3D assessment of rockfall hazard and risk mitigation

Version 7.0.0

RocPro3D

RocPro3D

May 15th, 2026

The new RocPro3D version (7.0.0) is available for download

This new version is a major release bringing striking improvements and new functionalities. Most important ones are:

Optimisations

  • Optimisation of several result files, leading to a 50% reduction in storage size
  • Decreased RAM usage with the reduced storage strategy

User interface

  • Side walls in the 3D view are now hidden by default and can be displayed optionally with a transparency effect
  • A DTM projection (horizontal plane) is now always displayed beneath the 3D view model to allow better understanding of the 3D model's orientation
  • A more natural mouse interaction mode makes it easier to manipulate the 3D scene
  • For maps with isolines, these are now displayed in both the 2D and 3D views and can be exported to a DXF file

Imperial geometric length units

  • All imported geometric data (DTM, source, protections, etc.) can be converted from feet to metres if needed

DTM edition

  • A new tool allows peaks and/or pits to be removed from the DTM
  • Improved decimation algorithms allow larger decimation ratios to be obtained, while still controlling the resulting geometric error

New interactive tool

  • A new ruler tool allows to measure distances and angles on the DTM

Field observations

  • Possibility to import field observed blocks in the model

Sources of blocks

  • Labels have been added to each source automatically for an easier QA/QC
  • Sources can now be imported from a shapefile with all properties integrated into the dbf file
  • Each source is now assigned a probability of start, P(start), for its blocks. The input data follows the recommendations of JTC-1 (Joint International Societies Technical Committee on Landslides and Engineered Slopes)

Protections settings (all types)

  • Labels have been added to each protection automatically for an easier QA/QC
  • Protections can now be imported from a shapefile, and all protection properties can be integrated into the dbf file

Protections settings (net type)

  • For cases where the block energy is higher than the net capacity, the block carries on its path below the protection. It is now possible to fine-tune the net behaviour via an Overcapacity Efficiency Coefficient (OEC)
  • This allows considering any behaviour between a fully optimistic situation (where the block energy is reduced by the net capacity) and a fully pessimistic (or safe) situation (where the block energy is not modified)

Analysis of trajectories

  • Simulated trajectories can now be plotted as a chart of reach angles (RA) versus normalised linear area (NLA). This allows direct comparison with field data from the Rock_The_Alps database

Analysis at protection level

Two new simulation results are now available:

  • The impact angle of blocks arriving in the protection with respect to the horizontal plane
  • The position of the blocks within the protection, i.e. their curvilinear coordinates. This makes it possible to identify the areas where the protection will experience the greatest loading in terms of the number of blocks

Analysis at large scale via maps

  • A generalised exact formula is now used to compute the propagation probability map, P(propag)
  • A new map of the probability of reach, P(reach), is also available, considering the probability of block departure, P(start), for each source
  • Both P(propag) and P(reach) can be expressed in normalised units [/m²] or [/cell area], which facilitates comparison of scenarios with different grid sizes used for statistical analysis
  • New maps ELA (energy line minimum angle) and TLA (travel line minimum angle) are now available. These help to compare simulation results with energy line concepts that can be obtained from a simple topographic analysis of the DTM

New optimised envelope type

  • In addition to the “full” and “reduced” envelope types, a new “optimised” envelope type is available, which allows approximate quantiles of envelopes to be obtained at a constant cost in terms of RAM and size of result files

Comparison between simulations and observations

  • A new functionality computes the minimum distance between each observed block and all simulated stopping points and provides several significant values (mean, quantiles, etc.)
  • This metrics can be used to compare several simulations against field data and decide which simulation best fits the observations. This enables sensitivity analyses or soil parameter fitting between observations and several performed simulation sets