Internal review says operator appeared to nod off before a 50-mph curve; video released under records request.
SAN FRANCISCO — San Francisco transit officials say operator fatigue caused a Sept. 24 N-Judah scare that hurled morning commuters to the floor after the operator appeared to fall asleep and the train sped through a tunnel curve near Duboce Park.
The incident matters because the investigation has closed, the video is public and the agency is weighing schedule and training changes. The two-car inbound train was packed at 8:37 a.m. when it entered the curve at about 50 mph, according to data reviewed by engineers. The operator braked and stopped after the jolt. One rider reported a concussion; others said they were bruised. The operator was removed from service that day and remains on non-driving status.
Officials said they examined the braking system, the train’s event recorder and track conditions and found no equipment defects. Footage shows the operator slumped forward before recovering and addressing the car. Riders can be heard pleading to exit as the train slows. “We hold ourselves accountable for safe, reliable service,” Transportation Director Julie Kirschbaum said, calling the footage “disturbing” and the conduct “unacceptable.” The agency declined to identify the operator, citing personnel rules.
What remains unknown is the operator’s schedule in the days before the event and whether overtime or split shifts played a role. Managers said they are auditing rosters and monitoring practices across rail operations. The video was released through a public records request after riders described the episode online. Engineers noted that the curve’s speed restriction is designed to prevent derailments and passenger falls; those safeguards depend on operator vigilance.
Muni’s N-Judah is its highest-ridership line, linking the Sunset District with downtown. The Sunset Tunnel’s east portal feeds directly into a tight turn beside Duboce Park, a spot familiar to daily commuters. Transit analysts say fatigue has become a national concern for public transportation agencies as staffing shortages and service restorations strain schedules. Industry standards encourage minimum off-duty rest periods and limits on consecutive days behind the controls.
The agency said it will stage a safety stand-down for rail operators, refresh training on speed compliance and emergency communications, and review discipline for the operator under labor agreements. A board briefing is expected later this month, when officials plan to outline corrective actions and any policy proposals tied to scheduling and fatigue risk.
Rider accounts underscore the impact. “People flew out of their seats,” said commuter Samir Patel. “I grabbed the pole and still got thrown.” Others described a long, quiet ride after the stop as passengers waited to transfer. Several said they plan to keep reporting near-misses. “It shook trust,” said Sunset neighbor Lily Wong.
For now, the agency says the operator remains off driving duty while discipline and retraining proceed. Managers say they will update the public after the board discussion later this month.
Author note: Last updated November 12, 2025.