Cyril, I like your approach, but two comment/questions. Has anyone ever done this ? BC of course. Does it really make sense to you that any one SP&S or DSS&A or BAR or FEC car would be as likelto get

Here's another note of discord. Photos are also biased evidence. You can’t tell which are equipped box cars. To give one example of the bias introduced, consider auto parts cars. These were assigned t

Posted by: "Kurt Laughlin" Has anyone heard of or tried to see if present-day mixed freights follow the same distributions as presumed for the steam era? There are no doubt differences today, but don'

starting place based on data other than their own opinion, and frankly, I'd rather take my chances with the data ;^) Did you read my post about a distance based algorithm. Selecting the weighting fact

It has been stated that the burden of proof is on me that box cars were not distributed on all railroads in proportion to ownership. The burden of proof notion is not applicable here because it is not

It would appear that we are headed down the road of confusing average and mean. Which are totally different. Given 10,000 freight cars past a given point, the average will most likely mimic the nation

Steve Lucas writes: "Tony-- After reading this thread for some time, I have to agree with your basic premise. Most major through transcon routes such as the UP in Wyoming would very likely have over a

Posted by: "John Stokes" >This is the other factor in this essentially impossible and largely meaningless exercise in trying to figure out how many cars of each type would typically be seen on a train

I believe that the random variables in this situation are the boxcar counts for each railroad. ================ The box car ownership counts themselves are highly biased. A significant percentage of t

Posted by: "Gene Green" bierglaeser@... bierglaeser Sun Aug 17, 2008 8:07 am (PDT) --- In STMFC@yahoogroups. com, Anthony Thompson <thompson@.. .> wrote: I'm well aware of the mean-mode-median t

Posted by: "Bill McCoy" Diversions could be filed by the beneficial owner of the car's lading as shown on the Bill of Lading and reflected on the Waybill that accompanied the car. Up to 3 diversions c

Tony said ========================= I'm OK with the average as the core datum, but recognizing that the average in the car distribution case may be at one side of a skewed distribution orm otherwise n

Well Mike, knowing that I'm one of the former jailees that you've mentioned, maybe a grace period of one digest would be in order. This list has unreasonable volume to get individual messages. Malcolm

Mike Brock said a month and a half. What I was trying to say is that during this period of time, the number of appearances by SP box cars is about 2.6 times what the theory predicts.” ----------------

There have been a few comments on this topic in regard to waybills and how do we get randomness so that there is the possibility, as Tim O mentioned for example, of having four SFRD reefers on the sam

Example: To protect their car supply, certain railroads subscribed to an interchange rule that mandated their empty cars could not be loaded on the return trip without their express consent. This was

========== I don't agree with this. I began nin operations in 1960. Given that for the next ten years we were trying to change what had been in effect for dozens of years, I can say that practices I o

I'd like to try to clarify the diversion thing a bit based on what I believe to have been the rules. The excerpt from Don Holbrook below is a nice summary of what happened. BTW, all that I've read so

FYI about this association. The Association of American Railroad Superintendents was a professional association of railroad operating department officials. It was mostly trainmaster, superintendents a

Quite true, Steve, but note that there is also an awareness that the rules can be applied and someone may notice. I doubt that was true for U.S. cars violating Rule 2. Canadian cars may well have been