[Pedestrian]

Originally Posted by electricron

Those extra stops, 19 vs 1, means the CHSR train would still catch and pass the slower Caltrain train, just further along the route than before.

Remember, the CHSR train covers that distance in 27 minutes with one stop. Instead of adding an additional 38 minutes to 35 minutes, we now would be adding it to 25 minutes, totaling 25 + 38 = 63 minutes for the Caltrain train. That is still adding 2 minutes per stop to both train times. 27 minutes for CHSR +30 minutes head start for Caltrain is 57 minutes, 6 minutes shorter than what the Caltrain needs. So even in the best possible scenario, the express trains passes the all stop trains once. All we did is shift where the pass happens. Wherever that pass happens, the trains can be scheduled to make the pass there with a shorter head start.

I'm not arguing it won't work. Just telling you (and everyone) what I've read about HOW it will work: Trains running at same speed between stations, new sidings (i.e "passing tracks") to allow the HSR to pass stopped CalTrains (presumably at stations where the HSR doesn't stop).