Sometimes it seems like lightning strikes and we see a significant jump in the capabilities of technology. Such is the case with PS Technology’s Precision Train Builder™ (PTB), a suite of abilities that enables railroads to enhance safety using physically accurate simulation. This ability is leading to improvements in both accident analysis and train consist design. But, like most significant technology shifts, it’s usually about many separate things being in the right place at the right time. PS Technology has taken the embedded physics simulation within their locomotive simulator products and connected the dots into a broader picture of railroad safety. Here is where the nexus of technology has resulted in new abilities. The combination of railroad GIS track data, actual locomotive event recorder data, and robust computational analysis have come together to provide new insights about train behavior and safe operations. PST President Seenu Chundru discuss PTB’s capabilities with Railway Age Editor-in-Chief William C. Vantuono.