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Safety Recommendation Details

Safety Recommendation R-16-027
Synopsis: On January 12, 2015, at 3:15 p.m. eastern standard time, Washington Metropolitan Area Transit Authority (WMATA) southbound Yellow Line train 302, with about 380 passengers on board, stopped after encountering heavy smoke in the tunnel between the L’Enfant Plaza station and the Potomac River bridge in Washington, DC. The operator of train 302 told the Rail Operations Control Center (ROCC) that the train was filling with smoke and he needed to return to the station. The WMATA ROCC allowed train 510, following train 302, to enter the L’Enfant Plaza station, which also was filling with smoke. Train 302 was unable to return to the station before power to the electrified third rail, which supplied the train’s propulsion power, was lost. Some passengers on train 302 evacuated the train on their own, and others were assisted in evacuating by first responders from the District of Columbia Fire and Emergency Medical Services Department (FEMS). As a result of the accident, 91 people were injured, including passengers, emergency responders, and WMATA employees, and one passenger died. WMATA estimated the total damages to be $120,000. The National Transportation Safety Board (NTSB) has been concerned with the safety of the WMATA rail system since 1970, when it conducted a special study of the proposed transit rail system while it was still under construction. The resulting report, NTSB/RSS-70/1, Study of Washington Metropolitan Area Transit Authority’s Safety Procedures for the Proposed Metro System, resulted in one safety recommendation to WMATA to “develop the capability within WMATA for system safety engineering and apply system safety principles to all aspects of the proposed [rail] system to identify, assess, and correct those deficiencies identified by the analysis.” This accident is the 13th WMATA rail accident investigated by the NSTB since WMATA rail began operation in 1976. The NTSB has issued 101 safety recommendations to WMATA since 1970.
Recommendation: TO THE WASHINGTON METROPOLITAN AREA TRANSIT AUTHORITY: Install line identification and direction signage at tunnel entrances and inside tunnels.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Railroad
Location: Washington, DC, United States
Is Reiterated: No
Is Hazmat: No
Accident #: DCA15FR004
Accident Reports: ​Preliminary Report: WMATA Smoke and Electrical Arcing Accident in Washington, DCWashington Metropolitan Area Transit Authority L’Enfant Plaza Station Electrical Arcing and Smoke Accident
Report #: RAR-16-01
Accident Date: 1/12/2015
Issue Date: 5/23/2016
Date Closed: 9/25/2018
Addressee(s) and Addressee Status: Washington Metropolitan Area Transit Authority (Closed - Acceptable Action)

Safety Recommendation History
From: NTSB
To: Washington Metropolitan Area Transit Authority
Date: 9/25/2018
Response: We are pleased that you have coordinated with local fire marshals to review your existing signage in tunnels and underground stations. We note that you have revised your current signage standards to incorporate new specifications, and you have installed new signs at identified locations. These actions satisfy Safety Recommendation R 16-27, which is classified CLOSED--ACCEPTABLE ACTION.

From: Washington Metropolitan Area Transit Authority
Date: 11/22/2017
Response: -From Angel Pena, Managing Director, Quality Assurance, Internal Compliance and Oversight (QICO), WMATA: The purpose of this letter is to request closure of NTSB Safety Recommendation R-16-27. NTSB requires that WMATA “Installs line identification and direction signage at tunnel entrances and inside tunnels.” WMATA is providing the attached documentation to support completion of this Safety Recommendation. These revisions to standard operating procedures demonstrate our organizational commitment to improving the safety and reliability of the Metrorail system. Please contact me for any additional information or clarification.

From: Washington Metropolitan Area Transit Authority
Date: 8/18/2016
Response: -From Patrick Lavin, Chief Safety Officer: WMATA is coordinating with the Fire Marshall and local jurisdictions to review the existing signage at stations and in tunnels to determine specific improvements for emergency response personnel. Upon completion of this review, WMATA will hire a consultant to conduct an analysis of signage on station tunnel entrances, Right of Way (ROW) tunnel entrances, shafts, and at decision points within tunnels. WMATA Architecture will revise current signage standards to incorporate new signage specifications. Install new signage at identified locations. Conduct a quality assurance inspection to ensure signage is installed per specification. (Estimated Completion: 04/30/18 – See attached CAP: NTSB R-16-27)

From: NTSB
To: Washington Metropolitan Area Transit Authority
Date: 5/23/2016
Response: On May 3, 2016, the National Transportation Safety Board (NTSB) adopted its report concerning the January 12, 2015,Washington Metropolitan Area Transit Authority (WMATA) L’Enfant Plaza station electrical arcing and smoke accident.1 Additional information about this accident and the resulting recommendations may be found in the report of the investigation, which can be accessed at our website,,under report number RAR-16/01. As a result of this investigation, we issued 31new recommendations, including 2 to the Federal Transit Administration, 1to the mayor of the District of Columbia, 3to the District of Columbia Office of Unified Communications, 1 to the District of Columbia Fire and Emergency Medical Services Department, and the following 24 recommendations to the Washington Metropolitan Area Transit Authority. (List of Safety Recommendations). Chairman HART, Vice Chairman DINH-ZARR, and Members SUMWALT and WEENER concurred in these recommendations. The NTSB is vitally interested in these recommendations because they are designed to prevent accidents and save lives. We would appreciate receiving a response from you within 90days detailing the actions you have taken or intend to take to implement them. When replying, please refer to the safety recommendations by number. We encourage you to submit your response electronically to