Real-time processing enables rapid detection of fleeting signals. A new digital signal processing technology originally developed for the commercial world now is being incorporated in military systems ...

NEW YORK — If train signals are one of the principal ailments afflicting the New York City subway system, then how often do the mechanisms, some of which date back to the Truman White House, fail?

Investigators probe manual bypassing of electronic signal Suspected bypassing done as workaround for intersection problem Intersection barrier faced frequent glitches, locals say BAHANAGA, India/NEW ...