Rail

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

Apple to introduce transit maps to iOS9

The directions would offer the ability to plan trips, getting estimated travel times for bus, train and subway transit methods.

NJ TRANSIT refutes report that its trains break speed regulations

CBS went to Secaucus Junction, a major rail hub, and the South Orange station armed with a speedometer app and a radar gun to clock trains as they passed through the stations, with a couple of trains traveling in excess of the 60 mph recommended for trains passing through stations.

San Francisco completes Central Subway tunnel portal entrance

The identical twin TBMs weighed-in at 750 tons each and were affectionately named Mom Chung — for Dr. Margaret “Mom” Chung, the nation’s first Chinese-American physician — and Big Alma — for San Francisco philanthropist and socialist “Big Alma” de Bretteville Spreckles.

House passes short-term extension of MAP-21

The Highway and Transportation Funding Act of 2015, sponsored by House Transportation and Infrastructure Chairman Bill Shuster (R-PA) and House Ways and Means Chairman Paul Ryan (R-WI), passed by a vote of 387 – 35 – 1.

Virginia Railway, GlobeSherpa rolling out new mobile app

The app, developed by GlobeSherpa, has an animated screen, with an image of the Washington, D.C., skyline and a constantly moving VRE train. The moving image serves as a security measure to keep hackers from using screen shots to mimic the app.

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

TruckingInfo.com

THE COMMERCIAL TRUCK INDUSTRY’S MOST IN-DEPTH INFORMATION SOURCE

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