R1 – Data collection
There are two types of vulnerability that are:
- physical vulnerability that relates to infrastructure to the Rocky risk resistance. This resistance is dependent on the intrinsic properties of this infrastructure subject to a fall of stones, blocks or rock masses. This subsequently determines the level of the consequences and potential impacts. A first action is to expand infrastructure strength classes or their mechanical susceptibility to the fall of Rocky elements;
- the social, economic and environmental vulnerability that integrates the infrastructure into a territory. The principle is to analyse the impacts of disturbances generated on infrastructure by the Rocky risk. Follows the concept of resilience or ability of the infrastructure to recover its performance. Note, however, that transport infrastructure fit into a network and this is the functional performance of the network that must be recovered. Action is to carry on taking account of the impacts for the operation of infrastructure and a given territory.
Objectives
- carry out a first phase of data collection from owners
- share the feedback and data available on the rockfall that occurred and their consequences to study on the basis of existing case how behave in infrastructure when landslide (resistance) and then in a second step see the ability of the infrastructure to return to normal operation (resilience)
Objectives
- carry out a first phase of data collection from owners
- establish a database on the cost and maintenance of infrastructure at Rocky risk and the works of parades
- make a feedback on the full costs of different types of parades structures depending on the context (setting in place, monitoring, maintenance, maintenance, life, residual risk level)
Expected results
- improve knowledge on analysis with full costs of infrastructure exposed to Rocky risk and works of parades (installation, maintenance, maintenance, repair) and the life cycles of the works of parades
- provide source data essential to the project to help the construction of the simulation of scenarios of risk management tool, guides and deliverables for a reasoned argument in the choice;
- Guide to vulnerability, risk zoning and crisis management;
- Guide collection of technical solutions;
- Guide rock risk management.
R2 – Experimentation
Objective
Watch the evolution of the structures in their natural environment through a naturalistic approach
Expected results
- a better understanding of the phenomenon of ageing of parades and a better assessment of the moment where they provide more their role (obsolescence)
- power of data on their life cycle (characterization of aging and degradation)
- realistic lifetimes of the parades to the environment they are facing
- additional elements in the definition of the threshold of acceptability of the risk
R3 – modeling
R3.1.1 – Modeling the networks on a test (resiliency) area, risk on linear issue
- Enable the evaluation of indirect vulnerability associated with rocky risk (loss of function of Association related to the cuts of roads, railways) taking into account the remote and indirect, effects such as socio-economic nature
- Allow the evaluation of the criticality and the importance of sections of (first transit) networks in connection with protection strategies
- To analyze the quantitative assessment of the resilience of networks
R3.1.2 modelling of the risk on localized issue (regulatory zoning)
The objective of this action is to improve the quantification of Rocky risk regulatory zoning. Thus, it deals only with the risk for residential buildings and humans indoors. The heart of this action is the coupling of hazard and vulnerability/costs simplified but robust models. This action will thus rely on the developments under the alea axis, and, to a lesser extent, the axis parade.
R3.1.3 Simulation of a crisis with iCrisis © software
This is to prepare and organize a crisis following a rockfall simulation in which several players would be mobilized including authorities (prefecture, common, but also expert). Such simulation primarily requires the preparation of an accidental scenario, the practice of such simulation organization and configuration of the software iCrisis.
Objective
This action is designed to simulate different scenarios of risk management according to the issues specific to each maître d’ouvrage. There are the most glaring differences between linear infrastructure manager and community of duration of exposure of the element to protect: persons or goods in circulation types (road and rail) and stealthily exposed on the one hand, persons residing in housing exposed permanently on the other hand.
R4 Guides and recommendations
- R4.1 – Guide ‘ vulnerability to the Rocky hazard zoning of risk and crisis management “
- R4.2 – Guide ‘Reports of technical solutions’
- A4.3 – Guide ‘Rocky risk management’
- R4.4 – Benchmark good practices for offices
