An end-of-train device, a system, and a method for monitoring barrier gates are provided. The method includes receiving at least one image associated with a barrier gate from an imaging device mounted on a train. Further, the at least one image is analyzed to determine a current status of the barrier gate. The current status corresponds to a position associated with the barrier gate. Based on the current status of the barrier gate, an action to be performed is identified. Further, one or more instructions for performing the identified action are generated.