The Monday morning commute turned white‑knuckle on Sept. 24 when an N‑Judah operator appeared to fall asleep, sending a two‑car light‑rail train blasting out of the Sunset Tunnel by Duboce Park and tearing through an S‑curve at far above normal speed. Passengers screamed and were thrown from their seats as the train blew past the Duboce Avenue/Noe Street stop, finally grinding to a halt about half a block down Duboce Avenue. At least one rider was treated for a concussion.
What investigators found
After weeks of review, the San Francisco Municipal Transportation Agency concluded the scare was caused by “operator fatigue,” not mechanical or braking failures. The operator has been placed on non-driving status while personnel protocols are being followed, according to ABC7. Inspectors stated that the braking system functioned as designed and the train did not derail.
Video shows the operator nodding off
Surveillance footage released by Muni after a public‑records request appears to show the operator slumped in the cab, head bobbing and eyes closed, as the train accelerated in the tunnel to roughly 50 miles per hour. When the operator snaps awake, they can be seen frantically pressing controls as riders shout. The clip also captures the operator telling passengers, “We didn't crash, relax,” and the train gliding past the Duboce Avenue/Noe Street stop before finally stopping near Walter Street, per ABC7.
State regulators are investigating
The California Public Utilities Commission opened its own probe as part of its rail‑safety oversight and says it’s reviewing the incident. So far, the agency hasn’t identified any systemic risk, KQED reported. Riders said they received little explanation at the moment, and several filed complaints with Muni.
What Muni says it will change
The SFMTA says that full inspections revealed the brakes and track were “operating as designed,” and the agency is doubling down on fatigue-awareness training while exploring technical fixes, including collaboration with Siemens on software to limit speeds at specific locations, to prevent a repeat, according to NBC Bay Area. The operator remains on nondriving status pending personnel procedures as the agency evaluates additional safeguards systemwide.
Riders want answers
Commuters described a terrifying ride and said they feared the train might jump the tracks. One passenger told NBC Bay Area it “felt like a runaway train” as it barreled through the curve. The incident has renewed pressure on Muni to address scheduling, staffing, and fatigue management as ridership rebounds.
Agency response
Julie Kirschbaum, SFMTA’s director of transportation, said the agency is “committed to accountability” and that “safety is always our top priority,” per CBS San Francisco. Investigations by Muni and state regulators are ongoing, and the agency says it will keep the public updated as it weighs training and technology changes.
