What is the term used for rail tracks that have no sides?

The term that describes rail tracks without sides is often referred to as "elevated tracks." Elevated tracks are designed to be raised off the ground, typically supported by pillars or structures, allowing for unobstructed movement underneath. This configuration is common in urban areas where space is limited, as it helps reduce congestion at street level.

The elevated design does not include sides because it operates above existing infrastructure, allowing for a clear path for the trains. This unique structural feature distinguishes elevated tracks from ground-level or underground options.

While ground tracks are laid flat on the surface of the ground, and underground tracks are buried below the earth, neither of these would meet the criteria of having no sides in the context described. Open railways is not a standard term used in railway terminology like elevated tracks.

Understanding these basic definitions of track types is crucial for anyone involved in railway operations, safety protocols, and emergency response situations.