What is a common speed for train operations in non-restricted areas?

In train operations, a common speed in non-restricted areas is typically 60 MPH. This speed allows for efficient travel while ensuring safety and reliability under typical conditions. Non-restricted areas are generally segments of track where specific speed limits imposed by signals, track conditions, or other operational factors do not apply, which means trains can operate at their maximum permitted speeds.

To further contextualize this, speed limits can vary significantly based on several factors, including the type of service (passenger vs. freight), track class, and curvature of the track. While it's essential to adhere to these limits for safety, 60 MPH represents a common upper limit for many trains in straight, well-maintained sections of track that are devoid of curves or other obstructions. This does not imply that speeds like 45 or 50 MPH are incorrect; they may be appropriate for particular circumstances or specific railways, but 60 MPH is generally recognized as a typical speed for non-restricted areas. Choosing a speed higher than this, such as 70 MPH, might occasionally be appropriate for certain trains or tracks specifically designed for higher speeds, but it is not as universally applicable as 60 MPH.