What is the maximum speed through turnouts of all switches and tracks other than main tracks, unless prescribed otherwise?

The maximum speed through turnouts of all switches and tracks other than main tracks is established to enhance safety and minimize the risk of derailments. A speed of 10 MPH through these areas allows for controlled maneuvering while maintaining sufficient speed for efficient operations. This limit is particularly important because turnouts can be complex pieces of equipment where trains change tracks, and higher speeds would compromise the stability and safety of the train during these transitions.

Furthermore, this speed aligns with industry standards and practices that prioritize the safety of both personnel and equipment. It ensures that train crews have adequate time to react in case of unexpected circumstances while negotiating switch tracks. The stipulation that it applies to all tracks other than main tracks emphasizes the need for caution in areas where trains may be operating with more variable conditions, such as in yards or sidings.