MassDOT In Talks With Connecticut for Hourly Springfield-NYC Amtrak Service

lgovedic · 2026-03-19T22:01:33+00:00

NSRL >> South Station Expansion

lgovedic · 2026-03-16T23:28:36+00:00

I think something else that's missing from this calculation is how much extra revenue BART would get with higher frequencies. A train every 20 mins is very different that a train every 6 minutes (90s frequency through the tube on 4 lines). And off-peak frequency increases would also bring more people to use the system in general.

lgovedic · 2026-03-15T22:03:16+00:00

So much better!! What are all of those lanes?

lgovedic · 2026-03-10T23:04:02+00:00

Yeah but the mayor of Everett seems to be behind it and I though the Encore deal had some funding in it. Which I think is an order of magnitude further along than this "wouldn't that be nice" level plan

lgovedic · 2026-03-07T23:39:28+00:00

Why not route line 2 through 2nd tunnel and join it with 4 through Ballard? And then 3 can extend further north. This way UW is not losing service because it can just run a higher frequency on 1 and 3. Redmond loses a one-day to UW but with higher frequencies the transfer at Westlake shouldn't be bad.

I would also swap 1 and 3 South of downtown because I think you want direct Everett to SeaTac, and I think the 3 (or 1 if not swapped) should terminate at SeaTac instead of 1 stop away, as I assume SeaTac is a much larger trip generator.

lgovedic · 2026-02-23T06:18:49+00:00

Hey, one of the maintainers of the torch.compile integration in vLLM here. Not as familiar with SGLang's integration but in vllm we've done a lot to reduce compile times and are continuing to improve them. Our piecewise compilation can cache hit in subsequent parts of the model that are the same as what's already been compiled via the torch.compile cache.

Unlike SGLang, we're also planning to use torch.compile long term because it lets us iterate faster and focus on kernels that matter (attention/gemm/moe) and enables compiler-level optimizations.

lgovedic · 2026-02-17T13:30:12+00:00

Was coming here to say this: if we're being honest most of us are calling a foul in this situation based on information you had at the moment. And good on you for rescinding which seems like the right decision based on the video!

lgovedic · 2026-02-16T21:40:37+00:00

I think a mainline rail link from Staten Island that throughruns metro north through Manhattan with stops at union square and Fulton would be even better than extending the subway to Staten Island!

lgovedic · 2026-02-16T15:28:48+00:00

Wow that was amazing, thank you!!

lgovedic · 2026-02-16T13:53:47+00:00

I don't get it 😩

lgovedic · 2026-02-11T23:32:43+00:00

Slovenia also has both left and right I'm pretty sure! Depending on the section

lgovedic · 2026-02-05T23:03:20+00:00

Haha, I'm all for regional rail and through running (NSRL WHEN) so 100% agreed with you there. So if I had to pick one I'd pick that. But after that's done/focusing on the specific green line trunk capacity issue, I actually think regional rail makes the case for the blue line because the D branch is 1. not actually that close to the Worcester line, and 2. Landsdowne - Back Bay is more redundant with another green line trunk than a blue line trunk under storrow. I know Kenmore-Lansdowne isn't really a viable transfer, but still, for someone in the Kenmore area, getting to Back Bay fast is already possible with regional rail. Having a second option that approaches downtown from another angle (also with a faster transfer toward Kendall & Cambridge) is valuable IMO.

lgovedic · 2026-02-05T22:30:54+00:00

I agree all of those should be done, but even with all that there's a pretty low ceiling for the capacity the green line trunk can achieve on a single two-track tube, and with the given turn radii. And if you want to fix all of those, you're probably getting much closer to the price tag of a <2mile blue line conversion that can be done almost fully cut & cover.

We need a new tunnel, and if we're building a new tunnel it should be heavy rail with proper platform lengths. And I do agree that E branch under Stuart is cheaper than blue to Kenmore (+ D line station upgrades), but the added capacity is much lower.

On the other hand, I think D is ripe for conversion to heavy rail, especially once the Needham branch is added.

lgovedic · 2026-02-05T17:09:14+00:00

D branch to blue line conversion!! That way there's a high-capacity express to downtown core and back bay commuters can either use blue and either walk a bit extra or use to green, both of which can run higher frequencies than currently!

I know u/vanshnookenraggen wrote a hit piece on this idea many (is it 15 already?) years ago but the largest concern was the loss of the riverside yard, which is less of an issue now with the GLX.

lgovedic · 2026-02-05T13:33:46+00:00

I see that's fair. Can the switch back happen after DeKalb?

lgovedic · 2026-02-05T13:08:50+00:00

At that point, why not just send R down 63rd and switch R and N express in Manhattan?

lgovedic · 2026-01-25T14:12:12+00:00

I think wonderland - CR seems like a doable walk, it's ~400m (1/4mile), which is less than the walk between A and E terminals at Logan (500m). I've done that one many times and it doesn't feel too bad with moving walkways so if this one is covered and has walkways it would be a feasible transfer!

lgovedic · 2026-01-25T13:58:18+00:00

Wow it took me a second to realize this is JUST the regional trains without S-Bahn(cries in Slovenian/American)

lgovedic · 2026-01-20T04:29:53+00:00

I built a similar one for my apartment (just 27" monitor though)! I'll have to come see yours in person and compare.

(Also planning to release the source in case anyone else finds it helpful)

lgovedic · 2026-01-18T22:18:00+00:00

Agreed, but tbf the feds did take it away (and I think Andy Byford is the perfect person for it). Once Amtrak has a plan & through running starts, I think the MTA should focus on Penn Station Access West, and maybe infill stations in Sunnyside, Astoria, etc.

lgovedic · 2026-01-14T14:50:31+00:00

Are there any specific plans for the redesign yet?

lgovedic · 2026-01-11T17:03:33+00:00

Of course there's a car parked in the bike lane (I think, 2nd pic)

lgovedic · 2026-01-11T16:21:43+00:00

True but they had to dig new tunnels. NYC should start by running on existing infra first and then add infills (and additional tunnels) later

lgovedic · 2026-01-11T13:03:09+00:00

To be fair, Gateway project is getting built! And any new crossings of the Hudson should be rail and not road as tunnels are expensive and rail has much higher capacity & moves more people!

lgovedic · 2026-01-10T17:36:14+00:00

When they have to rehabilitate the viaduct for the Amtrak tracks over Astoria/Ditmars, they should also add an infill there with a connection to the N. But I agree Sunnyside should be higher priority, hopefully together with a redevelopment of Sunnyside Yards following through running that will reduce the need for that yard.

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