Speculation on the DLR discussion boards is as follows:
* ride e-stopped.
* guests cleared from trains/station/queues.
* ride put into manual operation to reset trains to "start" position.
* operator forgets to set downtrack brake before releasing an uptrack train.
I don't know if BTMRR has a manual-only mode, but given that they re-opened the ride the very next day, I doubt *very much* that the trains collided while under PLC control. You don't just try a quick fix and bring a safety-critical system back on line within 24 hours after a failure.
*** Edited 4/6/2004 11:00:48 PM UTC by Brian Noble***
All I can say is WOW! I was at the park on Saturday, and rode BTMRR for the first time in ages with a fastpass 7:15-8:15. My group was staying in the area until the Fantasmic show at 9. We stood directly behind the VIP section, which is in front of the most central raising lights (a great place to wait, the lights raise out of view right before the show). Neither myself or the two guys I was with heard anything. Two of us have seen the show enough to know what is and what isn't part of the sound that goes along with the show. It wasn't an out of the ordinary loud crash, or it happened at the same time as a pyrotechnic, or another loud stunt. After the show we made our way to smoke at the nearest smoking landing, which is right on the water across the island from BTMRR. I didn't overhear any guests talking about the incident. It must have been kept pretty quiet. -Just an FYI for those who are interested..... edit: for clarity *** Edited 4/6/2004 11:31:43 PM UTC by Zingo!*** *** Edited 4/6/2004 11:32:44 PM UTC by Zingo!***
Even in full Manual Mode, this still should not be possible. Because so much depends on block logic, I would be extremely surprised to find out an operator could override it in any way. Granted I can only speculate on it since I have no real knowledge of the workings of the ride. It does make me wonder however, when the ride control system was last updated.