On occasion, when unscheduled disruptions to light rail service in the Downtown & North Side area occur, buses are acquired to replace a portion or all of the light rail service during the interruption until service is restored.
This routing encompasses all stations from First Avenue to Allegheny Station only. For routing breakdowns when a certain number of intermediate stations only are affected, or when the bus substitution must continue to Station Square or the South Hills, other routings will be utilized or adjusted by Pittsburgh Regional Transit staff at the scene.
Buses while in substitution service in the Central Business District (CBD) only are to use the Head Sign reading "Rail Shuttle" to avoid confusion as buses will terminate at First Avenue or Steel Plaza Station dependent upon the type of closure. For bus substitution service beyond Downtown Pittsburgh, buses will carry respective routing designations as applied along the disrupted part of the light rail system.
Start: 01/01/2026 — End: 12/31/2026