Green Line Collision 6/1/2022

I would say a significant chance of the operator having fallen asleep.

(?) Nine in the evening. Operator feeling drowsy perhaps from not enough sleep the previous night. Shakes his legs or shoulders to stay alert. Gets down to literally fighting to stay awake. Into a dream state. Going in and out of consciousness every few seconds, not "out" long enough to let go of the deadman control. Literally hallucinating that he is still driving the (a) train, still aware of the sounds about him. Jolted to full awake by the collision. Having not dreamed of a different subject or of being in a different place, denies falling asleep when the investigation starts.

theMainer wrote: ↑Tue Jun 07, 2022 4:41 pm

Disney Guy wrote: ↑Mon Jun 06, 2022 7:20 pm It was possible to run full double tracked service between North Station and Union Square, changing ends on one of the North Station (Green Line) platforms and crossing over within the car storage area..

Additionally it apparently is possible to turn trains back at Haymarket due to a crossover in the old station area to the North (per vanshnookenraggen's track map)

Suspect the power zones were the reasoning for not operating shuttles as stated above.

Tue Jun 21, 2022 4:11 pm
Needed: At crossovers and at junctions near power zone boundaries, circuit breakers and switches to allow quick reconfiguration of power circuits so there is a choice of power zone for the crossover or junction. A crossover does not serve its intended purpose when it is in a dead power zone and trains in a live power zone nearby that could remain in service otherwise cannot change ends as needed. Possible project to apply for federal funds for. Secret: All of the controls for reconfiguring the power must be in one location, typically right at the crossover, to prevent feeding power from two zones to the same section of track which would equal a short circuit..

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