NTSB issues safety recommendation to D.C. Metro

Posted on July 13, 2009

On Monday, the National Transportation Safety Board (NTSB) issued an urgent safety recommendation to the Washington Metropolitan Area Transit Authority (Metro) calling for enhanced safety redundancy of its train control system.


The recent accident on the Metrorail's Red Line between the Fort Totten and Takoma stations has shown that WMATA's train control system is susceptible to a single point failure, because it did not fail safe and stop a train when detection of a preceding train was lost.


The urgent safety recommendation issued on Monday calls for Metro to evaluate track occupancy data on a real-time basis in order to detect losses in track occupancy and automatically generate alerts to prompt such actions as immediately stopping train movements or implementing appropriate speed restrictions to prevent collisions.


The Safety Board made a second urgent recommendation to the Federal Transit Administration (FTA) urging the agency to advise all rail transit operators with train control systems capable of monitoring train movements to evaluate their systems for adequate safety redundancy.


Although the NTSB's investigation is not yet complete and no determination of probable cause has been reached, investigators have concerns regarding the safety redundancy of Metro's train control system.


The safety recommendation letter to Metro may be found here.

View comments or post a comment on this story. (0 Comments)

More News

Daktronics announces $3.2M NYCT signage order

The multi-colored LED displays, part of the subway system’s Public Address Customer Information System, will feature next train arrival and destination information as well as graphical information. A text to speech function aids visually impaired transit riders with clear and easy to access messaging.

Chicago's Metra completes charging station installation

To further enhance the agency’s customer connectivity options, Metra will also be installing free Wi-Fi in the waiting areas of downtown stations within 45 days, and it recently announced plans to test Wi-Fi on 11 cars systemwide before January 2016.

MBTA to deploy GIRO's HASTUS-Rail software

Keolis selected HASTUS-Rail after receiving on-site demonstrations of the software handling various scenarios that showed significant efficiency gains, cost savings and flexibility to adapt to Keolis’ operations, including compliance with the FRA’s hours of service regulations, according to the company.

Wabtec acquires Faiveley Transport

The strategic combination will create one of the world’s largest public rail equipment companies, with revenues of about $4.5 billion and a presence in all key freight rail and passenger transit geographies worldwide. 

Cummins ships first QSK95 engine for the rail market

The engine, rated at 4400 hp (3281 kW) will be delivered to Siemens® manufacturing facility in Sacramento, Calif., where it will be installed into a Charger® locomotive.

See More News

Post a Comment

Post Comment

Comments (0)

More From The World's Largest Fleet Publisher

Automotive Fleet

The Car and truck fleet and leasing management magazine

Business Fleet

managing 10-50 company vehicles

Fleet Financials

Executive vehicle management

Government Fleet

managing public sector vehicles & equipment



Work Truck Magazine

The resource for managers of class 1-7 truck Fleets

Schoolbus Fleet

Serving school transportation professionals in the U.S. and Canada

LCT Magazine

Global Resource For Limousine and Bus Transportation

Please sign in or register to .    Close