How will track warrant limits be designated?

Track warrant limits are designated by specifying exact points such as switches or mile posts. This method provides a precise framework within which work can be safely conducted, ensuring that all parties understand the exact boundaries of authority and protection on the track.

By establishing clear points, it minimizes the risk of misunderstanding and enhances safety by making it unequivocal where a work crew can operate and where they should not proceed. This specification is crucial in the context of maintenance of way operations since it directly relates to the coordination of train movements and work activities, preventing potential conflicts or accidents on the rail network.

While other options might suggest broader or more flexible methods of designation, they lack the specificity required for maintaining safe operations in a rail environment. Thus, the use of exact points reinforces clarity and safety in track maintenance protocols.