Khyber Sen
@khyber
she/her | @etany.org | 🦀
Shin-Okubo, 100k riders/day on 1 platform (5-6 m wide) with 2 stairs vs. 350k riders/day on 11 platforms at Penn
I wouldn't call the MTA's designs very optimized. They're just mostly reasonable. storage.ghost.io/c/20/8c/208c...
Without the proposed BMT connection, you can go over the 23 on Beekman instead, still at a 4.5% grade, and preserve City Hall. I'm not sure why reducing the grade is that important. If it's construction tolerance, use a higher grade instead, as all the rolling stock is built for 5.5% anyways.
Also the area was just upzoned by the Midtown South rezoning. 15-18 FAR is already extremely good.
These aren't the French standards, though. LGV Sud-Est runs 300 kmh on long 3.5% grades, not 230 kmh like CAHSR says. And that's with much older loco hauled trains, not new EMUs with better brakes, including regenerative ones.
These were their former standards. It's more complex than just 3.5% exceptional, which was rarely actually used because it's exceptional (like how the NEC won't use exceptional cant). Adjusting the non-exceptional grades makes a big difference, too, as well as their max lengths. Plus it's 4% max now
This shows bus ridership is roughly equivalent to 2019. Not sure about 2014 (although ridership generally has fallen since 2015, including on the subway). www.nytimes.com/interactive/...
It's not. The station is adjacent, not intersecting. The pink, non-intersecting alternative is the preferred alternative.
I love that change and especially the Metropolitan-Lorimer one, but here they removed the times for the opposite direction. I always use these times to know if I should hurry up to get to the NW corner downtown entrance. Now I can't.
Real bus stations (high-floor, pre-payment, fare gates, sheltered) have numerous benefits beyond what free fares can do. Free fares aren't going to get 10 s dwell times, level-boarding, pre-payment, and wider doors (easier with high floors) are. upload.wikimedia.org/wikipedia/co...
Hopefully they're looking at it. We know they're at least considering extending the M to Chambers which gives you more Manhattan transfers, but running to Forest Hills (or at least 96th) would be a lot better. archive.org/details/asto...
A normal cut and cover partial mezzanine. 116th and 106th are about the same depth, but they're doing a cut and cover mezzanine at 106th and not 116th.
No, 106th is cut and cover and a normal mezzanine. The platform is 35 ft deep, similar to 116th (I think 116th is a bit more shallow).
The same decrease in traffic isn't seen at other non congestion zone locations, though:
As for PSDs, the L is one of the more feasible lines, but it's still only 58% of stations without significant reconstruction. And without PSDs at every station, you can't get GoA4 automation to help with reliability.