Fan Railer

West 4, Canal, and Hoyt interlockings on the soft shell T, southbound.

4140-4144 + 4160-4164 BiT'ing tonight:

4145-4149+4165-4169 burn-in testing last night ~9pm-10pm, plus R211T last run of the day on the C.

Is the T still out? Did it get re-routed via 6av bc of that 12-9 at 14?

17 hours ago, U-BahnNYC said:

Why are we suddenly so concerned with smoke when we have old 75 footers running in service with no smoke alarms and no emergency intercoms/safety mechanisms?

Again, because you CAN'T isolate (lock out) a single car in a 5-car open gangway set. If one car experiences a smoke situation, all 5 cars are then directly affected.

There were two sets running around mid-day yesterday; seems like the T/Os are getting more comfortable running them. They sound great running fast!

5 hours ago, JustTheSIR said:

Oh alright

and I hope I’m not being annoying but, what happened to the WIP SIR route from 2016?

No idea. Someone out there has a copy of the full route to Tottenville, but I've never seen it.

15 hours ago, zacster said:

That's what I thought but I'm also thinking that if they are posting a 50 speed, they are anticipating that the train can do 50 too.  If it's computer limited it can be easily changed.  Also, my understanding is acceleration is faster in CBTC territory even if the top speed isn't.  I can feel that when I ride the L train, and it seemed that way on the E too on QB where it is slower on Archer but then faster once on QB proper.

Yes, the performance curve is higher when the train is in ATO.

On 8/4/2023 at 4:17 PM, JustTheSIR said:

hey @Fan Railer how did you get wheelslip 

 

There's a setting in the train code where you can choose how the slip-slide system works. I haven't played around with BVE in over half  a decade, so I can't be more specific than that.

On 8/1/2023 at 9:07 AM, zacster said:

Can the R68s on the B even reach 50mph?  That curve at Beverley Road is posted as that according to the video.  I've stood at Cortelyou as a B train passed by many times and it never seemed to be going very fast.

I've been riding the Brighton line my entire life, always living near a stop.  It used to be really fast but the R68s and the speed restriction made it feel like a crawl sometimes.  Maybe when the put R211s on the B (just speculation) it'll feel fast.

Nowadays, without field shunting, no. The best you can get on level track with the average SMEE set is 47-49 mph. That's what the R46s on the A balance out at on the rockaway flats.

The NTTs are the same way now too; the 211s make the same speed on the  flats as the 46s do. They've been computer limited to match the average SMEE  top speed, although they do accelerate a little faster in the lower speed ranges. I remember the R179s hitting 52-54 mph on the flats before they got dumbed down too.

On 7/30/2023 at 9:48 PM, Nova Fly Guy said:

There is 1 set currently assigned to the  

That doesn't mean it runs. All the shuttles yesterday were 46s.

23 hours ago, Kamen Rider said:

meanwhile the distance measurements are completely off kilter on 4060-4069. Her AAS was going haywire yesterday, I had to reset it almost every other stop going uptown, to the point I just said f**k it and did it myself after 145th street. The train had no clue where it was. 

If that's what happens with the AAS count, which is also based on wheel rotations... using a tach for CBTC really needs to be rethought for the long-term future of the technology in general. 

Well, knowing the way the TA specs things, it's ENTIRELY possible that the CBTC tach is completely unrelated to whatever equipment is used to track wheel rotations for the AAS. The AAS system is probably on a powered / braked axle, so every time there's slip/slide, it gets thrown off.

3 hours ago, Kamen Rider said:

I don’t know if it was to reduce weight or what, but it really doesn’t feel all that different.

 

As mentioned, on the B division, the single unpowered truck per set is to facilitate the installation of CBTC related equipment. Specifically, an axle tachometer to measure distance travelled. This method is more effective than whatever the previous used was. That is why the axle the tach is installed on has to free wheel; no motor or brake shoe to induce possible wheelslip and throw off the distance measurement.

It's not going to feel different from a 100% motorized train because the motors installed are powerful enough to make up the difference in performance through a few software tweaks. The trains are scaled back from what they can really do anyway. We went from 4,600 hp (10 car SMEE) or 3,680 hp (8 car 75-foot) DC motor trains to ~6,000 hp AC motor NTTs on the B division, and yet the NTTs don't perform all that much better than the SMEE cars these days. I've heard stories of the OG NTTs (142s and 143s) hitting 70 mph on F5 track out on the flats when they were first testing, just to see what they could do, while today, everything I ride out there, SMEE or NTT maxes out around 47-49 mph. 

On the A division, going to 70% motorized trains with higher HP motors dropped hp from 4,600 to 4,200, but the A division NTTs are a bit lighter than their SMEE counterparts (owing to the two-less motors on the B cars), so that probably accounts for the minute performance difference. The benefit is fewer motors to maintain, resulting in cheaper operation. The authority just took advantage of the presence of the trailer truck on one of the B cars to install the CBTC equipment onto when the time came.

On the B division, starting with the R179s, A1 cars have one unpowered truck with one free wheeling axle (no brakes) for CBTC purposes. On the 179s, it is on the blind end of the car, while on the 211s, it is on the cab end. All other axles are motorized on the unitized set.

On the A division NTTs, A cars are fully motorized, while the B cars have an unpowered truck. On the R188, the C car is just a B car, but with the CBTC related equipment on the free wheeling axle of the unpowered truck.

Track speed plays into the capacity issue. As soon as you're on the stadium line, you're only good for 30 mph the entire way. Couple that with signal restrictions approaching the terminal if you don't have a line up, the slow-accelerating 10-car multilevel dual mode trains, and the long loading and unloading times due to the single leaf quarter point doors on the MLs, you have a hard hourly capacity limit.

On 11/10/2022 at 9:33 PM, DCTransitFilms said:

Don't you mean D45 CRT family?

no

17 hours ago, Kamen Rider said:

I was once told by some bus drivers I knew that Long Island Bus was going to be folded into MTA bus. Not as in RBO, but merged completely.

 

obviously that didn’t happen.

but the point is someone said it was and it spread.

I head a few F Train operators last week talking about how they’re going to move some R179s to Jamaica Yard because “they want the A to be all R211”

these guys were saying all sorts of negative things about those trains… which they themselves have never operated.

 

Like I said the other day… I would not be surprised if I am the ONLY person (if not one of the few people) reading this who has actually been inside the R211Ts… and yet here we have people doing things like repeating hearsay rumors about them and talking like they know everything there is to know about them.

Long story short, the RTO rumor mill is gonna rumor mill. It always has. I've also heard some wild conjectures in the last 15 or so years that never came to pass. Don't believe anything until you see it happen.

20 minutes ago, Ale188 said:

I’m not a foamer, and I get it. You literally don’t have to repeat what somebody said earlier. And what do you mean by the last sentence?

Screams via caps lock about some trivial equipment thing, then denies he's a foamer. Yea ok buddy. Whatever helps you sleep at night.

3 hours ago, Lawrence St said:

You need to chill with the attitude, I don’t know what is your problem with anyone that remotely has a different opinion then you.

You are literally the last person to be telling someone else to chill lol. Half the drama on this topic alone involves you to some capacity or another.

Redit users pinged it in service like 15 min ago or so.

10 hours ago, jon2305 said:

The R211A's current 30 day revenue test is close to the finish line. If or when all goes well at least within the next few days, then things would get rollin' soon enough.

that's under the assumption there wasn't another clock reset that we don't know about lol.

Another delivery scheduled for tonight and tomorrow. Just drove by Goethals; there are cars staged in the oversized lot waiting for the move tonight to SBK

On 5/30/2023 at 12:28 PM, Michael J Q Last Bus said:

Anyone know or have the R211 schedule??

The preferred schedule as according to the G.O. was posted back in March when the train entered revenue test service. Go back a couple dozen pages and you'll find it.

On 5/20/2023 at 8:12 PM, Vulturious said:

Just from the thumbnail alone, I feel like the door indicators lighting up and the "<--> DOORS OPEN" should've been clear warning there's something wrong, almost like it was foreshadowing door malfunctions which that did happen. Even in the video, the indicators lit up on the wrong side of the train. There was also a video of the R211 making next stop announcements when in leaving the station.

Can confirm that they undid this update. Probably still working on the software.

4 hours ago, Lawrence St said:

I just noticed, the R211’s have a somewhat newer version of the R110A propulsion!

ehh, they sound nothing alike. 1996 Tube Stock sounds more like the 211 than the 110A.