A while back, Dan B emailed this question about SkyTrain, and I thought I’d share the answer with everyone. (Dan B will surely notice this email was sent a LONG while back… so this is better late than never :)
I have a question about how SkyTrain works. I was riding the SkyTrain this morning from Broadway to Edmonds at about 8am . When we approached Edmonds, there was an announcement that the train was going to prematurely terminate there and that passengers continuing to King George would be accommodated by another train that wasn’t far behind. The train I was on stopped and had a longer dwell time than other trains normally have at Edmonds. Afterwards, it left and another train followed about 30 seconds later.
What was the purpose of doing that? Were they going to turn the train to provide additional capacity to the downtown core? Were they taking the train out of service and preparing to take it into the yard? Were they going to deadhead it to Broadway to provide additional capacity for that heavily-travelled segment?
Also, when I look out the window at work, I see other trains stopping at Edmonds for longer than usual times. Usually, another train has to stop behind them just outside the station. Is this because they are taking some of the trains out of service and returning them to the yard once rush hour is over? Do they break-apart the Mark II consists so that they only run with a single trainset?