What information does a track indicator provide?

A track indicator primarily provides information on which track a train is lined up for, indicating the route that has been set for the train to follow. This is essential for safe operations, ensuring that the train is on the correct path as per the signaling system in place. Knowing what track a train is lined up for helps engineers maintain situational awareness and prepare for any necessary actions, such as adjusting speed or preparing for upcoming junctions or switches.

The other options, while related to train operations, do not accurately represent the primary function of a track indicator. The speed limit for the next section would typically be communicated through different signals, and the condition of the track ahead is monitored by other means, often through inspection or maintenance protocols. Emergency contact numbers are not relevant to the function of a track indicator, as they pertain to communication rather than operational guidance.