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SFMTA Blames Operator Fatigue for N‑Judah’s September High‑Speed Scare

The agency’s probe found no mechanical fault on the train or tracks.

Overview

  • The Sept. 24 morning run exited the Sunset Tunnel near Duboce Park at about 50 mph, passed the Duboce Avenue and Noe Street stop, and stopped near Walter Street without derailing.
  • The operator has been placed on non‑driving status in line with internal protocols and the labor contract.
  • SFMTA has reinforced training that emphasizes recognizing and reporting fatigue among operators and front‑line staff.
  • The agency is working with Siemens on software to cap speeds at specific locations on the light‑rail system.
  • Video circulating online appears to show the operator slumped before the jolts and later apologizing to riders, and at least one passenger reported treatment for a concussion.