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» RAILforum » Passenger Trains » Amtrak » Metrolink head-on crash in Chatsworth (Page 0)

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Author Topic: Metrolink head-on crash in Chatsworth
Ira Slotkin
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The Ungrammatical Poet

The quality of a piece of prose
May be measured by knowledge the author shows
About leaving infinitives to split and dribble,
Or the indefatigable participle.
Proper phrases, e.g. those adverbial,
Prove to be a problem proverbial;
Profuse punctuation (and alliteration)
Prompt problems in a recitation;
I have no doubt the subjective conjunction
Plays some significant rhetorical function;
Where to insert a semicolon
Has suffered the spirit of many a solon;
The dash – as distinguished from the hyphen –
Ante- and pre- cedes a phrase to enlighten,
Rather than splitting or joining two words
Which would otherwise flee, each free as a bird.

‘Tis a burden in prose or in poems to be using
Good grammar’s rules, they can be quite confusing.
Although I concede: grammar that’s watched
Is grammar well read, grammar top notched;
Follow the rules and what one has to say
Will gracefully rise like smoke o’er the fray.
Still, I gratefully sighs ‘cause poetic license
Exempts me from any grammatical crisis.
I hope those whom my errors have thusly abused
Are moved, or are touched, or dare I hope amused?
Then I’ll not be chastised for guidelines discarded.
Please attribute to anarchist views (held whole-hearted)
My pattern and practice - and possibly worse -
Of pitiful grammar, but pithful verse.

Ira

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Railroad Bob
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Good to see you back posting, Mr. Slotkin! Somewhere in the place where famous deceased wordsmiths go, Eddie Poe is smiling down on you in his macabre sort of way...must be that Halloween is drawing nigh. We needed a break from the somber Chatsworth wreck thread, anyway!
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Geoff Mayo
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quote:
Originally posted by zephyr:
But whether it be photography, or whatever path you choose to pursue, improving your grammatical skills will only make your vocational skills more effective.

Agreed. I regularly interview candidates for jobs in my company. Any CV [resume] that contains a number of grammatical errors shows a lack of care and those CVs go straight into the recycling container. While this forum isn't anywhere near as important as applying for a job, you'd be surprised at how many recruiters these days do some private investigation of their potential candidates - and that means potentially finding posts on forums which could alter their view of a candidate.

quote:
Originally posted by zephyr:
I guess what I'm trying to say is it's like a drunk's friends. Though most "friends" might buy him the next one, the "best" friend might say "Hey, Dude, give your liver a break."

Wow, that's deep. I might use it myself except I wouldn't fit into the "best" friend category!

Geoff M.

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Geoff M.

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Geoff Mayo
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quote:
Originally posted by JONATHON:
or was he incopasatated?

Incapacitated is one possible reason why nobody should be pointing fingers without fact. I believe they can tell a surprising amount from the autopsy and either rule in or rule out the possibility of involuntary incapacitation on the part of Mr. Sanchez.

Geoff M.

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Geoff M.

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Mr. Toy
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ZING! Zephyr got me, and I take a bite of humble pie. As one who makes efforts to make sure the meaning of my written words are clear, I made a huge boo-boo. Even in areas where one is generally competent, we are all subject to the stupid move now and then. Unfortunately, the same may apply to engineers and other persons responsible for public safety, so some sort of redundancy is in order, either in the form of automated back-up systems, or adopting the FAA rule of a second pair of eyes in the cockpit.

Hundreds of lives shouldn't rely on an engineer never making a mistake.

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Henry Kisor
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Geoff M is absolutely correct about employment candidates being subject to checking-out on the Internet. Before I retired from my editorial job, I found myself Googling everyone who proposed to write a piece for my bailiwick. On a number of occasions certain derogatory information turned up.

Young folks need to take this to heart before posting anything on Facebook or MySpace.

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Gilbert B Norman
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Off topic, but I guess some of us must accept, difficult as it may be, that this is how young persons communicate with one another:

http://www.nytimes.com/2008/09/29/technology/29drill.html

Speaking for myself, my current cell phone, an LG marketed by Verizon, is reasonably "loaded out' and probably can support text messages. I know it can support video as somehow in my pocket some combination of buttons got hit and darned if there isn't some kind of image, namely of what was around, displayed on the screen (if somehow SND got pushed, I'd be in debtor's prison). While during my "56 postings and poetry" joyride last July I made about a dozen calls as well as maybe four when out East for the wedding, "that's it' for cell phone use since June after returning from the trip that had me "hooking up" with Mr. and Mrs. Train Lady.

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TwinStarRocket
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It has recently become apparent that skill in forming coherent and well constructed sentences is not even, in the opinion of some, a requirement for running the country.
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Railroad Bob
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quote:
Originally posted by TwinStarRocket:
It has recently become apparent that skill in forming coherent and well constructed sentences is not even, in the opinion of some, a requirement for running the country.

But TSR, I still think we should build more nucular power plants.
Or is that spelled/pronounced "nuclear?" (-: I'm the decider here...

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TwinStarRocket
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Bob, I was thinking more of potential deciders such as Tina Fey.
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RR4me
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Holy moly, or is that wholey moley? Has this thread proven knot theory?
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JONATHON
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Thanx Mr.Toy, as for my theory, thats out the window, today they anounced the tex was sent only 22 seconds before the crash, they didnt say if that was the time it was sent or receieved, just that it was 22 seconds before the crash

--------------------
JONATHON D. ORTIZ

My MySpace

CoastStarlight@Gmail.com

Amtrak Pages WebSite

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Henry Kisor
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Even more off topic, iPhone users may be delighted to know about this:

http://iphonetoolbox.com/webapp/amtrak-iphone/

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Henry Kisor
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It seems as if some posters look askance at text-messaging, as if it's solely an obsession of careless youth.

For the deaf and hard of hearing who cannot use voice cell phones, texting is a lifesaver and an instrument of liberation.

A deaf Amtrak passenger at a sizable urban station, for instance, can use texting to call a taxi by texting to a a wireless relay service, which will relay the call to a taxi company.

Deaf pilots can use texting to obtain weather conditions at airports where they plan to land. (Believe me, it's not easy when thermals and gusts are tossing the aircraft like a salad.)

Deaf husbands can use texting to call their wives from cocktail lounges and tell them they're working late at the office.

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MDRR
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To take this somewhat back on topic, Both Amtrak (at least NEC), and Metro North put out a bulletin order yesterday prohibiting operating crews from using cell phones while on duty. I didn't see the exact wording but I assume with limited exceptions...
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Judy McFarland
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Mr Kisor: thank you for your info on texting for the deaf. I hadn't thought of that advantage for some.

--------------------
My new "default" station (EKH) has no baggage service or QuikTrak machine, but the parking is free! And the NY Central RR Museum is just across the tracks (but not open at Amtrak train times. . ..)

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amtraxmaniac
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Texting is not soley an obsession of careless youth at all. It is actually cheaper to send a text than to make a peak-time call on most plans. It also allows DISCRETION when communicating. Its not just teenagers that require such discetion.

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Patrick

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Henry Kisor
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Amtraxmaniac, you are so right about discretion while texting. Two years ago, a Miss Deaf Texas was killed by a freight train while walking along tracks rapt in her text messager.

Texting while driving is even stupider than cell phoning while driving. But people who should know better do it anyway.

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Floridian
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The NTSB update posted on the other thread stated the engineer was working a split shift. What effect, if any, could that have had in contributing to the accident?

Also, is split shift scheduling commonplace (industry-wide - not just Metrolink)for engineers?

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Gilbert B Norman
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"Split shifts" are quite commonplace in railroad, freight and passenger, service, Ms. Floridian. The Hours of Service Law permits such provided the break in service ("respite" in real railroadese) is not less than four hours and "suitable lodging" is provided for the break. In which case, the "respite" is a "time-out'; allowing the statutory "twelve hours" of service to be considerably extended. Example: an Engineer reports for duty a 6AM; he operates a train until 1130A at which time he is directed to go off duty (and provided "suitable lodging") and return to duty at 4PM. He then operates a train until 9PM. Overall time on duty 15hours, less 4.5hr 'respite'. Time 'at the throttle' 10.5hr, or "legal" under Hours of Service.
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Floridian
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GBN - Thanks for the explanation. I was worried that he had to go home between shifts.
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The Chief
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Well I don't think Norman should kick Jonathon, regardless of his spelling.

And BTW the NYTimes no longer is the newspaper of record in the U.S. It has fallen, like most dailies (18 out of the Top 20), as circulation spirals downward, and objectivity disappears, and that ultra-liberal bent manifests itself in the NYT news columns.
"The Gray Lady?" I think not. Try "The Dead Lady."
And besides, it doesn't even have comics.

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_ _ __ _ _ ŤĦę ĊĦĪĘҒ
_|_|_|_|_|

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City of Miami
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I have another question: What is CP Topanga anyway? Is it the switch where there's a crossover to the siding? Why is it called Topanga and others 40 or 50, etc. Is that name of an intersecting street? What does CP stand for?
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George Harris
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Check this one out:
www.latimes.com/news/printedition/california/la-me-traincrash4-2008oct04,0,6537656.story

Three people that should know what they were looking at say they saw the signal and it was green.

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George Harris
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quote:
Originally posted by City of Miami:
I have another question: What is CP Topanga anyway? Is it the switch where there's a crossover to the siding? Why is it called Topanga and others 40 or 50, etc. Is that name of an intersecting street? What does CP stand for?

CP Topanga is the switch at the west (compass north) end of the siding. "CP" means "Control Point"

Way back on the first page of this thread:

Here is the situation of the area, listed in the direction of the Metrolink train:

446.8 CP DeSoto, east end siding
445.5 Chatsworth Station
444.4 CP Topanga, west end siding
444.0 east portal Tunnel No. 28
443.9 west portal Tunnel No. 28 (tunnel 537 feet long)

Allowed Speeds
Freight: 40 mph throughout the area. (60 mph west of 437.7)
Passenger:
50 mph – 440.9-442.6
40 mph – 442.6-444.5
70 mph – 444.5-453.1
Moving through turnouts at CP's DeSoto and Topanga and on the siding between those points, 45P/40F

Note: Even though the railroad direction is westbound for the train, the orientation of the track through Chatsworth station and the CP DeSoto to CP Topanga siding is almost exactly south to north, so there is no "sun in his eyes" possible.

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City of Miami
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Thanks, George. Is 'CP' railroadese for switch? I deduced from your post on the first page of this thread that CP designated the ends of the siding so must be the switches. Where do the names come from, i.e. DeSoto/Topanga, just out of curiosity. 'Control Point' - that's what I totally didn't know and couldn't find and google didn't help me out for once!
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cubzo
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Topanga is the name of an indian tribe that used to live in the area. and I would guess Desoto comes from the explorer.
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Geoff Mayo
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quote:
Originally posted by George Harris:
Three people that should know what they were looking at say they saw the signal and it was green.

According to reports here and elsewhere, the last two signals were not called out. There is a signal at CP DeSoto, an intermediate one before Chatsworth, and the end-of-siding one at CP Topanga. The one at CP DeSoto apparently shows flashing yellow if the Topanga signal is red; the intermediate one showing steady yellow. This makes sense with the linespeeds and stopping distances quoted. Have there been any reports of whether or what aspect was called for the DeSoto signal? If it was called as green then the Metrolink had some sort of proceed aspect at Topanga; if it was called as flashing yellow then he didn't.

If the Topanga signal was showing a false proceed aspect then it doesn't matter what the data loggers in the interlocking show, as they only report what they commanded the signal to do, not what it actually did. Depending on the installation, one loose wire between the interlocking and the lamps themselves could be all it needs to false-feed the DR (green) aspect. This is what happened at Clapham (UK, late 1980s) which resulted in all new installations needing double-cutting of relays to help prevent stray wires false-feeding vital contacts.

Geoff M.

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Geoff M.

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dnsommer
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Shouldn't this entire thread belong in the commuter rail forum?

Dave S.

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I believe in something. I believe I'll take the train.

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rresor
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To Geoff M:

With due respect, I think US signal systems are a bit more sophisticated than those in Britain, and it would take more than one loose wire to produce a false clear. Also, the signal at CP Topanga is an "absolute" (home) signal whose normal (default) display would be red. If it were green continuously, someone certainly would have noticed.

For the record, the engineer did call the signal at CP DeSoto as "advance approach" (flashing yellow), as I understand it. The next signal, just before the Chatsworth stop, would have displayed solid yellow (approach). It is almost inconceivable to me that the home signal at CP Topanga could have displayed clear in these circumstances.

In any case, all commands sent to, and responses received from, the field are logged. Again, the default indication would have been "stop". The dispatcher reversed the switch and then cleared the signal for the eastbound freight into the siding. That would have required the signal governing a westbound move on the main track to be red. As I understand it, tests by NTSB confirmed everything was in order. No loose wires.

A false clear is possible on an intermediate (automatic) signal if the track circuit doesn't shunt properly. On a home signal, it's literally impossible unless the signal is wired incorrectly -- and NTSB's tests would have uncovered that.

A bigger question, to me, is why engineer Sanchez took no action. If he was alert, he should have seen the red signal and also the freight, in time to initiate emergency braking. If he was incapacitated, in the time it took for the train to travel from the Chatsworth stop to the collision, the "alertor" in the cab should have stopped the train (they require a response every 30 seconds or so, and I understand it took 80 seconds from departure Chatsworth to the accident).

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smitty195
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quote:
Originally posted by dnsommer:
Shouldn't this entire thread belong in the commuter rail forum?

Dave S.

LOL!!
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Geoff Mayo
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quote:
Originally posted by rresor:
To Geoff M:

With due respect, I think US signal systems are a bit more sophisticated than those in Britain, and it would take more than one loose wire to produce a false clear. Also, the signal at CP Topanga is an "absolute" (home) signal whose normal (default) display would be red. If it were green continuously, someone certainly would have noticed.

I think we'll have to agree to disagree on which is more sophisticated! As I said before, we require double cutting which means it takes TWO loose wires doing the same false feed in order to get a wrong side failure. Double cutting in this instance means both the positive and return wires both being put through relay contacts, compared to your traditional method of just switching either one or the other, usually the positive.

All I was trying to do was explain how, if the onlookers were correct, a green could have been shown whilst the data loggers recorded a red being commanded. If the engineer did call an advance approach then that sounds like the signal *should* have been red.

I don't have the typical US signalling circuits with me at the moment but I agree that with your statements about false indications being "literally impossible". FWIW, US signalling circuits are very similar to UK circuits in the foundation levels, even using the same relay contact names. Where they sometimes differ is that of aspect control. That one possibility is as I stated above - far beyond the reach of data loggers as it's the final link between interlocking and signal lamps. An unlikely scenario but one which has happened before. And I'm not theorising that this is what happened here; just trying to explain one possible reason IF the onlookers were correct in their statements that the signal was green.

Geoff M.

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Geoff M.

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Geoff Mayo
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quote:
Originally posted by smitty195:
quote:
Originally posted by dnsommer:
Shouldn't this entire thread belong in the commuter rail forum?

Dave S.

LOL!!
The other forums are rarely used. Personally I think TrainWeb should amalgamate some of the forums - but that's another story.

Geoff M.

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Geoff M.

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RRRICH
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Yeah, Geoff -- they should call this forum "AMTRAK/VIA/Commuter/International/Tourist Trains/Bagpipes/Passenger Trains"
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Henry Kisor
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It does not seem unreasonable to me that the Metrolink crash is being discussed in the Amtrak forum. After all, an important consequence of the accident is that it gave considerable impetus to the passage of the rail safety bill (which included Amtrak funding) in the Senate.
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TwinStarRocket
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RRRICH: Yeah, Geoff -- they should call this forum "AMTRAK/VIA/Commuter/International/Tourist Trains/Bagpipes/Passenger Trains"

You are forgetting ponies, punctuation and drum therapy.

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RRRICH
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Twin Star -- we are also forgetting "the use of quotation marks"......... (LOL)
Posts: 2428 | From: Grayling, MI | Registered: Mar 2002  |  IP: Logged | Report this post to a Moderator
Geoff Mayo
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Further to my earlier statement about false feeds causing false proceed aspects, I stumbled across this website today which lists a fair few of them. There are pages for each of 1996 to 2004 but no later for some reason. Some reports are due to sunlight, others due to wire degradation, still more due to wiring faults whether design or installation faults, and various other reasons.

http://www.ironwoodtech.com/researchcenter/falseproceeds/falseproceeds.htm

Geoff M.

{Edit to correct link)

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Geoff M.

Posts: 2426 | From: Apple Valley, CA | Registered: Sep 2000  |  IP: Logged | Report this post to a Moderator
George Harris
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Thanks for the link.

Funny, when a man goofs, the answer that everyone jumps on is an electrical or electronic babysitter. When the mechanical big brother goof up the answer that everyone jumps on is . . . another bigger and better electronic babysitter. Isn't the definition of insanity doing the same thing over and over and expecting different results?

Posts: 2975 | From: Olive Branch MS | Registered: Nov 2002  |  IP: Logged | Report this post to a Moderator
rresor
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With respect, Mr. Harris, Positive Train Control isn't just "a bigger and better babysitter". It's a totally different type of control philosophy than conventional block signals. Via the on-board computer, a dispatcher can authorize the train to proceed to a certain point and no farther. Back in the 1980s, Burlington Northern ran a PTC test for nearly three years in the Iron Range of Minnesota. As a test, an engineer was ordered to try to violate a movement authority. Under protest, as directed by a supervisor (with witnesses), he attempted to pass a red signal. The train was brought to a smooth "full service" stop by the computer. Further attempts by the engineer to release the brakes and move the train were futile.

The technology works just fine. It isn't absolutely, totally "fail safe" -- nothing is -- but it works a whole lot better than cab signals without any enforcement at all.

Posts: 614 | From: Merchantville, NJ. USA | Registered: Aug 2000  |  IP: Logged | Report this post to a Moderator
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