How long does it generally take to clear a single track?

Clearing a single track typically refers to the time required for trains or vehicles to pass through a designated area without obstruction. It is essential for ensuring safe operations in rail environments. The correct choice indicates that this process generally takes 14 seconds. This timing is based on established protocols and practices in railroad operations that factor in train speed, distance, and reaction time.

Understanding this timing is crucial for maintaining safe intervals between trains and ensuring that personnel can manage rail traffic effectively. Misjudging this time could lead to accidents or delays. The other options, while close, do not represent the standard timeframe as accurately as 14 seconds, reflecting the importance of precise coordination in rail transport.