Incident Management Plan for the Tri-County Metropolitan Transportation District of Oregon/Tri-Met [open pdf - 18MB]
"The primary goal of the Plan is to provide a comprehensive approach for managing emergencies and events, including prevention/mitigation, preparedness, response, and recovery. The Plan addresses emergencies due to criminal activity, earthquake, fire, flooding, hazardous materials spills, medical emergency, severe weather. telecommunications or computer system failures, terrorism, transportation accidents, utility outages, volcanic activity, or other emergency situations occurring within the transit system and its related buildings."
Federal Transit Administration Safety & Security Page: http://transit-safety.volpe.dot.gov/security