Passenger wrote:What was the reason for not creating that branch in the first place?
Or was the original plan to go that way and not to 33rd Street?
I think what happened is ww1, and as others have pointed out, the way the tracks would run, it could pose a problem with revenue trains crossing live tracks carrying 33rd st trains. Remember, they also single track that line from time to time, which would be a real issue if the track shut down was the nj bound side. Having a wye style interlocking would make the most sense.
The extension originally was, according to maps ive seen, supposed to extend to Astor place. Today that would make no sense, and a connection to new jersey in the event the prr tunnels are not operational, would be a really good idea, especially since lirr also uses Penn station. As well it could provide a second option for people who just want to get to Newark or Newark airport.
Is there space in Brooklyn for the tunnel? What would the route be, and where would you think to put stations?
No I'm not a railroad professional, but that doesn't mean I can't provide first hand observational comments.