Tracking decision-making of backcountry users using GPS tracks and participant surveys

Snow avalanches are a significant natural hazard representing the primary risk of death to backcountry travelers in many alpine countries. Careful use terrain through effective decision making can mitigate dangerous snowpack conditions, but requires relevant knowledge and experience. We present results from large-scale crowd sourced data collection method users. Using GPS tracking via smartphone application, coupled with online surveys, we investigate intersection geographical complexity, experience, demographics behavioral biases on decision-making while navigating hazardous winter terrain. 770 tracks, almost 1.3 million points, as geographic expression group's resulting decisions, them quantify understand their process. Our analysis focuses change quantified using Avalanche Terrain Exposure Scale (ATES), time spent avalanche terrain, function other group factors. show that self-identified experts rate themselves significantly more skilled also had higher levels education. Experts an increased exposure overall, severe represented by median class 3 ATES