Jacob Alperin-Sheriff @democraticluntz.bsky.social · 08/06/2025The congestion pricing rationale was as much about reducing commute times for obligate drivers as anything else 110 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 08/06/2025Okay but I can’t imagine a US mayor proudly saying they’re gonna do something at the expense of private vehicle use 110 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 06/06/2025I didn’t post it I just saw this from Moshe Lion 110 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 04/06/2025Hi @alonlevy.bsky.social I was told to tell you about the great transit loving YIMBY mayor that Moshe Lion is apparently styling himself as (beginning of an interview with religious Zionist magazine) 010 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 29/05/2025The subway hero episode of 30 Rock outweighs some deaths of suicidal people imo 000 0
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 27/05/2025IE unlike the Golden Gate Bridge or a cliff it’s a two step process, you’re not dying from jumping into the tracks alone, need train to hit 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 27/05/2025Either way, why waste precious transit funds on this it’s clearly orthogonal to automation AND surely far more expensive than several dozen sensors per station to alert for track obstructions. 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025I think it’s more “people not having to see someone else die” they still have 2A option 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025How is that related to automation? 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025Ah, what is the purpose/need for these? 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025And surely operators had bidirectional comms prior to? 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025Didn’t they do that when they upgraded for continuous cellphone reception 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025And the idea is that the automation will allow reduced headways between trains? 000 0
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025Are they relying on sensors on the track that weren’t there before to let trains know where other trains locations are as a failsafe beyond GPS? How have they been doing it prior, via voice comms “I’m between stations A and B?” 200 2
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025IE those exist already on every car they’re just manually activated no? 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025Oh I didn’t think of the fail gracefully issue. The signaling and doors should surely be in the tens of thousands per train at most to hook into the automation computer system (minus software writing) 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025Why would automation costs scale linearly with miles of track? Maybe with number of stations 200 2
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025Also 1 billion per mile isn’t plausibly as much as 50 times what it could be realistically like this could be 000 0
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025I just can’t understand how they could price it at 3-4 times the cost of 1 from scratch Waymo car per rail car in the system especially when most of the infrastructure necessary is there 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025Okay but building a tunnel seems wildly more expensive than integrating already existing sensors to feed into software and writing software to automate (child’s play relatively speaking) 000 0
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 21/05/2025Uh … that just makes it even worse to cost $5.6 billion 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 19/05/2025@nilo.bsky.social @alonlevy.bsky.social How is the 5.6 billion price tag to automate WMATA not like 50 times as expensive as it should actually be? 320 3
Reposted by Jacob Alperin-SheriffThe New York Times @nytimes.com · 11/05/2025About 130,000 Igloo coolers were recalled on Thursday after consumers reported 78 fingertip injuries from the cooler’s tow handle, 26 of which led to fingertip amputations, bone fractures or cuts, according to the U.S. Consumer Product Safety Commission.nytimes.com130,000 Igloo Coolers Recalled After Fingertip Injuries, Including Amputations 3515555 155
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 09/05/2025How does BART manage to get to 10 minute headways when it has a quadruple tracked section and significant interlining? 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 09/05/2025It’s not about risk it’s about reality 000 0
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 09/05/2025Actually BOTH of the first 2 increase the number of tripled lines (unless you build a new SS to Columbia Pike line) 200 2
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 09/05/2025some kind of Memorial station around the Bureau of Engraving and Printing 000 0
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 09/05/20251 alone causes a new triple interlining unless it’s something like a new Silver line, Silver Spring ↔️ Pentagon ↔️ Rosslyn ↔️ via new South bypass into Orange/Silver west to Dulles etc, via Columbia Heights and then south on 14th with a Logan Circle, McPherson Square interchange with Blue/Orange 200 2
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025Very true though WMATA is often hitting the 1 million ride mark Tue-Thu thanks to the great President Trump’s back to the office move (also I can’t imagine what Virginia traffic is like) 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025But then you run into the too much problem, sad to see 000 0
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025This might all be worse than Columbia Pike but the problem is that also makes interlining much worse unless you build it as a big beautiful 14th street line initially merging at Columbia Heights 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025Obviously it’s worse than even the constrained third Potomac tunnel (stops at Georgetown and West End then into the Red Line with a stub situation in the hopes of future extension east) but even that is 2.5 miles :( sad 200 2
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025It’s not great but it’s likely better than the Streetcar or Moco BRT spending A Rosslyn 2 with Georgetown West End into Farragut North would still be better with requisite upzoning and redev at stations between Silver Spring and Noma 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025Probably at least a minute faster (2 intermediate vs 6) if we assume 45 second stops Plus 6 min headways with transfer at Rosslyn should save a minute or so even to BOS trunk lines in city, 4 minutes if you get the direct 200 2
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025Either way though it should save 4-5 minutes on avg to get from any solely Orange/Silver station to L’Enfant Plaza, the alternate route is ~4.6 miles with 3 stops which has got to be at least as fast as ~3.9 miles with 7 stops 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025Are people logical like that or do they add extra weight to waiting time? 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025I ain’t the expert though you tell me if that would help increase riders 000 0
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025It would get you nonstop 6 minute service from SE to the VA Jobs corridor and from Orange/Silver to downtown though 200 2
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025This wouldn’t get you 3 minute service unless you lived at L’Enfant or Waterfront 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025IE adding enough track to allow diversion of every other Silver and Orange train to Arlington Cemetery to Pentagon to L’Enfant to Waterfront down to Branch Ave 000 0
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025I didn’t realize that, honestly a 3 wyes option might be worth a billion 200 2
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025It also may be bleak for office jobs over next 25 years who knows 000 0
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025If anything it’s about to lose one or more (Chicago has to be dire too) of its four other peer-level 000 0
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025That’s rather extreme cope it’s not like it’s going to change having the best in US outside of NYC 300 3
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025I thought you moved to MD? You live in PG? 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/2025Still less of a waste than the streetcar, there is a reason the only lines that survived had some of their own ROW 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 30/04/20251 grade separated trunk line is reasonable and probably won’t happen 100 1
Jacob Alperin-Sheriff @democraticluntz.bsky.social · 29/04/2025You only ride the Red? Sad to see! 100 1
