What does it mean if the brake application light remains lit while in coast position?

If the brake application light remains lit while in the coast position, it indicates that all air brakes are applied with pressure. In the context of train operation, the 'coast' position typically means that the train is in a state where it should be coasting without any active brake application. However, if the brake application light is illuminated, it shows that despite being in the coast position, the system is still applying pressure to the brakes. This could occur for several reasons, including potentially needing to manage speed or respond to specific safety protocols. Understanding the operational indicators like the brake application light is crucial for train operators, as it directly relates to the effective handling and safety of the train during its journey.