What is the definition of Medium Speed?

Medium speed is defined as a speed not exceeding 30 miles per hour (MPH). This definition is crucial in railway operations as it pertains to the speed at which a train can safely travel under certain conditions. It is important for maintaining a balance between operational efficiency and safety.

Understanding these speed classifications helps in planning and executing train movements, ensuring that trains operate within designated parameters for various circumstances, such as track conditions or proximity to other trains. The specific thresholds delineate different operational categories, allowing for more precise control of train operations and enhancing overall safety on the rail network.

The other choices specify lower maximum speeds that fall outside the accepted definition of medium speed, which is set at 30 MPH. Knowing the correct classification not only supports compliance with operational guidelines but also aids in effective communication and coordination within the rail industry.