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Analysis of rockfall risk on mountainside roads: evaluation of the effect of protection devices |
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| Authors: | Claudia Mignelli Daniele Peila Stefano Lo Russo Sara Maria Ratto Massimo Broccolato |
| Institution: | 1. Department of Environment, Land and Infrastructure Engineering (DIATI), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy 2. Functional Centre, Department of Ground Protection and Water Resources, Regional Ministry for Public Works, Ground Protection and Public Housing, Aosta Valley Regional Functional Centre, Aosta, Italy 3. Department of Local Affair, Prefect Office and Civil Protection, Aosta Valley Region, Aosta, Italy |
| Abstract: | Many kilometres of roads are close to rock slopes that are prone to rockfalls. The fulfilment of safety requirements in such situations is a multidimensional design process involving public and private technicians in the assessment and management of the problem. In this paper, a rockfall risk management approach has been applied to the road infrastructure network of the Regione Autonoma Valle D’Aosta, in order to calculate the level of risk and of its reduction using rockfall protection devices. In order to better understand the methodology, a comparative analysis of road accidents in Aosta Valley has been discussed. The road risk assessment was developed taking into account the absence of rockfall protection devices, and when they are present, different levels of efficacy have been considered. |
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