News

Update of NFPA 502 Critical Velocity Calculator for 2020

October 31, 2019
The NFPA 502 Standard for Road Tunnels, Bridges, and Other Limited Access Highways has been updated for 2020 and includes a new Annex D Critical Velocity Calculation. We have updated the Tunnel Critical Velocity Calculator that can be downloaded to make this calculation. A comparison of the 2020 calculation with the 2017 version is shown below ... Read More...

Save Settings for Results Visualizations

October 30, 2019
With the most recent release of PyroSim and Pathfinder, the Results tool has a new ability to save the settings and state of the Results Viewer, this newly saved data is known as a Results 'Visualization'. A 'Visualization' is a collection of settings that define which Pathfinder and FDS results are to be loaded and how those results are to be displayed. It also contains information entered by the user, such as views, tours, colorbar settings, time settings, annotations, object visibility, etc. Read More...

PyroSim Geometry from SketchUp

October 9, 2019
Two methods to build a 3D curved ramp model in SketchUp, and then export the geometry for use in PyroSim. Read More...

Pathfinder 2019.2.1002

October 2, 2019
This release adds visual and usability improvements, bug fixes, and a system to save and restore results settings.  Read More...

PyroSim 2019.2.1002

October 2, 2019
This release adds custom keyboard shortcuts, visual and usability improvements, bug fixes, and a system to save and restore results settings.  Read More...

PyroSim Keyboard Shortcuts

September 30, 2019
A long-awaited feature has finally arrived, you can now assign Keyboard Shortcuts to various actions in PyroSim. 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...

Data Visualization through Occupant Colors in Pathfinder 2019.1

June 13, 2019
Pathfinder 2019.1 introduces an additional way to visualize evacuation results through the color of occupants in the model. Occupants can be assigned a dynamic color value based on criteria such as behavior, profile, speed, and more. The video below illustrates many of these options within a single model. 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...

PyroSim 2019.1.0515

May 15, 2019
This release fixes a bug preventing groups from being deleted in the PyroSim Navigation panel.  Read More...