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- W2470544615 abstract "Active safety systems are constantly being enhanced, featuring more and more environmentalfactors and advanced algorithms. The system needs to be able to evaluatemany different driving situations, and take appropriate action, at a safety criticalmoment. In this study, focus has been on quantifying factors’ influence on drivercomfort boundaries when interacting with pedestrians at intersections.Seven factors, on two levels, were included in the study; Car speed, Pedestrian speed,Pedestrian size, Crossing angle, Crossing presence, Crossing entry and Lane width.The experiment was designed with a fractional factorial layout with the seven factorscombined into 32 tasks. Additional 4 tasks were created, 3 to compare thestudy against two studies previously conducted, and another to analyze the learning/adaptation effect.Participants were divided into two groups; Group 1, frequent drivers and Group2, occasional drivers. Statistical analysis based on Linear mixed-effects models wascarried out with a significance level of 0.01 for both group of drivers separately, andby combining the two groups. Factors Car speed and Crossing entry have a significantinfluence on Time To Collision (TTC) at brake onset for all group of drivers.The factors decreased TTC when changed from low to high level. Factors Pedestriansize and Lane width also had a significant influence on TTC at brake onset forall group of drivers. The factors increased TTC when changed from low to high level.The study was conducted with a low-fidelity simulator available at SAFER. Limitationsof the simulator included participants’ lack of input from auditory and sensorysources and narrow field of view. Also, the expectancy of the pedestrian might havechanged the comfort boundaries as there was only one pedestrian crossing the roadin every scenario.However, even though the simulator was developed with open source software, stillnearly 90% of the participants stated they experienced the environment to be naturalor sort of natural and more than 95% said they behaved, or sort of behaved, asnormally as they would have in a real traffic situation." @default.
- W2470544615 created "2016-07-22" @default.
- W2470544615 creator A5026845095 @default.
- W2470544615 creator A5043492020 @default.
- W2470544615 date "2016-01-01" @default.
- W2470544615 modified "2023-09-24" @default.
- W2470544615 title "Driver Interaction with Pedestrians at Intersections - Quantifying the influence of environmental factors on driver comfort boundaries" @default.
- W2470544615 hasPublicationYear "2016" @default.
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