What is the maximum allowable speed for a lead locomotive after a Daily Inspection if the speed recorder has failed?

When a speed recorder has failed, it's crucial to adhere to specific safety protocols to ensure safe train operation. The maximum allowable speed of 20 MPH for a lead locomotive after a Daily Inspection is designed to minimize risks associated with the inability to accurately monitor speed. This speed limit allows the train to operate safely while reducing the potential for accidents or equipment failures due to excessive speed.

Setting this limit reflects a balance between operational efficiency and safety. It provides a conservative approach when the speed functionality cannot be confidently relied upon due to the recorder's failure. Therefore, maintaining a slower speed ensures that the crew can respond appropriately to any unforeseen circumstances without exceeding safe operational limits.