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| Re: Expansion of single track Empire Connection to double track? (1468434) | |||
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Re: Expansion of single track Empire Connection to double track? |
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Posted by NIMBYkiller on Tue Mar 6 01:48:54 2018, in response to Re: Expansion of single track Empire Connection to double track?, posted by Bill West on Mon Mar 5 16:34:04 2018. The link you attached doesn't like being a link, but I think I was able to find the profile you were talking about on google. Your math seems a bit off, but nonetheless, it appears you're right. Basically from 9th Av to midblock between 10th and 11th is approx 1,375 ft, which at a 2% grade gives us a total drop of only 27.5 feet, which is not enough to clear the North River tube which appears to have dropped about 20 ft in that same distance according to the image (although if you take the average of the written grades, .4% and 1.93% and apply that to the same roughly 1,375 ft from 9th Av to midblock 10th/11th you get just over 16 ft, but still too low).From what I've been told, yes, as you presumed, the WSY leads rise (and at a pretty steep grade from what I'm told. I'd have to double check, but I heard once a train gapped out and got stuck because it didn't have enough momentum to continue up the grade into the yard to the point where it could draw off the 3rd rail again). My previous presumption had been that the Empire Connection passed under the North River Tubes approach, but given this I guess it is actually threaded between WSY and the North River Tubes approach. Can anyone confirm this? In which case then, the question is how early does the Empire Connection actually turn north, as in did they have it start to cross everything at the very moment it was able to clear both, or did it continue for a bit and then turn (if the latter, then is there enough space to put in another tunnel north/east of it that can both pass over North River Tube approach and under WSY?). Or an even more basic idea, given that the Empire Connection passes under WSY already, and, IINM, WSY is the lowest point for any Hudson Yards construction project, could the tunnel just simply be expanded out and be made large enough for 2 tracks? The 7 however is most definitely not under Hudson Blvd. When you ente the escalators from the park, you're already west of Hudson Blvd and you're continuing west, down the escalator and along the tunnel that leads to the actual platform, so I'm pretty sure the 7 is actually under 11th Av, so running this 2nd Empire Connection track under Hudson Blvd and the adjacent park on its west side could very well still be possible. |
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