COMMUTER RAIL: Agencies' Estimates of Operations and Maintenance Costs for Positive Train Control.

The article presents a report by the U.S. Government Accountability Office on the challenges faced by commuter rail agencies in determining and reporting annual Positive Train Control (PTC) Operations and Maintenance (O&M) costs. It mentions that commuter railroads incur costs to implement and operate positive train control (PTC)—a system which can prevent collisions and other types of accidents.