Re: Fairmont Line Upgrade
In another thread EMUs were discussed as being significantly better than DMUs for something like the Fairmount line for a host of reasons. Since both ends of the line are already electrified, it seems like it would be releatively easy to string up catenary, and I imagine the people living near the line would prefer electrics to Diesels. Would the federal government pitch in to pay for this (assuming they wouldn't help pay for the actual trains) since Amtrak uses electric? The benefit for them would being able to send some trains down Fairmount to South Station instead of always using the Southwest Corridor.
Amtrak has plans to upgrade the power draw at Southampton Yard for their own traffic growth needs. It's bulleted in the NEC Infrastructure Improvements Master Plan document from a few years ago. That's one of the prerequisites.
Also depends on where their terminal layover yard ends up. Currently they're planning to use their easement at Beacon Park post- Pike realignment as a main storage yard. That's a short-term constraint for adding electrification because the Beacon St. overpass of the tracks is too low for a 25 kV live wire to safely clear the tops of a commuter rail bi-level. They can't undercut the trackbed to solve this because of the adjacent Yawkey platforms, so the bridge will have to be replaced or the span section over the tracks replaced to use thinner girders. Thankfully that bridge is already in pretty horrible condition and will certainly be on MassHighway's replacement list in a few years. It's maybe next-most critical Pike SGR line item inside the city after the Comm Ave. overpass rehab.
It would be a lot better if the 30-train storage at Widett Circle displacing the Food Market could be arranged as an alternative to Beacon Park, because its central location next to Southampton and wired tracks running through it makes it a far superior and less costly location for electrics. Not to mention way better land use because you can set up that train yard for air rights decking whereas you can't at the Beacon Park easement and are just wasting empty-calorie acreage. Unfortunately Widett requires joint cooperation with the City and BRA/BDPA to grease the skids, and that lowers the odds of getting the superior plan enacted because of how futile it is to get these agencies (especially BRA vs. state) to work together. Therefore the T has no choice but to default to BP unless something more attractive gets opened up for them; MassDOT controls the BP easement in-full and doesn't need to rely on notorious flake local institutions to give them a hand.
Also...Amtrak is a notorious pain in the ass to work with on sharing its electrical plant. They routinely abuse their ownership of the overhead with other commuter rail agencies by jacking rates and making onerous maint requests. Since the T and AMTK are not exactly buddy-buddy to begin with, division of responsibilities needs to be spelled out crystal...fricking...clear in the Memorandum of Understanding that gets signed prior to commuter rail electrification. They have *somewhat* more power-sharing leverage than other states by being line owner, but since Amtrak is still lord and master of all track structures in MA there's still high potential for conflict. Preventative action needed or they're sure to butt heads in a mini-drama once every couple of years.
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If you can solve the layover situation in due time, then it's very straightforward.
- Double the capacity of Sharon substation, halfway between Canton Jct. and Sharon. Amtrak only built it to pump out enough juice to power its own trains; the T, ConnDOT/Shore Line East, and RIDOT all have to pay their own way on capacity increases for commuter trains. Note that the Sharon parcel is only half-full and has empty equipment hookups. That's where the T would install equipment for the power increase. Pricey, but one upgrade here would enable full Providence Line electrics + chaining Fairmount + Riverside off of Sharon sub. It's only if you electrify anything else that they're going to have to build their own substations instead of adding onto this one.
- For this reason Stoughton would not be part of the electrification if you're prioritizing the Indigos. Bridge too far for chaining off Sharon without an additional substation, and service levels are not nearly high enough to get all completist about that branch this way early in the system electrification game.
- Install wires on all Attleboro station platform tracks. Right now it's incomplete because Amtrak doesn't stop there and stays on the 2 center tracks. Trivial cost...the catenary poles are already there with hangars for the unpowered tracks.
- Install paralleling stations every ~6 miles for new electrification. Since there's already one at Readville, they'd only need to put one at/near the midpoint of the Fairmount Line to handle that full branch. 2--one at Riverside, one somewhere at the midpoint--if they did that Indigo branch.
- Wire clearance. You need 2.5 ft. of clearance for a 25 kV line over an unshielded car roof for safe wire clearance from any arcing potential. Commuter rail cars have some roof shielding, but freight does not. Therefore at all undergrade Fairmount bridges they would need 17' + 2.5' = 19.5' of clearance for future freight service to Southie. Worcester Line already has this points west of Beacon Park, so it's just that Beacon St. bridge that's a problem. Most of the overhead bridges on the Fairmount Line are already OK for this due to the recent blitz of MassDOT rapid replacements. Any that aren't can probably be trackbed-undercut in a single weekend no-problem. Morton St. and Fairmount stations are the only platforms closest enough to a bridge to make undercutting impossible...but the new Morton St. bridge I'm almost certain is fully-cleared, and eyeball test shows Fairmount Ave. is high enough above the platform canopies that that one is almost certainly OK.
- Outer layovers. RIDOT has to be funded enough to wire up big Pawtucket layover. Not a problem except for them being a small state that can only pivot point-to-point on major funding. This is probably one place where a fed grant would really help. Readville Yard 2 wouldn't be that hard to wire, as Fairmount only uses a couple berths for its outer layover.
- T.F. Green station mods. Right now the lone platform track can't be electrified because it's the only place the autorack freight trains from Quonset Point have overhead clearance. Trackbed at the platform is undercut by about 2 ft. from the wired Amtrak tracks. To wire that up you would have to: 1) build the northbound platform on the opposite end on a Track 4 turnout; 2) wire it up; 3) temp-shift Amtrak to Track 4; 4) undercut the two center tracks by 4 ft. so the autoracks can pass under the wires; 5) shift Amtrak back; 6) wire the existing platform. Annoying, will take Amtrak coordination...but not that expensive. Another place RIDOT could probably benefit from a fed grant.
If they wanted to go for it and were really-really dead-set on it, then they'd want a 5-year window for doing all this prelim construction before the EMU vehicle order arrives. It's not a lot of steel-and-concrete construction unless Beacon Park is still the layover and the Beacon St. overpass hasn't been taken care of. 5 years is plenty for installing the electrical components, doing up the layovers, and ensuring that the RIDOT pieces like T.F. Green get fully completed.
What that means for vehicles is that they'd probably want to watch closely NJ Transit's upcoming procurement to replace its very old and worn out
Arrow EMU's. They have an engineering firm contracted out to design specs for a bi-level EMU stuffed inside the carbody of a
Bombardier MultiLevel coach. Specs should be delivered (nowish?) since the firm has been working on this for 2 years now, but intra-agency chaos is pretty much the only thing delaying issuing a formal RFP so they're probably not in a terrible hurry while other priorities are consuming them. The MLV's are very similar to our Kawasaki/Rotem bi-levels except about a foot shorter (slightly less headroom) for Penn Station clearances, 2 x 2 instead of 3 x 2 seating, and a double door-pair arrangement on the vestibules. The EMU version of the MLV would just marry that tincan and its seating capacity with self-propulsion and probably the rote-standard singlet and married-pair configurations that most EMU's come in. NJT is a nearly all-Bombardier shop, so their RFP for this is pretty much going to be a grooved fastball for BBD to knock out of the park. Their
Talent EMU's are very battle-tested under 25 kV electrification in Euro-land. The only major engineering challenge is that this would be a first-time bi-level make for that propulsion and would have to have brawny enough power to pull the heavier frame and heavier human flesh of the bi-level seating capacity, as well as have good enough regenerative braking to shrink the radiators enough for the guts to fit under the car without cannibalizing interior seats. Not a huge technical challenge, but it is a configuration Bombardier's never tried before.
IF the NJT make proves to be a winner, that would be the EMU make that could bust the market wide open. NJT, MARC, and AMT in Montreal already use the MLV coaches...SEPTA (for its rush-hour push-pulls) and the MTA for both Metro North and LIRR are planning to order those coaches to completely replace their single-level push-pull fleets. That makes the EMU version extremely attractive for those agencies, because the per-car seating capacity is rote-consistent with their push-pull MLV coaches. Especially attractive for SEPTA to consider semi-parasitically tagging along with the NJT Arrow-replacement order to replace its ancient
Silverliner IV's (and avoid another custom-design debacle like the Silverliner V's). Ditto AMT to augment/replace its
MR-90's. The same exact EMU's will also be served up in a
Bombardier BiLevel tincan (the single most popular commuter rail coach make in N. America) for agencies in 8-inch boarding territory; GO Transit in Toronto is extremely likely to buy BLV EMU's now that they have committed to electrification.
With that kind of market scale, the T could place an order at the trailing end of these other agencies' orders and get a battle-tested EMU that works as a Providence crowd-swallower and a good-enough Indigo vehicle (because of the 2 x 2 instead of 3 x 2 seating) at an attractive price point. More attractive unit price than NJT or SEPTA because they can order theirs with only 60 Hz/25 kV transformers instead of the 60 Hz/25 kV + 25 Hz/12.5 kV, and 60 Hz/12.5 kV transformers that all other NEC-member agencies have to order (lot less weight!). And flexibility to streeeeeeetch out their cars way at the back end of all these orders to give themselves ample time to complete all the electrification infrastructure work. Possibly with even further-stretched option orders so they can tackle full Worcester Line electrification as next step. The only thing they have to avoid is over-customization. Just order the same rote thing that NJT is ordering in Purple livery. Don't get all cutesy; we know what inevitably happens when they get all customization-cutesy.
Long story short...watch with interest what happens with the NJT EMU order over the next 2 years. Because that could be a game-changer at lowering the barrier of entry.