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Yeah, this is one of my favorite routes to crayon, actually. The potential for a "Brickbottom Bypass" opens up interesting possibilities such as a Porter <> Sullivan service. Oh awesome! I didn't want to arrogantly presume :) I'm particularly appreciative because I actually started to draw a...

^ I think it’s really interesting what happens to the Orange Line corridor in this concept. The branching on the southern end is modestly parsimonious in terms of decreasing frequencies against decreasing density; the northern end a bit less so, giving that Malden Center is currently a major bus...

Been a hectic day but here is my blogpost: https://railsroadsriverside.com/the-long-lasting-impact-of-the-transit-land-grab-in-boston/ Key points: I argue that the Cambridge Subway, the Washington St El, and the East Boston Tunnel provide illustrative examples.

^ This is an excellent analysis. I've been drafting a blog post on this, so I'm gonna see if I can finish that up first and then I'll add more comments after. But, one of the tl;dr's here IMO: the underserved areas highlighted on your map overlap remarkably with the shorelines and existing...

I agree that that is an intermediate option -- tbh I tried to articulate something like that but couldn't put it as succinctly as you did. In any case, though, in that scenario my first thought would be to look at triple (if not quad) tracking the mainline in strategic locations, with the aim of...

I think if the Blue Line is going to be extended beyond West Station (or Boston Landing), it should be TBM at least under the 57. I'm more agnostic about what happens west of Newton Corner. The way I see it, there are two possibilities: A) high frequency Regional Rail service sees explosive...

Fire at/on top of South Station https://x.com/onlyinbos/status/1777684046232830444?s=46&t=BftsCnAlkCvA1VBAf0kXSg

A new sign design was posted in a Facebook group (though without attribution, so I don’t know the source). EDIT: should have checked my email first — it came from a BNRD email just now.

Definitely a *two-man proposal! I haven't emphasized this idea as much myself because I think there are some unique operational and branding questions, to which I still haven't quite found satisfactory answers... but the concept/goal itself is definitely one I support, for all the reasons you...

+1. The perfect easily becomes the enemy of the good here. As I understand it, Fairmount ridership has responded very positively (i.e. has grown significantly) to the increase to hourly, and now 45-min, frequencies. It seems extremely likely that that increase will be linear (if not better)...

I've waxed eloquent about that doc in the past, but it really is a bonkers piece of work. Case in point: IIRC, the cost calculations for the 4-track alternative (specifically the portal works cost)... don't seem to account for the South Bay portal? Despite having 33% more portals than the other...

Things that are orthogonal to this particular proposed topology: Harvard <> Longwood connectivity: in the design above, I've opted for a "Node Kenmore" approach that centralizes transfers between northside and southside Urban Ring services at Kenmore, at the expense of direct service to...

I need a little bit of escape from IRL, so how about I completely turn my version of the Green Line Reconfiguration on its ear? (The map is not perfect, which annoys me, but oh well.) "Project Criss Cross" routes Kenmore branches to Seaport, and sends all Huntington + Nubian trains into the...

I think you will run into trouble with the (very inconveniently located) wetlands north of Route 128. If the Old Colony stations are any indication, the T prefers its center platforms to be "double width" (e.g. 24' instead of 12'). In practice, perhaps that could be condensed, but given that we...

Jumping back here (gosh golly, it's almost like different components of the transit network are interconnected 😄): Teban54's analysis strongly suggests that there is demand for a Hyde Park <> LMA service: I agree with @The Ratmeister that, if possible, the ideal solution here is increased...

Cool, TIL! Thanks! This seems to buttress the idea that the 39 is likely a key component of a popular Hyde Park <> LMA 2SR. (More in that thread later.) From a Regional Rail perspective, it really is a shame that a bypass like the South Cove Loop isn't practical. Running a Fairmount service...

Right, but that's what I'm saying won't work: everywhere else except the station, the space to add the fourth track is on the western side, where there's even an empty slot under the catenary towers/arches/I-can't-remember-the-term; if you add the track on the eastern side, then all of the...

tl;dr: if Hyde Park can be quad-tracked, then yes I think that cumulative "show-up-and-go" ("SUAG") Purple Line frequencies should be achievable there one way or another. But that's a medium-sized "if". I think this could be doable, but keep in mind it will take something like 2000 feet to...

Thank you! My apologies, I always forget that spreadsheet exists. Full agree with all of this. Agree in principle, but IIRC Hyde Park poses challenges for NEC Quad-Tracking (long-term desire for Amtrak) -- @F-Line to Dudley has more background on this. I also don't know that I would expect...

That data is really fascinating. What's your source? (Stray observations: The 31 and 21 have comparable ridership, despite the 31 historically running 2x-3x as often. The 16 does quite well, given that it requires a little bit of a doubleback.) The "Arborway Transfer" use case is an interesting...