What is the maximum speed defined as Slow Speed?

Slow Speed is defined as a maximum speed of 15 miles per hour. This definition is critical within railway operations as it informs the movement of trains in various situations such as in congested areas, during maintenance work, or when the physical condition of the track or surrounding environment requires caution. Maintaining this speed helps ensure safety by reducing the risk of accidents, allowing for greater control and reaction time in response to obstacles or changes in conditions. The determination of this speed is standardized across many rail operations to ensure consistency and safety, which is why the specification of 15 MPH is important in operational rule contexts.