PathTrace screenshot of most vulnerable path to target.

Pathway analysis and exploration


Continuous vulnerability assessment and system evaluation are essential in assuring that your facility’s physical protection system is functioning as designed and as required. But a checklist of guards and security technologies will not provide insight into system effectiveness, advise on potential upgrades, or consider adversary capabilities. To address these needs, Sandia National Laboratories developed PathTrace, a quantitative analysis modeling and simulation tool that uses established algorithms to identify system vulnerabilities.

What PathTrace Does

  • Identifies the most vulnerable, quickest, and stealthiest paths using established algorithms to determine system vulnerabilities.
  • Computes Probability of Interruption (PI), Probability of Detection (PD), Critical Detection Point (CDP), and Adversary Sequence Diagram (ASD) for each pathway.
  • Creates actionable data that allows you to model and test security upgrades before costly installation and provides data-driven justification in support of changes.
  • Allows you to test an infinite number of mitigation strategies for variables in detection, delay, and response.

How PathTrace Works

PathTrace Model

Build your Model

  • Use an aerial image of your facility taken from a diagram, blueprint, floor plan, or even a snip from Google Maps.
  • Fill in delay barriers such as walls, doors, fences, gates, and windows that would stop the progress of the attacker.
  • Define areas of detection, such as sensor volumes, patrolled zones, and camera coverage that would result in the detection of the attacker.

Define Response and Adversary Capabilities

  • Use facility testing data to specify the response team’s reaction time to a detection event.
  • Specify what types of tools the adversary might carry and consider multiple varieties of tool kits.
PathTrace Screen shot

Analyze your Facility

  • Generate and evaluate the quickest, stealthiest, and most vulnerable pathway to a target or target set.
  • Consider multiple “what if” scenarios.
  • Verify the effectiveness of an existing design.
  • Study ideas for facility or technology upgrades, test their effectiveness, and justify costs before they are implemented.

PathTrace and Scribe3D: Better Together

Use PathTrace to analyze adversary pathways and how modifications in detection, delay, or response affect security at your facility, then export a simplified model into Scribe3D and create a tabletop exercise of the adversary attack pathway and your guard responses. Using both tools enables both quantitative and qualitative methods of system evaluation.