A new rating system for hydrogeological risk management along railway infrastructures in Prealpine zone (northern Italy)

Abstract Railway infrastructures in mountain areas often develop along hillslopes affected by geomorphological and hydrogeological processes which might lead hazardous events. Therefore, specific tools for risk analysis management are required. This paper develops a new rating system (Railway Hydrogeological Management System, RHMS), based on heuristic method considers the susceptibility to different types of slope instabilities, as well peculiar features affecting railway vulnerability. The proposed introduces an iterative approach assessment, definition acceptability thresholds residual risk. application this test area pointed out its feasibility, operational capability identify critical sections infrastructure, protection or mitigation measures needed order reduce