G
g. moore
Guest
Couldn't a passenger on the amtrack that crashed in phily @109 mph have stopped the train if he had a gps unit and knew that paticular sharp corner had a limit of 50 mph and they were going way too fast?
While *possible*, the odds of a plain, accidental mechanical fault are very low. If there's anything which is designed to be redundant and failsafe on trains, it's braking.It may "appear" he wasn't attentive, but it's possible other factors (medical, mechanical, or whatever) could be involved.
Yes, it would still receive the coded track circuit cab signal aspect, and that would have been clear, as it typically would get a clear at Shore. So that would be no good for slowing it down at all. Potentially things could be setup so that the highest aspect received from that signal is either Approach Medium (45) or Cab Speed 60 (60) which would cause those signal speeds to be enforced. Similarly anything from North Philadelphia onwards potentially could enforce Cab Speed 80 or Cab Speed 100. But apparently that is not the way things are set up.If that segment of track around Frankford Junction and Shore Interlocking wasn't equipped with ACSES, wouldn't the cab still receive a Signal Speed Display (Instead of a Track Speed Display, which is active when ACSES is Cut-In), and thereby trigger a Penalty Brake Application if an Overspeed Condition wasn't corrected? Or am I mixing the systems up?
As usual garbage in garbage out nonsense. If an Engineer cuts out PTC without instructions from the dispatcher (typically happens to work around failure of the PTC equipment) then said Engineer can start looking for a job outside the rail industry. Such safety violations are not treated cavalierly. This may be an unfamiliar concept in the cavalier newsrooms of the media, and thus rather difficult to comprehend. They can carry on bullshitting all day based primarily on lack of knowledge and get promoted for doing so.This "expert" Michael-something on MSNBC was talking about how the PTC system can be Cut-in and Out by the Engineer when they need to "make up time," which is absolute ludicrous. A malfunction is one thing, but to make up time? Come on...
If I had to bet, this is what I'd bet on as well. All those northern Phildelphia suburbs look alike to me anyway...This is beginning to sound like a gross lack of situational awareness by the engineer. In english, the engineer may have lost track of where he or she was. If he mistook the 2nd Street curve at MP 81 (prior to the accident scene) for the second Frankford Junction curve at MP 84, he may have thought he had cleared the speed-restricted area and was entering the 110mph territory. The two curves are similar in geometry, and it was night. If that happened, he may have accelerated off the MP 81 curve to nearly 110mph only have Frankford Junction appear by surprise three miles later. I can't think of another scenario which would have a train come into Frankford Junction at over 100mph other than the engineer thinking he was in 110mph territory.
Impossible? I would have thought it was impossible for a trained NEC crew to take a train with passengers up the wrong railroad for two miles, and then upon reaching the end of the track, call the dispatcher to say they were lost. It happened.
IDK about on the NEC, but train crews on the Wolverine call out the signals, speed changes, etc.If I had to bet, this is what I'd bet on as well. All those northern Phildelphia suburbs look alike to me anyway...This is beginning to sound like a gross lack of situational awareness by the engineer. In english, the engineer may have lost track of where he or she was. If he mistook the 2nd Street curve at MP 81 (prior to the accident scene) for the second Frankford Junction curve at MP 84, he may have thought he had cleared the speed-restricted area and was entering the 110mph territory. The two curves are similar in geometry, and it was night. If that happened, he may have accelerated off the MP 81 curve to nearly 110mph only have Frankford Junction appear by surprise three miles later. I can't think of another scenario which would have a train come into Frankford Junction at over 100mph other than the engineer thinking he was in 110mph territory.
Impossible? I would have thought it was impossible for a trained NEC crew to take a train with passengers up the wrong railroad for two miles, and then upon reaching the end of the track, call the dispatcher to say they were lost. It happened.
...more reason to implement PTC. Although CSX's practice of having the engineer and conductor call every signal and every indicator board verbally might help maintain situational awareness. I've noticed that Amtrak doesn't do that.
This is what was done at Elizabeth after someone blew through there at a high rate of speed, right?Potentially things could be setup so that the highest aspect received from that signal is either Approach Medium (45) or Cab Speed 60 (60) which would cause those signal speeds to be enforced.
No there aren't.What is surprising is that there are two people in an Amtrak locomotive cab
There's..only one person in the cab. The engineer. There should never ever be two people in the cab, unless one is a trainee, or someone qualifying on the route.Lots of theories and no conclusive evidence yet except for the 106 MPH speed of the train. With all of the fail safe measures on an Amtrak locomotive (especially a new one like the one in the crash) everything points to human error. What is surprising is that there are two people in an Amtrak locomotive cab and both apparently didn't notice that the train was going unusually fast heading into an area with a known curve? The engineer is not saying anything so the NTSB needs to question the conductor (they probably already have) but with two black box recorders and a video system, they know exactly what happened.
They definitely don't on the Empire Corridor south of Albany. They were very laconic last time I was on the NEC, too. I'm told that in many places train crews only call "less than clear" indications. On CSX, at least in New York, they call every "clear" as well.IDK about on the NEC, but train crews on the Wolverine call out the signals, speed changes, etc.If I had to bet, this is what I'd bet on as well. All those northern Phildelphia suburbs look alike to me anyway...This is beginning to sound like a gross lack of situational awareness by the engineer. In english, the engineer may have lost track of where he or she was. If he mistook the 2nd Street curve at MP 81 (prior to the accident scene) for the second Frankford Junction curve at MP 84, he may have thought he had cleared the speed-restricted area and was entering the 110mph territory. The two curves are similar in geometry, and it was night. If that happened, he may have accelerated off the MP 81 curve to nearly 110mph only have Frankford Junction appear by surprise three miles later. I can't think of another scenario which would have a train come into Frankford Junction at over 100mph other than the engineer thinking he was in 110mph territory.
Impossible? I would have thought it was impossible for a trained NEC crew to take a train with passengers up the wrong railroad for two miles, and then upon reaching the end of the track, call the dispatcher to say they were lost. It happened.
...more reason to implement PTC. Although CSX's practice of having the engineer and conductor call every signal and every indicator board verbally might help maintain situational awareness. I've noticed that Amtrak doesn't do that.
peter
Never is not necessarily the right wording. Railroads used to require two people upfront, and if in a curcumstance where the engineer might become unconscious or unable to control the train, there is someone who could more or less have the ability to stop the train.There's..only one person in the cab. The engineer. There should never ever be two people in the cab, unless one is a trainee, or someone qualifying on the route.Lots of theories and no conclusive evidence yet except for the 106 MPH speed of the train. With all of the fail safe measures on an Amtrak locomotive (especially a new one like the one in the crash) everything points to human error. What is surprising is that there are two people in an Amtrak locomotive cab and both apparently didn't notice that the train was going unusually fast heading into an area with a known curve? The engineer is not saying anything so the NTSB needs to question the conductor (they probably already have) but with two black box recorders and a video system, they know exactly what happened.
I don't seem to remember Congress telling Amtrak, that Amtrak isn't spending enough money, and offering to give Amtrak all the money it wants/needs to completely upgrade every inch of track throughout the Northeast corridor. Do you? :unsure:Despite pressure from Congress and safety regulators, Amtrak had not installed along that section of track Positive Train Control, a technology that uses GPS, wireless radio and computers to prevent trains from going over the speed limit. Most of Amtrak's Northeast Corridor is equipped with Positive Train Control.
The conductor is reportedly hospitalized with a fractured skull. So he may not be in any condition to answer questions for a while.The engineer is not saying anything so the NTSB needs to question the conductor (they probably already have) but with two black box recorders and a video system, they know exactly what happened.
I had not heard this yet, but certainly seems possible.getting oddball reports from news sites....
2 children crushed to death and a female passenger was decapped???
any confirmation on this?
Hochlightner
Please carefully re-read this and edit it to say what you really meant. As it reads now (and i'm fairly literate) you're saying the railroads will put two people in the cab when they think one might pass out? My thinking is if they think one will pass out, why put him/her in the cab to begin with!. . .if in a curcumstance where the engineer might become unconscious or unable to control the train, there is someone who could more or less have the ability to stop the train.
No signals are called out on the NEC, since signal speed enforcement is already in place all over. There is nothing to be gained by calling out signals. It would have made no difference in this accident, since the signal that he passed was in all likelihood Clear since the cab signal system did not enforce any more restrictive aspect. Anyway that will all be pretty clear from the event recorder. We just need to wait for the NTSB's findings.IDK about on the NEC, but train crews on the Wolverine call out the signals, speed changes, etc.
peter
These new engines have no additional fail safe mechanisms beyond what the AEM-7s and HHP-8s and Acelas have.With all of the fail safe measures on an Amtrak locomotive (especially a new one like the one in the crash)
On the NEC there is only one person in the cab (normally)What is surprising is that there are two people in an Amtrak locomotive cab
I have a friend who's worked for CSX for years, as a conductor but now in management. He could have been an engineer but didn't want that position because of the likelihood of hitting pedestrians or vehicles that should not be on the tracks. Engineers can lose their jobs if they run over the speed limit even a few miles per hour, and so they make every effort not to do so. They cannot speed to "make up time" and would not choose to do so.Exactly who in the world else would have ANYTHING at all to do with the speed of the train other than the sole occupant of the cab, the engineer? All this 'don't jump to conclusions' nonsense has surpassed the level of ludicrousness. There was no track speed greater than 80 MPH from PHL to the site of the accident...he'd already stepped in it when he hit 90 (10 over is decertifiable under FRA). To say, 'well, maybe he thought he was further down the line' makes the assumption that he didn't know where he was.There's no sense blaming the engineer for anything unless facts emerge that prove he had something to do with the speed. While possible (even probable) there are other explanations.
Let's take off the kid gloves and call a spade a spade. This guy stepped in it - big time. I've heard all the other bs as well....'he's a nice guy' is the other excuse people seem to be using. Railroading is not (and never should be) a popularity contest. Do your job safely and and go home, do it again tomorrow....but making excuses for this kind of disaster is pound foolish.
I stand corrected. But I did say I was only fairly literate, didn't I?No, he's saying there used to be two people up front all the time.
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