Overnight signal damage causes single-tracking on Orange, Silver, Blue lines
Damage to Metro signaling equipment caused three hours of single-tracking on the Orange, Silver and Blue lines on Saturday morning, August 10. The delay, officially reported as a " signal problem ," stemmed from a work unit being used during overnight trackwork that caused damage which required repairs. Actually this wasn’t a software malfunction, a prime mover collided with a signal or signals at D98 around 3:30am. — M (@TunnelRatDC) August 10, 2019 The incident occurred at approximately 3:35am on Saturday, August 10 when it appears indications in the Rail Operations Control Center (ROCC) alerted controllers that something had caused a signal or signals outside Stadium-Armory in the "D&G junction" to malfunction. Based on audio recordings of the incident, it appears that a trackwork unit, SM03, was the closest of two units in the area at the time of the incident, and likely the one which caused damage to the signaling equipment. Metro's safety dep...