Tutorials

Pathfinder Profile Switching Examples

December 3, 2019
Profile switching has been added to Pathfinder 2019.3. The original request came from a user who wanted to simulate a situation where some building occupants were emergency responders. In an emergency, these occupants would go to a room, change clothes, and then change behavior when they left the room. Pathfinder 2019.3 supports this scenario. This video ... Read More...

Reduce Occupant Diameter to Navigate Narrow Geometry

August 19, 2019
The new "Minimum Diameter" setting for movement through narrow geometry (optional), specifies a diameter to which the occupants can squeeze their bodies to pass through a narrow area, such as narrow doors or corridors. Read More...

Distributed Use of Stairs and Escalators

May 21, 2019
In real-world pedestrian movement scenarios, different percentages of the population will use stairs or escalators. In addition, some portion of the population will walk on an escalator and others will stand. This example model demonstrates a method within Pathfinder to model these percentages and difference in movement characteristics. Read More...

IFC Import to Pathfinder (and PyroSim)

November 14, 2018
The next releases of Pathfinder and PyroSim will include the capability to import Industry Foundation Classes (IFC) files that describe building data. In Pathfinder, this can significantly speed model creation since it includes automatic extraction of  floors, doors, and stairs. This post demonstrates this feature.  Read More...

Manually Coupling FDS and Pathfinder to Respond to Smoke

November 7, 2018
A long-term development goal has been to fully couple the PyroSim/FDS fire results with Pathfinder evacuation. A first step toward this goal is the capability to display both fire and evacuation results in the same results viewer. However, full coupling of the two simulations has not been completed. In the interim, it is possible to run the fire simulation, monitor the reduced visibility due to smoke, and then manually use that information to slow and re-direct occupants in response to the fire. This provides an example.  Read More...

VR in Pathfinder and PyroSim

October 17, 2018
The next releases of Pathfinder and PyroSim will include the capability to display results using the Oculus Rift virtual reality (VR) headset. This post gives a preview of how to use this capability.  Read More...

Ramps in Pathfinder

August 10, 2018
This post demonstrates how to use straight and curved ramps in Pathfinder. Straight ramps are supported using the Create Ramp tool, while curved ramps require CAD import and use of the Extract Floor tool.  Read More...

Monte Carlo Simulations in Pathfinder

June 20, 2018
Pathfinder 2018.3 will include basic monte carlo simulation tools to automate multiple simulations where the initial positions and properties of occupants are randomized. This post demonstrates this capability. Read More...

Group Movement in Pathfinder

March 19, 2018
In Pathfinder 2018.1, occupants can be assigned to groups that move together during the simulation. In this post, we illustrate a few use cases. Read More...

Display Experimental Trajectory Data in Pathfinder Results Viewer

February 16, 2018
This post demonstrates an undocumented feature in Pathfinder for visualizing experimental trajectory data in the Result Viewer. Read More...