>>1733774>Increase throughout by eliminating crossing conflicts, which reduces dwell timesThey do in this case since most LIRR trains continue on to the West Side Yard instead of turning around, and most NJT and all Amtrak trains continue on to Sunnyside Yard instead of turning around.
>Improve regional mobility by connecting communities beyond a CBD to each other with one seat ridesUnfortunately, there really aren't any destinations on either side. NJT and LIRR basically exclusively travel in the suburbs where the number of people going between them is low.