Drivers for Metro’s shuttle service for disabled riders protested Monday over what they call overly long work shifts, saying the hours endanger their lives and customers. Amalgamated Transit Union Local 1764, which represents about 800 drivers for MetroAccess, demonstrated outside MV Transportation’s office in Hyattsville. Wayne Baker, president of Local 1764, said drivers are being required to drive 13-hour shifts, causing fatigue. “It is a safety hazard,” Baker said of the long hours of driving.