What does the train number signify when it starts with 6xxx?

When a train number begins with 6xxx, it indicates that the train originates or terminates at Powelton Avenue Yard. This yard serves as a maintenance and storage facility, primarily for trains running on certain SEPTA routes. It is important for operational purposes as it helps identify where the train is coming from or going to, especially in terms of scheduled service frequency and maintenance routines.

Understanding this signaling is crucial for conductors and engineers, as it helps in planning logistics, scheduling, and ensuring that trains are positioned appropriately for their intended routes. The other options involve different locations or directions that do not align with the specific designation of train numbers starting with 6xxx.