How Railroad Crossings Work

How Railroad Crossings Work

Practical Engineering

5 месяцев назад

1,359,062 Просмотров

Ссылки и html тэги не поддерживаются


Комментарии:

@PracticalEngineeringChannel
@PracticalEngineeringChannel - 02.01.2024 18:39

Happy New Year! What other burning questions do you have about railroads?

Ответить
@cannibal_redneck7109
@cannibal_redneck7109 - 23.01.2024 19:36

My boyfriend is a dispatcher for UP so this video gave me a look into what he has to deal with 😂

Ответить
@jasonyambor3272
@jasonyambor3272 - 23.01.2024 07:30

Distant signal is another great channel!

Ответить
@jm5390
@jm5390 - 23.01.2024 07:08

As somebody who works indirectly with the railroad industry, I’m happy you mentioned the blue ENS signs since they’re a great source of contact information no matter what rail crossing you’re at. The metal bungalows also help if you can’t read the ENS sign.

Ответить
@nssigmtrretired6661
@nssigmtrretired6661 - 23.01.2024 04:38

My RR warning sign by my driveway has a + sign instead of an x and is made of cast iron.

Ответить
@teresaforsyth6185
@teresaforsyth6185 - 23.01.2024 01:19

Excellent!

Ответить
@MinorLG
@MinorLG - 22.01.2024 06:00

Even if it's that the gate arms are stuck down, often they can send a remote signal to reset the signal, and clear the crossing.

Ответить
@briannagoesbananas
@briannagoesbananas - 22.01.2024 00:18

I watched this video to learn more about level crossings for my train-obsessed 3 year old, so hearing that you have one too warmed my heart. And I learned so much!

Ответить
@Emily_M81
@Emily_M81 - 21.01.2024 23:58

I always love watching you explain stuff.

Ответить
@Track2u
@Track2u - 21.01.2024 23:36

Good generally explanation of level crossings .
Spent 41 years as a signalling tech support engineer.
I still think the stick circuit on a relay is a stroke of genius.
A rely held energised by its own contact .
This enables a rely to have a memory .
In other words a 0 or a 1.
Binary .
The basis of a computer and WW2 Collosus the code breaking computer

Ответить
@AbandonedMines11
@AbandonedMines11 - 21.01.2024 15:59

This was interesting and quite informative. Well done!

Ответить
@_RiseAgainst
@_RiseAgainst - 21.01.2024 06:55

So i know AI has trouble recognizing common images sometimes, but there are a few crossing bars that looks, from my peripherals, exactly like a person walking into the road. Gets me every time.

Ответить
@JohnSmith-zi9or
@JohnSmith-zi9or - 21.01.2024 06:37

My grandpa worked for the L&N. I love trains. I too went to college for civil engineering and took some railroad engineering classes. However, the Federal Railroad Administration did a huge disservice to Americans when they mandated blowing horns at EVERY at-grade crossing. They took into account the impact to the environment and wildlife more than they did the impact to human. Anyone who lives near a at-grade crossing knows how disturbing this is. It used to be if you heard the train blowing the horn something was wrong. Now they're always blowing and everyone is numb to it. It significantly harms peoples' health by disturbing sleep. This rule needs to change. Additionally, I think crossing gates and lights should alert sooner like they do in Europe. 20 seconds is just not enough time.

Ответить
@tanyasnaza8675
@tanyasnaza8675 - 20.01.2024 23:23

So if you get a metal pole and lay it on both of the tracks, it would set off the gates

Ответить
@Daniel-en1on
@Daniel-en1on - 20.01.2024 01:52

I always just think of the crossing coming into Killarney on the road from Cork.

Ответить
@klatubaradanikto
@klatubaradanikto - 20.01.2024 00:02

It can’t be this simple or I could cause a traffic jam with a roll of aluminum foil. I just watched a pickup truck with train wheels approach an intersection (on the tracks) & was dying to see if the lights would come on & the arms go down. They didn’t & the pickup had to wait it’s turn to cross the road on the tracks.

Ответить
@richdaley9982
@richdaley9982 - 19.01.2024 22:35

Excellent video! This channel is the best source for information I can tell my kids even though they don’t care. 😂 it should be required viewing for all dads.

Ответить
@bisurdaddy
@bisurdaddy - 19.01.2024 11:30

Working a construction project that paralleled a set of tracks that forced us to run our equipment on top of the rails. There was one crossing towards the end of the site and we figured out that we could activate the crossing by laying an aluminum ladder across the rails. We frustrated a lot of motorists during that job. Very interesting to see exactly why we were able to do it. Excellent video.

Ответить
@johnfox9169
@johnfox9169 - 19.01.2024 07:04

You're one excellent engineer!!

Ответить
@carterfackrell7771
@carterfackrell7771 - 19.01.2024 06:28

How do people not get electricuted if they walk on the tracks?

Ответить
@SolamenteVees
@SolamenteVees - 19.01.2024 05:14

I love when Engineering and Engineering intersect.

Ответить
@hotwheels_1993
@hotwheels_1993 - 18.01.2024 09:52

I remember my old job had a track that went right through our exit and the road. I've seen people break the arms and the crossing arms and bells stay on until the arm is fixed

Ответить
@alanofwales2583
@alanofwales2583 - 18.01.2024 04:51

Hi Grady, you mentioned the cross-buck as being the international RR Cross sign, though I don't recall seeing one in the UK or in The Netherlands.
Drivers there treat the crossing lights and gates as they do traffic lights - at least those who want to get home for dinner!
Thanks for the informative videos, as always!!

Ответить
@lindseys3708
@lindseys3708 - 18.01.2024 04:42

Makes me think of the time I was riding with my papa through central Texas countryside and we had to cross a track. Thing was beeping and going off, but there wasnt a train in sight, and you can see a LONG WAY in both directions out there. It makes perfect sense now that it was designed to fail safe and that was likely what happened. He waited there a good 5-10 minutes to be sure, but my mom still chewed him out for cheating across it when we got back 😅

Ответить
@dukeonwheels
@dukeonwheels - 17.01.2024 20:54

People in Florida pay attention. When the gate is down and the red lights are flashing, you are supposed to stop. Trains always have the right of way. A train always wins.

Ответить
@riccriccardoricc
@riccriccardoricc - 17.01.2024 17:31

How does this work in countries where the railways are electrified?
As far as I know, the tracks are already used for the return circuit powering the train since there's is only one overhead line. Wouldn't that break the short circuit? Or the island concept?

Ответить
@anthonytidey2005
@anthonytidey2005 - 17.01.2024 02:16

In the UK the relays for all sorts of railway safrty use, also have an extra following relay contacts use in a fail safe circuit's.

Thus if a relsy ontact welds together the saferty circuitvis relay aĺso still makes contactso the fail safe circuit is fails and ìs not safe so it turns the relevent protecting sigñals to red, also flagging a fault in the power signal box controllìng this line.

Power signal boxes are large mainly automated signal box covering a large area which replaçeing meny sìgnal boxes at statìons, ĺevel crossings (grade crossings) ect.

Ответить
@osrr6422
@osrr6422 - 17.01.2024 01:13

It would amaze you how many people run the gates anyway. Recently had one run a crossing so close to me the car disspeared from my view under the nose of the engine, how we didn't hit them, I don't know.

Ответить
@siamimam2109
@siamimam2109 - 16.01.2024 20:50

I THOUGHT there used multiple laser beams like garage doors use to sense obstacles

Ответить
@JudahWilliams-xt7qw
@JudahWilliams-xt7qw - 16.01.2024 10:47

what does the bell mean on a train

Ответить
@twerkingfish4029
@twerkingfish4029 - 16.01.2024 08:12

I walk across railroad tracks pretty much every day, and I had theorized while waiting for trains to pass, that the gates used the conductivity of the rails to trigger, and now I know.

Though it clearly is adaptive because a fast train sets off the signal before it is even visible, and a slow train doesn't.

Ответить
@garfixit
@garfixit - 16.01.2024 08:06

❤❤❤❤❤❤❤❤❤❤❤❤❤❤

Ответить
@eugenekilmer9407
@eugenekilmer9407 - 16.01.2024 04:09

I did not peruse all the 1,573 comments or any of their replies, so this point may have already been made, but the two long, one short, and one long blast of a train whistle corresponds to the letter "Q" in morse code (- - . -). The letter "Q" was chosen because that is what a third party sends when he wants to break into someone else's conversation. The logical deduction is that a train is warning that it about to break into the stream of traffic at an intersection.

I was in Canada one year when the patriotic bus driver declared that the "Q" meant "god save the queen." It does not, but I suppose he gets a B+ for his patriotism.

Ответить
@wargamz9051
@wargamz9051 - 15.01.2024 18:49

We have a crossing we go over that requires a tone through the locomotive radio to activate and deactivate. Based on this video, I assume it's to do with the fact that it goes right through a busy intersection, and the track is too short to support 2 approach circuits and an island.

Ответить
@salag13
@salag13 - 15.01.2024 16:15

In Europe, it's normal to wait several minutes at a crossing before the train comes.

Ответить
@joeanderson9852
@joeanderson9852 - 15.01.2024 07:03

👍👍

Ответить
@MattTheUPRailfan2006
@MattTheUPRailfan2006 - 15.01.2024 06:39

As a railfan, everything about railroad crossing in this video is true😮!!!

Ответить
@user-jm5gk5wc5q
@user-jm5gk5wc5q - 15.01.2024 05:42

The NTSB said the operator knew the snow removal machine was on the tracks for a training exercise, but wasn't sure where.

The operator received a stop command from the CTA's signal system because of the snow removal machine being more than 2,000 feet ahead.

Moments later, the driver saw the machine and initiated the emergency brakes, but the train still crashed into the machine, going 27 miles-an-hour.

Its speed had decreased from 55 mph.

Ответить
@sbingr5313
@sbingr5313 - 15.01.2024 03:51

Danny has great videos

Ответить
@sharkonland1104
@sharkonland1104 - 14.01.2024 23:43

Can you do an video on catch basins and oil and grit storm septors?

Ответить
@marscaleb
@marscaleb - 14.01.2024 18:42

I'm rather disappointed with this video. You had about three minutes of content and twelve minutes of filler. Your videos are normally packed with explanations and demonstrations, and your models usually do so much to show and explain things. But today, honestly your graphic did a better job at explaining than your model, and then all the interesting details of how the more complicated things work were skipped in favor of focusing on the child-level explanations.
This video was far beneath your usual level of content.

Ответить
@zyntolaz
@zyntolaz - 14.01.2024 06:10

Nice video. But you left out what happens at a dual track crossing, when you have two trains coming from opposite directions, and how does the equipment deconflict that information to keep the gate down while both trains are passing.

Ответить
@michaelbankston7430
@michaelbankston7430 - 14.01.2024 03:23

In Europe, crossing guards operate the gates at railroad crossings - if I'm correct.

Ответить
@jwesby65
@jwesby65 - 13.01.2024 19:26

I hate when a train stops than backs up

Ответить
@jwesby65
@jwesby65 - 13.01.2024 19:15

And yet people try to beat the train and sometimes the train wins.

Ответить
@MediumApproachSlow
@MediumApproachSlow - 13.01.2024 18:34

We're all just watching this video for your scale models we know a good bit about this stuff

Ответить