Integrated within the platform is an Alerter or Train Monitoring System (TMS). This device ensures operator vigilance at all times. The TMS examines the engineer's control handling actions and will automatically bring the train to a stop should the engineer become incapacitated or unable to perform normal duties. The TMS system requires a train handling control action to reset an internal timer that is speed dependent. The reset signal can be any one of a number of Event Recorder input sources. When the timer period expires a visual and audible warning is given. If the operator fails to acknowledge the warning, a Penalty Brake application results.