driver Assistance System (ADAS) Adaptive Cruise Control (ACC), which is designed to adjust vehicle speed to maintain a safe time headway. Since the activation of ACC is driver-initiated, there is a need to influence the propensity of drivers to use the function. This research aimed to explore whether in-vehicle nudging interventions could be effective for this purpose. A field trial was conducted to consecutively assess the effects of two nudges on drivers’ utilization of ACC, compared to baseline usage. Exposing the participants (n = 49) to the first ambient design nudge resulted in a 46% increase in ACC usage on average. Following the introduction of the second nudge (a competitive leaderboard nudge), the average increase among participants (n = 48) during the complete treatment period reached 61%. The changes in ACC utilization varied between individual drivers, highlighting the need to monitor behavioral outcomes of nudges and adapt them when needed. In conclusion, this research shows that utilizing in-vehicle nudging is a promising approach to increase the use of vehicle functions contributing to improved traffic safety.

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Guiding drivers towards safer driving speed: Exploiting visual dominance in speed adaptation

Cited by 9 publications

References 38 publications

Investigating the influence of visuospatial stimuli on driver’s speed perception: a laboratory study

Investigating the influence of visuospatial stimuli on driver’s speed perception: a laboratory study

Intelligent Roadside Infrastructure for Connected Mobility

In-vehicle nudging for increased Adaptive Cruise Control use: a field study

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