Acela Speeds

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Re: Acela Speeds

Postby ApproachMedium » Thu Feb 16, 2017 2:16 pm

This is fantastic news as somebody who gets in to Balitmore on time with an Acela, and even a regional train often, and then is forced to follow the painfully slow diesel hauled MARC local all the way to DC. My little heart just cannot wait until I can blow past that slow junk on the fast track.
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Re: Acela Speeds

Postby Arlington » Thu Feb 16, 2017 4:54 pm

I found the 2007 plan (early O'Malley)and it never got beyond 4 tracks @ BWI. So I mis-remembered. Nonetheless, for people who like MOAR rails, this was pure planporn.
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Re: Acela Speeds

Postby east point » Sat Feb 18, 2017 11:55 am

ApproachMedium wrote:This is fantastic news as somebody who gets in to Balitmore on time with an Acela, and even a regional train often, and then is forced to follow the painfully slow diesel hauled MARC local all the way to DC. My little heart just cannot wait until I can blow past that slow junk on the fast track.


Then you have the delays to MARC due to no 4 tracks such as is occurring today. From a MARC notice

MARC Service Alert <alert@mtamarylandalerts.com>
To
MTA Maryland Alerts Subscriber
Today at 11:39 AM
MARC Train 481 (dpt Balt 11:05am) is operating 12-15 minutes behind schedule due to following multiple Amtrak trains.
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Re: Acela Speeds

Postby ApproachMedium » Sun Feb 19, 2017 12:25 am

Yea because there is a track out of service from baltimore to odenton station so they have to share two tracks, also because the one crossover at new carrolton broke a rod last night and they cannot cross trains from 2 to 3 track at carrol until they find the part and have clearance overnight to replace it.
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Re: Acela Speeds

Postby Matt Johnson » Sun Sep 24, 2017 8:40 pm

So, I see based on the same upgraded variable tension hangars that are in place north of Monmouth Junction, it looks like the constant tension won't extend down to Hamilton.

http://www.railpictures.net/photo/631540/

http://www.railpictures.net/photo/631553/
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Re: Acela Speeds

Postby gokeefe » Sun Sep 24, 2017 9:09 pm

Perhaps not this time around in the current project but I think its inevitable at some point in the future.

Just like the New Haven on Metro-North the wires have a service life that has to end ultimately.

I doubt very much that Amtrak will accept any plans which force them to replace variable tension wire "as is".
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Re: Acela Speeds

Postby Matt Johnson » Sun Sep 24, 2017 9:54 pm

gokeefe wrote:Perhaps not this time around in the current project but I think its inevitable at some point in the future.

Just like the New Haven on Metro-North the wires have a service life that has to end ultimately.

I doubt very much that Amtrak will accept any plans which force them to replace variable tension wire "as is".


I wonder what that means for the speed profile. Upgraded variable tension runs from just south of New Brunswick to Monmouth Junction, then constant tension from Monmouth Junction to somewhere south of Princeton Junction, and then upgraded variable tension from there to Trenton. I guess those will be acceleration/deceleration zones on the way up to and down from 160 mph.
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Re: Acela Speeds

Postby ApproachMedium » Mon Sep 25, 2017 9:32 am

Matt Johnson wrote:So, I see based on the same upgraded variable tension hangars that are in place north of Monmouth Junction, it looks like the constant tension won't extend down to Hamilton.

http://www.railpictures.net/photo/631540/

http://www.railpictures.net/photo/631553/


The hangers in your photos are not constant tension they just keep the vibrations from one track from going to another track, keeps the wire more stable for higher speeds and high speed passing of trains. Ham to CP clark did not get new wire and was in the original plans to get wire and constant tension, but since the funding ran out for now its not getting done.
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Re: Acela Speeds

Postby east point » Mon Sep 25, 2017 5:42 pm

A point not made aware to this poster until lately is the spacing of the CAT poles need to be closer than some of the PRR poles are spaced. Just speculation would believe the spacing is related to MAS speeds so even the route is not planned for more than 160 MPH the spacing may be planned for 220 MPH ? Another reason that money ran out is that many more poles were found to be beyond reasonable repair and have to be replaced. If 16 miles a year can get converted to constant tension then the whole NEC including Harrisburg would be done in ~ 20 years. Also the need to mitigate the various slow sections, 2 and 3 track sections to 4 main tracks. The 3 - 2 track draw bridges in Maryland will need replacing with 4 track bridges. Also the Baltimore B&P tunnel replacement with 4 separate tubes. All that work will make the time NYP - WASH 2 hours with probably 3 stops for Acelas .
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Re: Acela Speeds

Postby timz » Tue Sep 26, 2017 5:41 pm

east point wrote:All that work will make the time NYP - WASH 2 hours with probably 3 stops for Acelas .

None of us will live to see three-stop trains scheduled NY to Washington in two hours.
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Re: Acela Speeds

Postby Arlington » Wed Sep 27, 2017 7:19 am

So has OTP or speed yet improved due to any of these recent (ongoing?) upgrades?
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Re: Acela Speeds

Postby gokeefe » Wed Sep 27, 2017 7:29 am

I would guess we won't see it in OTP given that Acela runs close to a perfect schedule most of the time.
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Re: Acela Speeds

Postby jwhite07 » Wed Sep 27, 2017 9:21 am

None of us will live to see three-stop trains scheduled NY to Washington in two hours.

I don't know about two hours, but there used to be an Express Metroliner that did WAS-NYP with one intermediate stop at NCR, taking about 2:40 to do it. I took it once - fun ride. Doesn't seem to be any such express service nowadays - the Acelas all make more stops than that.
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Re: Acela Speeds

Postby gokeefe » Wed Sep 27, 2017 10:35 am

jwhite07 wrote:I don't know about two hours, but there used to be an Express Metroliner that did WAS-NYP with one intermediate stop at NCR, taking about 2:40 to do it. I took it once - fun ride. Doesn't seem to be any such express service nowadays - the Acelas all make more stops than that.


For reference to future discussions of the Acela ... How was the ridership?
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Re: Acela Speeds

Postby Gilbert B Norman » Wed Sep 27, 2017 10:55 am

Mr. O'Keefe, somewhere at this Forum, the Late Randy Resor (Nellie Bly) reported the ridership was not great. Amtrak tried out same with the Acela and with like results.

However, on the New Haven, Amtrak has Stamford-Providence Nonstops, which certainly is a breakthrough from the NYNH&H days.
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