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DTSTART;TZID=America/New_York:20220504T150000
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UID:1743-1651676400-1651677300@www.germanhci.de
SUMMARY:Effects of Pedestrian Behavior\, Time Pressure\, and Repeated Exposure on Crossing Decisions in Front of Automated Vehicles Equipped with External Communication
DESCRIPTION:Automated vehicles are expected to substitute driver-pedestrian communication via LED strips or displays. This communication is expected to improve trust and the crossing process in general. However\, numerous factors such as other pedestrians’ behavior\, perceived time pressure\, or previous experience influence crossing decisions. Therefore\, we report the results of a triply subdivided Virtual Reality study (N=18) evaluating these. Results show that external communication was perceived as hedonically pleasing\, increased perceived safety and trust\, and also that pedestrians’ behavior affected participants’ behavior. A timer did not alter crossing behavior\, however\, repeated exposure increased trust and reduced crossing times\, showing a habituation effect.\nOur work helps better to integrate research on external communication in ecologically valid settings.
URL:https://www.germanhci.de/event/effects-of-pedestrian-behavior-time-pressure-and-repeated-exposure-on-crossing-decisions-in-front-of-automated-vehicles-equipped-with-external-communication/
LOCATION:Room: 386
CATEGORIES:Out and About
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DTSTART;TZID=America/New_York:20220504T144500
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UID:1771-1651675500-1651676400@www.germanhci.de
SUMMARY:BikeAR: Understanding Cyclists’ Crossing Decision-Making at Uncontrolled Intersections using Augmented Reality
DESCRIPTION:Cycling has become increasingly popular as a means of transportation. However\, cyclists remain a highly vulnerable group of road users. According to accident reports\, one of the most dangerous situations for cyclists are uncontrolled intersections\, where cars approach from both directions. To address this issue and assist cyclists in crossing decision-making at uncontrolled intersections\, we designed two visualizations that: (1) highlight occluded cars through an X-ray vision and (2) depict the remaining time the intersection is safe to cross via a Countdown. To investigate the efficiency of these visualizations\, we proposed an Augmented Reality simulation as a novel evaluation method\, in which the above visualizations are represented as AR\, and conducted a controlled experiment with 24 participants indoors. We found that the X-ray ensures a fast selection of shorter gaps between cars\, while the Countdown facilitates a feeling of safety and provides a better intersection overview.
URL:https://www.germanhci.de/event/bikear-understanding-cyclists-crossing-decision-making-at-uncontrolled-intersections-using-augmented-reality/
LOCATION:Room: 386
CATEGORIES:Out and About
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