The primary objective of the project was the evaluation of the braking enforcement methodology used by the railroads that have implemented an E-ATC PTC system. The methodology developed under this project can be used by the industry to verify that the braking enforcement algorithms meet established safety and operational efficiency objectives. The methodology makes use of Monte Carlo simulation techniques to statistically evaluate the performance characteristics of the enforcement algorithm coupled with small samples of field testing that is used to validate the results achieved from the simulation modeling process.