In this paper, the structure and our results of the 3-year European research project called PARAmount ("imProved Accessibility: Reliability and security ofAlpine transport infrastructure related to mountainous hazards in a changingclimate"; 2009-2012) are presented. The PARAmount project covered selected natural hazards (avalanches, rock falls, and debris flows) and their impact on traffic routes. For debris flows, the field activities in Slovenia were conducted in 2 testbed regions: a) on the densely populated Koroška Bela torrential fan in the Jesenice Municipality (debris flows, historical debris-flow event in 1789), where debris flows triggered in the active landslide source in the hinterland of the fan could potentially endanger the regional road R2-452 between Žirovnica and Jesenice (> 6000 vehicles/day) and the railway connection between Ljubljana and Jesenice (68 trains/day in 2008),and b) in the Bohinjska Soteska gorge along the Sava Bohinjka River (debris flows, road and railway interruptions during heavy rains in 2007) where debris flows during thunderstorms occasionally interrupt the railway track from Jesenice to Nova Gorica (44 trains/day) and the parallel main stateroad R1-209 between Bled to Bohinjska Bistrica (~ 4000 vehicles/day).
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