The East Side Access Project Discussion (ESA)

Discussion of the past and present operations of the Long Island Rail Road.

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photobug56
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Re: The East Side Access Project Discussion (ESA)

Post by photobug56 »

Would it be safe to say that they are installing PTC?

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SRich
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Re: The East Side Access Project Discussion (ESA)

Post by SRich »

photobug56 wrote:
Fri Feb 07, 2020 5:38 pm
Would it be safe to say that they are installing PTC?
Yes,

The signal posted in the link looks like an NYCT signal. :wink: I thought that the LIRR was using simple signals for interlocking only. But the signal is a normal red, yellow, green, perhaps because of the connection to Harold Interlocking ?
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Head-end View
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Re: The East Side Access Project Discussion (ESA)

Post by Head-end View »

I too wondered about the use of that type of signal head. But it is similar to what's used in the Penn Station tunnels. I'm hoping that the new LIRR Reduced-Aspect Signals are only going to be used on the less heavily travelled eastern part of the railroad. We should know in the next two years or so with the completion of ESA and the Third Track Project in Nassau County.

ExCon90
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Re: The East Side Access Project Discussion (ESA)

Post by ExCon90 »

There's a post by backshophoss on Mar. 29, 2019 that reduced aspect wayside signals will be installed in the ESA tunnels. I haven't seen anything that indicates what these aspects are--are they the same as on Metro North, or different? (There's an amber light on the signal shown in the link, but not on MN.)

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Re: The East Side Access Project Discussion (ESA)

Post by Head-end View »

Duplicating Metro-North's simple signals would have been the way to go, but LIRR had to re-invent the wheel. They came up with their own set of color-light dwarf signal aspects that look like none ever seen before. I'm told the train crews hate them. There's a chart floating around out there. Try searching Google; I know I've seen it.

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Re: The East Side Access Project Discussion (ESA)

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ExCon90
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Re: The East Side Access Project Discussion (ESA)

Post by ExCon90 »

Head-end View wrote:
Mon Feb 10, 2020 8:52 pm
Try this link: http://position-light.blogspot.com/2018 ... gnals.html
Just what I was looking for--thanks very much.
So Absolute Proceed is the equivalent of a C-light in NORAC?

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SRich
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Re: The East Side Access Project Discussion (ESA)

Post by SRich »

Why is the LIRR using reduced aspect on the ESA for a few mile and must switch back to normal signals...
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Backshophoss
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Re: The East Side Access Project Discussion (ESA)

Post by Backshophoss »

Harold is an Amtrak interlocking,uses CPL and color light signals with NORAC aspects
LIRR seems to use RAS style signals for temporary installations and the ESA trackage,LIRR might change all signals to RAS over time,
to get a standard signal across the RR.
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Re: The East Side Access Project Discussion (ESA)

Post by Head-end View »

I don't think LIRR uses RAS for temporary installations. You're probably thinking of pedestal signals which display conventional position-light aspects on a smaller low-mounted set of signal heads. Those are used during construction projects and for permanent installations where space is limited. The only place RAS are in use so far to my knowledge is between Farmingdale and Ronkonkoma.

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