What does a track indicator specifically help engineers determine?

A track indicator is a crucial device used by engineers to assess the conditions and characteristics of the track ahead. It provides real-time information about the track's configuration, such as bends, slopes, and potential hazards. This information is vital for making informed decisions regarding train operations.

By understanding the track configuration, engineers can better ensure safe and efficient train navigation, as each track segment can present unique challenges that affect speed, routing, and overall safety. Thus, the ability of a track indicator to relay details about what lies ahead directly supports the operational criticality of maintaining safety standards and optimizing train journeys.