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The Washington Metropolitan Area Transit Authority (WMATA) officially restored Automatic Train Operation (ATO) across its entire Metrorail system, marking the first full return to the automated mode since 2009.
The rollout expands ATO from the Red Line — where it has operated successfully since December 2024 — to the Blue, Orange, and Silver Lines, following a successful phase-in on the Yellow and Green Lines in May.
WMATA decided to expand ATO after completing rigorous internal training and testing and receiving concurrence from the Washington Metrorail Safety Commission. Since the initial implementation on the Red Line, Metro reports no safety issues or red signal violations, reinforcing the system's reliability.
“This is a major milestone for Metro, and it has been a long time coming,” said WMATA GM/CEO Randy Clarke. “This is a win for customers and staff who will experience safer, more reliable rides. Meanwhile, Metro is saving money as ATO is more cost-efficient.”
The full return to ATO also allows WMATA to restore original system speeds of up to 75 mph.
Beginning on June 15, several outer portions of the Blue, Orange, and Silver lines will now see speed increases from 55 mph to 65 mph or 75 mph.
Beginning June 22, WMATA will reduce end-to-end travel times by approximately three minutes on each line. The Yellow and Green Lines will also benefit from one to two minutes of time savings.
The Red Line, which has been running under ATO since December, has already seen travel times reduced by eight minutes. WMATA is continuing to monitor the system and indicated that further efficiency improvements may be incorporated on all lines later this year.
“Metro’s full restoration of Automatic Train Operations after 16 years is a transformative achievement,” said WMATA Board Chair Valerie Santos. “This advancement drives critical improvements in operations, efficiency, system safety, and the customer experience. It positions Metro firmly on the path to delivering the world-class transit system our region demands.”
ATO automates the train’s acceleration, deceleration, and speed by receiving commands from trackside equipment, resulting in a smoother ride and improved on-time performance.
Although the system automates some of the train’s functionality, operators remain in the cab, responsible for customer safety, door operations, and monitoring track conditions.
ATO is not used in specific situations such as inclement weather, single tracking, or when track workers are present.
With the complete restoration of ATO, WMATA is reaffirming its commitment to delivering safer, faster, and more reliable service, aligning with its long-term modernization and operational excellence goals, the agency said in a press release.
