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Träfflista för sökning "WFRF:(Ljung Aust Mikael 1973) srt2:(2020)"

Sökning: WFRF:(Ljung Aust Mikael 1973) > (2020)

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1.
  • Ljung Aust, Mikael, 1973, et al. (författare)
  • Final measures (Deliverable 5.5)
  • 2020
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • The main objective of WP5 has been to run a set of field trials with naïve users (i.e. not experts involved in the development of the measures) for all nudging and coaching measures developed in WP2-4. Then, given the outcome of the field trials, the task has been to analyse which impacts these measures may have on road safety along with the cost of implementing them in vehicle fleets and/or infrastructure. All these activities have taken place in Tasks 5.4 (Data collection) and 5.6 (Data analysis).
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2.
  • Ljung Aust, Mikael, 1973, et al. (författare)
  • Results of field trials (Deliverable 5.4)
  • 2020
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • The main objective of WP5 is to run a set of field trials with naïve users (i.e. not experts involved in the development of the measures) for all nudging and coaching measures developed in WP2-4. Field trials with naïve users are necessary in order to validate the estimated effectiveness of each measure. The field trials were set up in as realistic settings as possible, given the possibilities to implement/distribute each measure. This deliverable gives a short description of the field trial setup for each measure, and then reports the effects of the nudge on road user behaviour.
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3.
  • Nilsson, Emma, 1982, et al. (författare)
  • On-to-off-path gaze shift cancellations lead to gaze concentration in cognitively loaded car drivers: A simulator study exploring gaze patterns in relation to a cognitive task and the traffic environment
  • 2020
  • Ingår i: Transportation Research Part F: Traffic Psychology and Behaviour. - : Elsevier BV. - 1369-8478. ; 75, s. 1-15
  • Tidskriftsartikel (refereegranskat)abstract
    • Appropriate visual behaviour is necessary for safe driving. Many previous studies have found that when performing non-visual cognitive tasks, drivers typically display an increased amount of on-path glances, along with a deteriorated visual scanning pattern towards potential hazards at locations outside their future travel path (off-path locations). This is often referred to as a gaze concentration effect. However, what has not been explored is more precisely how and when gaze concentration arises in relation to the cognitive task, and to what extent the timing of glances towards traffic-situation relevant off-path locations is affected. To investigate these specific topics, a driving simulator study was carried out. Car drivers’ visual behaviour during execution of a cognitive task (n-back) was studied during two traffic scenarios; one when driving through an intersection and one when passing a hidden exit. Aside from the expected gaze concentration effect, several novel findings that may explain this effect were observed. It was found that gaze shifts from an on-path to an off-path location were inhibited during increased cognitive load. However, gaze shifts in the other direction, that is, from an off-path to an on-path location, remained unaffected. This resulted in on-path glances increasing in duration, while off-path glances decreased in number. Furthermore, the inhibited off-path glances were typically not compensated for later. That is, off-path glances were cancelled, not delayed. This was the case both in relation to the cognitive task (near-term) and the traffic environment (far-term). There was thus a general reduction in the number of glances towards situationally relevant off-path locations, but the timing of the remaining glances was unaffected. These findings provide a deeper understanding of the mechanism behind gaze concentration and can contribute to both understanding and prediction of safety relevant effects of cognitive load in car drivers.
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