What action should be taken when the train is approaching a work zone?

When a train is approaching a work zone, preparing to apply service braking is the appropriate action to ensure safety. This action allows the train operator to reduce speed gradually, which is crucial in a work zone where personnel and equipment may be present. It is essential to maintain control of the train and ensure that there is ample stopping distance, given that work zones can present sudden and unexpected hazards.

Reducing speed also affords the operator the opportunity to assess the situation more accurately and respond appropriately to any signals or indicators set in place to guide safe navigation through the work area. This proactive approach ensures the safety of both the train crew and any workers present in the work zone, as well as maintaining compliance with safety regulations.

In contrast to this correct action, increasing speed to clear the area quickly poses significant risks, as it can lead to accidents if unexpected obstacles arise. Switching to manual operations might not be necessary or advisable without specific protocols in place. Ignoring indicators is particularly dangerous as it disregards critical communication regarding the work zone, compromising safety for everyone involved. Hence, preparing to apply service braking is the comprehensive safety measure to take in this scenario.