drum118
Superstar
Maybe there could be loop terminus's for not having to turn backwards.
And the cost to do that is "WHAT" and how much time will be "SAVE" to justify it in the first place?
Been on the Phil line and time save is lost vs. cost, but not in a tunnel.
If crews where in place on the platform waiting to change with the incoming train, some time saving on the BD & Sheppard, but not that much.
The YUS line is already set up for that today. Timing is based on which track is on as well dispatcher throwing the switch to do a crossover. Then there is the headway time between trains.