Under which condition may a track warrant not be issued to protect men or equipment?

A track warrant is a form of authority used in railroad operations to protect personnel and equipment working on or near the tracks. The reason why a track warrant may not be issued when all trains are not notified is primarily related to safety and operational integrity. If not all trains that could potentially impact the work area are aware of the work being done, there is an increased risk of accidents. For safety procedures to be effective, it is essential that all relevant parties, including train crews, are informed about any work activity in the area. This ensures that trains operating in proximity to workers or equipment are operating with full situational awareness.

In contrast, conditions such as trains moving in different directions or overlapping limits may still allow for the issuance of a track warrant as long as safe practices are followed. Similarly, while an unsafe track condition would warrant caution, it does not inherently prevent the issuance of a warrant if proper safety measures are implemented. However, the fundamental principle of train communication and notification remains paramount in ensuring safety when a track warrant is being considered.