A study to measure spare capacity of driver's attention payable to cognitive subtask

Ayama, Miyoshi; Hasegawa, Hiroshi; Kawaguchi, M.; Ihata, N.; Ikegami, Masanaga; Kasuga, Masao

doi:10.1109/itsc.2002.1041229

Cited by 5 publications

(1 citation statement)

References 9 publications

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“…Glances towards the street ahead or the mirrors were not affected. Nevertheless, the driving environment's complexity and the workload of the driving task itself e.g., [16,17] might influence how much spare capacity drivers have (e.g., the more complex driving environment, the less free visual attentional capacity available). For PAD, the driving demands are partially reduced since the automated system controls longitudinal and lateral position [4].…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Methodological Approach towards Evaluating the Effects of Non-Driving Related Tasks during Partially Automated Driving

et al. 2020

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Partially automated driving (PAD, Society of Automotive Engineers (SAE) level 2) features provide steering and brake/acceleration support, while the driver must constantly supervise the support feature and intervene if needed to maintain safety. PAD could potentially increase comfort, road safety, and traffic efficiency. As during manual driving, users might engage in non-driving related tasks (NDRTs). However, studies systematically examining NDRT execution during PAD are rare and most importantly, no established methodologies to systematically evaluate driver distraction during PAD currently exist. The current project’s goal was to take the initial steps towards developing a test protocol for systematically evaluating NDRT’s effects during PAD. The methodologies used for manual driving were extended to PAD. Two generic take-over situations addressing system limits of a given PAD regarding longitudinal and lateral control were implemented to evaluate drivers’ supervisory and take-over capabilities while engaging in different NDRTs (e.g., manual radio tuning task). The test protocol was evaluated and refined across the three studies (two simulator and one test track). The results indicate that the methodology could sensitively detect differences between the NDRTs’ influences on drivers’ take-over and especially supervisory capabilities. Recommendations were formulated regarding the test protocol’s use in future studies examining the effects of NDRTs during PAD.

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Section: Theoretical Backgroundmentioning

confidence: 99%