title: Contrasting models of driver behaviour in emergencies using retrospective verbalisations and network analysis.
abstract: Automated assistance in driving emergencies aims to improve the safety of our roads by avoiding or mitigating the effects of accidents. However, the behavioural implications of such systems remain unknown. This paper introduces the driver decision-making in emergencies (DDMiEs) framework to investigate how the level and type of automation may affect driver decision-making and subsequent responses to critical braking events using network analysis to interrogate retrospective verbalisations. Four DDMiE models were constructed to represent different levels of automation within the driving task and its effects on driver decision-making. Findings suggest that whilst automation does not alter the decision-making pathway (e.g. the processes between hazard detection and response remain similar), it does appear to significantly weaken the links between information-processing nodes. This reflects an unintended yet emergent property within the task network that could mean that we may not be improving safety in the way we expect.
  This paper contrasts models of driver decision-making in emergencies at varying levels of automation using the Southampton University Driving Simulator. Network analysis of retrospective verbalisations indicates that increasing the level of automation in driving emergencies weakens the link between information-processing nodes essential for effective decision-making.
authors: a Civil, Maritime, Environmental Engineering and Science Unit, Faculty of Engineering and the Environment, University of Southampton , Southampton , UK.
authors: Victoria A
authors: VA
authors: Banks
authors: Neville A
authors: NA
authors: Stanton
mesh_terms: D000328:Adult; D001331:Automation; D001334:Automobile Driving / Q000523:psychology*; D003657:Decision Making; D004630:Emergencies / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008962:Models, Theoretical; D011897:Random Allocation; D013597:Systems Analysis; D013647:Task Performance and Analysis; D055815:Young Adult
keywords: automation; driver decision-making; network analysis, retrospective verbalisation