Articles | Volume 16, issue 4
https://doi.org/10.5194/nhess-16-995-2016
https://doi.org/10.5194/nhess-16-995-2016
Brief communication
 | 
19 Apr 2016
Brief communication |  | 19 Apr 2016

Brief communication: On direct impact probability of landslides on vehicles

Pierrick Nicolet, Michel Jaboyedoff, Catherine Cloutier, Giovanni B. Crosta, and Sébastien Lévy

Abstract. When calculating the risk of railway or road users of being killed by a natural hazard, one has to calculate a temporal spatial probability, i.e. the probability of a vehicle being in the path of the falling mass when the mass falls, or the expected number of affected vehicles in case such of an event. To calculate this, different methods are used in the literature, and, most of the time, they consider only the dimensions of the falling mass or the dimensions of the vehicles. Some authors do however consider both dimensions at the same time, and the use of their approach is recommended. Finally, a method considering an impact on the front of the vehicle is discussed.

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When calculating the risk of railway or road users being killed by a natural hazard, one has to calculate a temporal spatial probability, i.e. the probability of a vehicle being in the path of the falling mass when the mass falls, or the expected number of hit vehicles in the case of an event. This paper discusses different methods used to calculate this probability, in particular regarding the consideration of the dimensions of the falling mass and of the vehicles.
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