CANAC’s TRNSIM® application simulates the dynamic forces within a train based on specified train handling methods over a given track configuration. TRNSIM® was developed by industry-leading, rail research engineers and has been field tested and calibrated over many years of use. The program is used to analyze derailment incidents and train handling issues involving a wide variety of power configurations and rail car types while operating in any type of track conditions.

TRNSIM® computes the instantaneous train forces (longitudinal and lateral) on individual rail cars resulting from each and every action taken by the locomotive engineer (throttle/dynamic brake/airbrake) as the train moves down the track. Hence, TRNSIM® is ideal for locomotive engineer training and to establish safe train handling practices for operating over difficult terrain. The main focus of this program is to identify and prevent any train handling action that may result in excessive drawbar or in-train forces to cause coupler failure or otherwise lead to a train derailment.

It is a very practical and robust model that produces very reliable results.