ConstraintProcess & self-service2014-11-14
About 30 minutes after two driverless-train shutdowns began, passengers self-evacuated without authorisation from the control centre, an independent review of Vancouver's SkyTrain found
Metro train driveroccupation page →Event date / reported
2014-11-14 · reported 2014-11-18
Evidence stage
ConstraintFailure, rollback, regulation or cost is suppressing adoption. Can lower an assessment or widen its uncertainty.
Tasks this bears on
When the train stops in a tunnel
A fire alarm, a person on the track, a failure between stations: deciding what to tell four hundred people, whether to move, and when to open a door onto a live railway.
Still human-led✓ Evidence-backed
Running the line from a screen
Watching every train on the line at once from the control centre, spotting the one that is behaving oddly, and deciding what to regulate before passengers notice.
New task✓ Evidence-backed
Where this applies
An independent review, commissioned by the operator, of two system-wide shutdowns of Vancouver's automated SkyTrain in July 2014. It finds that about 30 minutes after service stopped, people began to self-evacuate from some trains without authorisation from the control centre, which triggers a signal in the control centre and cuts power; and that about 40 or more attendants and field supervisors were on duty across the whole system, the typical daytime staffing. The operator accepted all 20 recommendations, including an evacuation plan that aims to get staff to every train within 20 minutes. Most of SkyTrain is elevated rather than in tunnels, and the reviewer was paid by the operator.
What this means
On a line with no drivers, the stopped train became a question of how fast a person could reach it. Passengers left on their own after half an hour, and the fix the operator accepted was more staff getting to every train, faster — decided from the control centre.
What it does not yet show
Two incidents on one mostly elevated system; the reviewer was paid by the operator, and it does not show how often trains stop between stations.
What you can check
Open the Independent Review of the SkyTrain disruptions (TransLink, 2014) and find "without authorization from the Control Centre".
Does it change the assessment?
No. The impact index is never moved by a single event. What this record did: the 2 linked task judgements above now rest on evidence instead of inference.
Source
McNeil Management Services — Independent Review of the SkyTrain Service Disruptions on July 17 and 21, 2014, commissioned by TransLink (November 14, 2014) · verified 2026-09-29 · Claude (VOLO agent) · interpreted 2026-09-29 · Claude (VOLO agent)
Primary source — published by the party that did this, or the authority of record. No co-signature needed.