Masking Action Relevant Stimuli in dynamic environments – The MARS method

The authors present the novel MARS (Masking Action Relevant Stimuli) method for measuring drivers’ information demand for an action relevant stimulus in the driving scene. In a driving simulator setting, the traffic light as dynamic action relevant stimulus was masked. Drivers pressed a button to unmask the traffic light for a fixed period of time as often as they wanted. The authors compared the number of button presses with the number of fixations on the traffic light in a separate block using eye tracking. For the driving task, they varied the road environment by presenting different traffic light states, by adding a lead vehicle or no lead vehicle and by manipulating the visibility of the driving environment by fog or no fog. Results showed that these experimental variations affected the number of button presses as dependent measure of the MARS method. Although the number of fixations was affected qualitatively similar, changes were more pronounced in the number of fixations compared to the number of button presses. They argue that the number of button presses is an indicator for action relevance of the stimulus, complementing or even substituting the recording and analyses of gaze behaviour for specific research questions. In addition, using the MARS method did not change dynamic driving behaviour and driving with the MARS method was neither disturbing, nor difficult to learn. Future research is required to show the generalisability of the method to other stimuli in the driving scene.

• Record URL:
  • https://doi.org/10.1016/j.trf.2014.10.002
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S136984781400151X
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/13698478
• Supplemental Notes:
  • Abstract reprinted with permission of Elsevier.
• Authors:
  • Rittger, Lena
  • Kiesel, Andrea
  • Schmidt, Gerald
  • Maag, Christian
• Publication Date: 2014-11

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: pp 150-173
• Serial:
  • Transportation Research Part F: Traffic Psychology and Behaviour
  • Volume: 27, Part A
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 1369-8478
  • Serial URL: http://www.sciencedirect.com/science/journal/13698478

Subject/Index Terms

• TRT Terms: Behavior; Driver performance; Driving; Eye fixations; Human information processing; Measuring methods; Traffic signals; Visual perception
• Subject Areas: Highways; Safety and Human Factors; I83: Accidents and the Human Factor;

Filing Info

• Accession Number: 01548925
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 29 2014 11:02AM