For a successful completion of a Class I Test, what percentage of the train brakes must be operable?

For a successful completion of a Class I Test, it is essential that 100 percent of the train brakes are operable. This requirement ensures that the entire braking system functions effectively to maintain safety during train operations. A complete and fully functional braking system is critical for controlling the train speed and ensuring the safety of both the crew and the cargo being transported.

The safety standards set by regulatory agencies and railway companies, such as Union Pacific, stipulate that every brake must be operational to guarantee that there are no safety risks involved. Any failure or inoperability in the braking system could lead to severe accidents, making the requirement for 100 percent operational brakes non-negotiable. This high standard is in place to uphold the integrity and reliability of train operations in varying conditions and scenarios.