[PRCo] Fwd: METRORAIL DISASTER
Schneider Fred
fwschneider at comcast.net
Tue Jun 23 11:22:04 EDT 2009
Saw Herb Brannon on some of the lists. Here is a comment Herb that
I added to another list this morning. The rest of you on the PRC
list can read what the Grizzly Bear thinks; you can decided whether
I'm right or wrong. Apparently there is some information floating
around that the accident was caused my malfunctioning computer control.
Fred Schneider
Begin forwarded message:
> From: Schneider Fred <fwschneider at comcast.net>
> Date: June 23, 2009 11:19:25 AM EDT
> To: "alschneider2 at juno.com" <alschneider2 at juno.com>
> Cc: Swindler1 John <j_swindler at hotmail.com>, Vigrass Bill
> <billvigrass at verizon.net>, Bob Dietrich
> <bob.dietrich1 at verizon.net>, Bente Bruce <bbente at bellsouth.net>,
> Lybarger Ed <trams2 at comcast.net>, Craig Phil
> <philgcraig204 at yahoo.com>, Allman Rich <allmanr at verizon.net>,
> Jackson Russ <rejmhj at netzero.net>, Brashear Derrick
> <shadow at dementia.org>, Fitzherbert Tony <akftrain at aol.com>,
> Tennyson Ed <etennyson at cox.net>, Miklos Frank
> <miklosfrank at comcast.net>, May Jack <jack.may at americomm.net>, JOHN
> AURELIUS <jaurelius at centurytel.net>, "Russell Jackson E."
> <russell.jackson at stvinc.com>, Kotulak Dick <CRVLKOTULA at aol.com>
> Subject: Re: METRORAIL DISASTER
>
> I was a little disturbed today to hear to NTSB spokesman give her
> preliminiary belief that the wreck was caused by old cars. I
> cannot help but remember all those wooden elevated cars from the
> turn of the century that CTA was still running after World War
> II. Or all the 1912 Nearsides that PTC still had on the streets
> in 1955. Or how about the 1906 Market Street Elevated cars that
> were finally replaced in 1960 by the Budd Almond Joy cars.
>
> I guess even if the "motorperson" was not guilty, I would want to
> blame the industry standard today that defers maintenance until the
> car is so beat that we can go to the federal government and get
> capital money to restore it to safe operating condition. It think
> John Swindler's line supporting that was, "The only real money is
> local money." We'll do anything to avoid spending local money.
>
> I am trying to remember back to some discussions I heard during the
> construction of the original Rohr cars ... such as here are the
> tunnel dimensions ... can you build a car to fit. It related to
> cost of tunneling is proportional to cross sectional area times
> distance and if we can make the cars more compact in cross section,
> we can make the tunnel costs cheaper. Does that compromise the
> structure of the car? That is for some one else to answer.
>
> The real question is why did it happen and I cannot accept simply
> that the cars are older. If that is so, then how is it that the
> Strasburg can run steam engines built over 80 years ago pulling
> wooden coaches that were built 100 years ago? And how was the
> Pennsylvania Railroad able to run L1s and K4s in 1957 that were 43
> years old? I think someone from the NTSB needs a muzzle.
>
>
> On Jun 23, 2009, at 2:06 AM, alschneider2 at juno.com wrote:
>
>> Six are known dead, there are reports of a seventh trapped in the
>> wreckage. 70 were taken to various hospitals, with a few being in
>> critical condition; according to the press, some may not make it.
>>
>> I have read that the NTSB wanted the Rohrs retired or at least
>> strengthened; the Bredas were strengthened but not the Rohrs. Mr.
>> Catoe has not proposed doing anything, at least publicly. The
>> 1000's are also suffering fatigue, with early stages of cracking.
>> They must be replaced according to press reports by 2020 or so.
>> There next equipment order, the 7000's, are for the Dulles
>> extension - Metro informally calls them the Virginia cars. Only
>> after that car order will Metro order cars for general fleet
>> expansion and/or replacement of the 1000's.
>>
>> This is reportedly the third collision with Rohrs overriding other
>> cars.
>>
>> There are three levels of automation:
>>
>> 1. Automatic train protection - this is always in operation and
>> appears to have not functioned properly.
>>
>> 2. Automatic train control - the computer drives the train, not
>> the operator. Normally Metro operates in this mode, but not
>> always. The Shady Grove collision and fatality was due to poor
>> braking during a snow storm; the operator requested permission to
>> operate manually, was not permitted to do so, and died as a
>> result. The rail operating manager had ordered 100% automatic
>> operation to save money on break pads. He left the authority not
>> long after the fatality.
>>
>> 3. Computer train scheduling (I've forgotten the technical term
>> for this) - the computer increases or decreases speed to keep
>> trains on schedule. This has never been implemented.
>>
>> I do not consider myself an expert on either Metro or transit, but
>> I think the above is true.
>>
>>
>>
>> Alan
>>
>>
>>
>>
>>
>> ____________________________________________________________
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>
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