Investigators to interview train operator, study 'anomaly' in key track circuit. June 25, 2009 — -- Circuits on all Metro train tracks throughout the Washington, D.C., system will now be ...

Investigators say they're looking at a track circuit in the area where Monday's fatal Metro transit train crash occurred. The NTSB says five of six circuits showed no problems during tests, but ...

Metro Discovers Problems In Additional Track Circuits. July 21, 2009. By Lena H. Sun. and ...

WASHINGTON (AP) ó Commuter rail tracks in the nation's capital are studded with devices that detect passing trains and tell them when to stop or slow down. But those devices ...

WASHINGTON-- The track circuit likely to blame for last month's fatal train crash is failing throughout the rail system, according to Metro officials. Metro's train detection system did fail on ...

Investigators say they're looking at a track circuit in the area where Monday's fatal Metro transit train crash occurred. The NTSB says five of six circuits showed no problems during tests, but there ...