Since the Directive of the European Parliament, risk assessment has become an integral part of tunnel design to achieve the safety goals. It calculates an FN-curve related to the occurrence of a fire, in new and in existing tunnels that are due for renovation, by adopting 1D egress and smoke propagation models to simulate fire events in galleries and to evaluate the interferences among people and combustion products. During the Co-VID 19 pandemic, a new parameter has been developed to give a good understanding of potential mass gathering.ĪRTU (Analisi di Rischio Tunnel / Tunnel Risk Analysis) is an in-house tool to implement a methodology for the assessment of risk in tunnels. Pathfinder can smoothly animate tens of thousands of people in real time using a standard graphics card and provides also easy tools to create videos to record the results. It provides human models that represent different emergency responders to realistically portray the population group of interest.

Pathfinder also supports two simulation modes: a Steering mode, where agents proceed to their goal avoiding any obstacle and SFPE mode, where agents use predefined behaviors, with density-dependent walking speeds and flow limits to doors. Pathfinder’s floor extraction tool allows to easily use the imported geometry to define the occupant walking space for the evacuation model and allows to import a blueprint in GIF, JPG, or PNG format as a background to help you draw your model directly over the image. It provides support for the import of AutoCAD format DXF and DWG files. An emergency evacuation simulator with an integrated user interface and animated 3D results to evaluate evacuation models more quickly and produce very realistic graphics.

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