BaltACD I suspect pipelines, when they feel the need, increase either the size or pressures that the lines operate at.
I suspect pipelines, when they feel the need, increase either the size or pressures that the lines operate at.
Increasing the size of a pipeline is a rather expensive proposition as it involves digging up the old pipeline which is likely on a shared ROW. Pipelines as do railroads have problems with encroach on the ROW, though tends to be worse with pipelines as the pipes are usually out of sight.
IIRC, pipelines are typically limited to 60 to 70% of yield strength in rural areas and 50% in populated areas. There was work being on increasing allowable pressure, but the El Paso pipeline blast circa 2000 put an end to that effort. The PG&E pipeline blast would likely have rolled back the increase if it had gone through.
This subject is as hot as an EV battery fire...
Parts of PSR is, and always was, the way railroads did things. Other things not so much.
The "scheduled" part is not about train schedules. It's about scheduling cars, their trip plans and connections within the network. When we first got deep into PSR, they came out and said we don't care about trains, only cars. (That kind of thinking fell by the wayside. Someone must have realized that cars move in trains.)
Another piece of PSR is to have the same number, and as few as possible, in each direction every day. Move cars that move in irregular unit trains into the manifest network as much as possible. Once "balance" has been achieved, reduce "excess" assets, mothball or retire equipment and facilities - furlough employees. Don't consider that external factors might upset the balance. Don't consider that new business opprotunities might come along.
After all that, then the PSR proponents say the railroads can pivot to growth. Some that have actually have started to regrow their business have had to spend money to rebuild what was cut or on additional capacity projects that had been shelved.
Jeff
BaltACD Ocean shipping has seen vessels move from the size of the Liberth ships that won WW II and formed the basis of the after war merchant shipping fleets of many seafaring countries.
The Great Lakes have seen that as well. There are a number of "footers" (1,000 feet and longer) and they are mainly constrained by the Soo Locks, which can only handle slightly over that. I believe the longest ship on the lakes right now is 1,014 feet.
Smaller ships are getting fewer and fewer.
Salties are limited to the ~700 feet that can be handled by the St Lawrence Seaway locks and the Welland Canal.
Larry Resident Microferroequinologist (at least at my house) Everyone goes home; Safety begins with you My Opinion. Standard Disclaimers Apply. No Expiration Date Come ride the rails with me! There's one thing about humility - the moment you think you've got it, you've lost it...
PennsyBoomerPerhaps the most recognized of the "short/fast" carriers was Rio Grande when 4000 tons made a train (on some routes) - but that was largely a function of geography and density. The natural low resistance of steel wheel on steel rail tends toward longer consists and with the advent of DPU locomotive consists greater train length has been made much more practicable. Every economy over the past, say, 40 years has significantly affected operating efficiency. Elimination of the caboose and crew consist reductions increased the amount of time necessary to inspect trains, fix mechanical problems and make set outs and pick ups. Yard capacity was affected by remote control crews slowing the processing of traffic, backing up onto the mainline, draining the crew base. The experiential base was basically disdained and discarded through buyouts so that now one wonders what is left. The days when just about any delay could be resolved within twenty minutes or so are long gone. Anyone remotely familiar with operations knew PSR was an oxymoron. There are just too many variables in a large-scale operation for any approximation of "precision" other than upon very broad precepts. PSR is just an innocuous sounding phrase for cashing-in of assets - be it employees, physical plant or ability to sustain events and what used to be called surge capacity. Some carriers have apparently reached the point of no return in this arena - as evidenced by UP's "We Can Embargo It" philosophy. The trend seems to be toward transportation entropy as dictated by the eternal buck. The only resistance to this trend, I guess, is regulation; and that is too often a function of reaction to disasters - of one kind or another.
Every economy over the past, say, 40 years has significantly affected operating efficiency. Elimination of the caboose and crew consist reductions increased the amount of time necessary to inspect trains, fix mechanical problems and make set outs and pick ups. Yard capacity was affected by remote control crews slowing the processing of traffic, backing up onto the mainline, draining the crew base. The experiential base was basically disdained and discarded through buyouts so that now one wonders what is left. The days when just about any delay could be resolved within twenty minutes or so are long gone.
Anyone remotely familiar with operations knew PSR was an oxymoron. There are just too many variables in a large-scale operation for any approximation of "precision" other than upon very broad precepts. PSR is just an innocuous sounding phrase for cashing-in of assets - be it employees, physical plant or ability to sustain events and what used to be called surge capacity. Some carriers have apparently reached the point of no return in this arena - as evidenced by UP's "We Can Embargo It" philosophy. The trend seems to be toward transportation entropy as dictated by the eternal buck. The only resistance to this trend, I guess, is regulation; and that is too often a function of reaction to disasters - of one kind or another.
While we can complain about train size - railroads as a transportation entity, operate in a world that says if a little is good, more is better, and a lot more is a lot better.
Truckers every year lobby the various state legislatures to increase both the weight and length of trucks on the highways. I suspect pipelines, when they feel the need, increase either the size or pressures that the lines operate at. Ocean shipping has seen vessels move from the size of the Liberth ships that won WW II and formed the basis of the after war merchant shipping fleets of many seafaring countries. Nowadays the oceans are populated with container ships hauling 24K TEU's and ULCC tankers hauling millions of gallons of oil.
All modes of transportation have accidents - accidents that don't do humanity or the enviornment any good. Such is the price of living in the 21st Century's industrialized world economy.
Never too old to have a happy childhood!
Perhaps the most recognized of the "short/fast" carriers was Rio Grande when 4000 tons made a train (on some routes) - but that was largely a function of geography and density. The natural low resistance of steel wheel on steel rail tends toward longer consists and with the advent of DPU locomotive consists greater train length has been made much more practicable.
chutton01So Balt, what you seem to be saying that under EHH PSR was neither Precise, nor Scheduled, nor really even Railroading, but rather "Grab that cash with both hands and make a stash". If so, from what I see, I would agree.
Bingo, Bango, Bongo! We have a winner!
So Balt, what you seem to be saying that under EHH PSR was neither Precise, nor Scheduled, nor really even Railroading, but rather "Grab that cash with both hands and make a stash". If so, from what I see, I would agree.
Fred M Cain zugmann charlie hebdo One can see some pretty nifty spins, even on here. Well, I'm gonna go out on a limb and put in a good word for PSR. I think it was a good idea when it first came out and IT is STILL a good idea today. BUT ~ ! The thing is that the railroads are not really practicing PSR as it was originally intended to be done. I thought the original idea was to run trains on time, everyday on a tight schedule whether there were only 15 cars or 150. That tended to allow crews to get home on time to their originating terminal. This is NOT what's happening now. It's all about 200+ car trains to cut costs. The Wall Street Journal had an article late last week that Harris was returning to the CNR. He wants to emphasize running shorter trains ON TIME everyday. Wasn't this what "PSR" was originally supposed to be all about? That's not what's happening anymore. One guy in this thread mentioned that running a 215 car train is insane. Think about this: When I was a small child the average freight car was around 40 feet. Today it's closer or even more than 60 feet. So, how long would this train have been in equivalent 40-ft cars in, say, 1958? 300 cars? 350 ? YIKES ~ !
zugmann charlie hebdo One can see some pretty nifty spins, even on here.
charlie hebdo One can see some pretty nifty spins, even on here.
Well, I'm gonna go out on a limb and put in a good word for PSR. I think it was a good idea when it first came out and IT is STILL a good idea today.
BUT ~ ! The thing is that the railroads are not really practicing PSR as it was originally intended to be done.
I thought the original idea was to run trains on time, everyday on a tight schedule whether there were only 15 cars or 150. That tended to allow crews to get home on time to their originating terminal. This is NOT what's happening now.
It's all about 200+ car trains to cut costs. The Wall Street Journal had an article late last week that Harris was returning to the CNR. He wants to emphasize running shorter trains ON TIME everyday. Wasn't this what "PSR" was originally supposed to be all about?
That's not what's happening anymore. One guy in this thread mentioned that running a 215 car train is insane. Think about this: When I was a small child the average freight car was around 40 feet. Today it's closer or even more than 60 feet.
So, how long would this train have been in equivalent 40-ft cars in, say, 1958? 300 cars? 350 ?
YIKES ~ !
PSR as implemented by EHH on CSX was nothing more than Buzzword BS.
At the time I retired, three months before EHH's arrival, CSX was operating a Scheduled merchandise freight network over its system and measuring the adherence to that schedule both on the basis of train operation as well as car scheduling making the right trains On Time. Three months later EHH arrived on the property and all the scheduling was thrown out with yesterday's bath water, as well as many of the facilities and employees that were used to operate that network. Six years later CSX is still struggling.
Fred M CainI thought the original idea was to run trains on time, everyday on a tight schedule whether there were only 15 cars or 150. That tended to allow crews to get home on time to their originating terminal. This is NOT what's happening now.
I have an October, 1963 New York Central ETT. Prominently displayed on the back cover is a line chart entitled, "Operation Sunset, Protected Connections Pay Off - Let's Roll As Advertised."
The chart includes times.
Precision Scheduled Railroading. The way it should be - and was, in 1963 on the NYC.
Big Cat All of us railfans need to take a very hard lesson from these 2 videos. Notice that both cars with cameras did not stop close to the stop line. Also as soon as derailment started they backed away. Guys stay away from the tracks either in cars or on foot. It can happen anytime of loose lading ( more likely ) or cars coming off the rail.
All of us railfans need to take a very hard lesson from these 2 videos. Notice that both cars with cameras did not stop close to the stop line. Also as soon as derailment started they backed away. Guys stay away from the tracks either in cars or on foot. It can happen anytime of loose lading ( more likely ) or cars coming off the rail.
I really and truly believe that this is EXTREMELY good advice. To modify the old railroad rule to "expect a train on any track and any time", perhaps it's more like "expect a derailment on any track at any time".
It's kind of just a little bit like defensive driving. STAY SAFE ~ !
blue streak 1 But conductors are still supposed to be outside watching a train go by in less than ideal spacing conditions. Everytime I see one of these derailment videos, I want to move another 30 feet from the track. ns145 Videos of the derailment taken from cars stopped at the crossing: https://www.youtube.com/watch?v=VpZNNRdgnSE https://www.youtube.com/embed/7jddyvXKgnU All of us railfans need to take a very hard lesson from these 2 videos. Notice that both cars with cameras did not stop close to the stop line. Also as soon as derailment started they backed away. Guys stay away from the tracks either in cars or on foot. It can happen anytime of loose lading ( more likely ) or cars coming off the rail.
But conductors are still supposed to be outside watching a train go by in less than ideal spacing conditions. Everytime I see one of these derailment videos, I want to move another 30 feet from the track.
ns145 Videos of the derailment taken from cars stopped at the crossing: https://www.youtube.com/watch?v=VpZNNRdgnSE https://www.youtube.com/embed/7jddyvXKgnU
Videos of the derailment taken from cars stopped at the crossing:
https://www.youtube.com/watch?v=VpZNNRdgnSE
https://www.youtube.com/embed/7jddyvXKgnU
zugmann tree68 And, as I mentioned before - the bugaboo is at the terminals. Running shorter, faster trains just gets them to their hold out point faster. But shorter trains also can be yarded/departed quicker. So can lessen holdout times for other trains.
tree68 And, as I mentioned before - the bugaboo is at the terminals. Running shorter, faster trains just gets them to their hold out point faster.
But shorter trains also can be yarded/departed quicker. So can lessen holdout times for other trains.
The most insidious constraint on fluidity in the world of PSR operations is Crew Change Locations - especially on Single Track lines. If there is not a crew available for a train - from a Dispatching perspective, unless there is a passing siding of sufficient length to hold the train in the clear, you can't move that train beyond the last siding where it will clear so that one does not Lock Down the entire line. Remember at a Crew Change location, trains run in both (or more) directions through the Crew Change location. It is not unusual when there are crew shortages at a Crew Change location to have sidings blocked for 100 miles in each direction waiting on the avilability of crews.
Once you get into the holding trains out for the availability of a outbound crew, it then takes normally a minimum of two crews to move the train - one to move the train where it was held and went on the law to the crew change location and another to move it out of the crew change location.
One must remember, in the days before PSR, the carriers went through the era of 'Plant Rationalization', where all elements of the track structure and layout that weren't considered 'critical' to the operation in the 1980's & 90's were removed and sold for their scrap value.
tree68And, as I mentioned before - the bugaboo is at the terminals. Running shorter, faster trains just gets them to their hold out point faster.
The opinions expressed here represent my own and not those of my employer, any other railroad, company, or person.
tree68 CMStPnP Also I would suspect three short .5 mile trains running at 70 mph beats the tails off one long train 1.5 mile train running at 40-45 mph. But that would require three crews, vs one. And therein lies the rub, as they say. And, as I mentioned before - the bugaboo is at the terminals. Running shorter, faster trains just gets them to their hold out point faster. Not to mention that there's not a lot of 70 MPH running here in the east. Forty MPH is more like it.
CMStPnP Also I would suspect three short .5 mile trains running at 70 mph beats the tails off one long train 1.5 mile train running at 40-45 mph.
But that would require three crews, vs one. And therein lies the rub, as they say.
And, as I mentioned before - the bugaboo is at the terminals. Running shorter, faster trains just gets them to their hold out point faster.
Not to mention that there's not a lot of 70 MPH running here in the east. Forty MPH is more like it.
Not only would three 2500 foot trains require thee crews to operate them - they would each require six to nine miles of track space to operate on clear signals. The physical plant of a carrier has to be 'designed' to support the Operating Plan that the carrier intends to operate.
]-7500'->___Clear___|___Approach____|____Restricted Proceed or STOP___|
The above spacing would be required between each of the 2500 foot trains. Many carriers us a 'Advance Approach' indication to give additional waring that the next signal will likely be Approach. Signal spacing on Class 1 carriers is nominally 3 miles between signals.
blue streak 1These excess car trains may be a cause of various buff forces that can cause derailments. Can you even imagine the buff forces on rail lines that are hogback? Maybe time to limit buff forces on any train ? These empty lumber carriers are especially subject to derailing subject to buff forces. Maybe they should only ride on end of trains?
I am kind of at a loss to explain how we got here because not too long ago I thought the future was the FEC strike breaker model of short and fast manifest trains with two crew members and no caboose. How in the heck did we get to slow but very long manifest trains.
Someone should do a study on this because I think the reduction in speed alone, not to mention all the maintenence and operational issues probably still favors short and fast trains as the FEC demonstrated in the 1960's. Also I would suspect three short .5 mile trains running at 70 mph beats the tails off one long train 1.5 mile train running at 40-45 mph.
These excess car trains may be a cause of various buff forces that can cause derailments. Can you even imagine the buff forces on rail lines that are hogback? Maybe time to limit buff forces on any train ? These empty lumber carriers are especially subject to derailing subject to buff forces. Maybe they should only ride on end of trains?
Would imposing a requirement that all hazmat lading be placed in the train within the first 20 cars following the locomotive, be a step in the right direction? (with buffer cars, of course) At least that would reduce the number of cars in front of the haz-mat that could contribute to this type of derailment?
Further I was pondering that if you have 15 haz mat cars included in a 220 car train, a catastrophic problem in any of the other 205 cars can potentially be a problem. If however you limit that train transporting those 15 haz mat cars to no more than 50 cars total, there are only 35 other cars in that train that could cause a problem....the odds are better.
charlie hebdo So what is the threshold for strong actions to be taken or ordered?
So what is the threshold for strong actions to be taken or ordered?
I don't know, but what I do know is that it was claimed that allowing Union employees to go on strike would cost the economy billions per day.
zugmannWhat acrobats?
I really don't want to fingerpoint. You can go back and read through that other thread and fairly easily read the defensiveness of some. And being a railroad forum, that's completely understandable. If folks find comfort in asserting that NS did everything "expected" or required of it,..perhaps they should peel back an additional layer and contemplate maybe it's time to start expecting more...going forward. Originally there were another 2 paragraphs of rant on this post, but I thought the better, and deleted them. You're smart, Im sure you can interpret my meaning from whats here.
charlie hebdo So what is the threshold for strong actions to be taken or ordered? Hard to say. Sometimes it's one event - Chatsworth led to an emergency order banning cell phone from locomotive cabs (now codified in RR rulebooks). Lac Megantic led to an EO about securing trains, also now codified in rulebooks. I'm sure that all the railroads (and car owners) are looking at their defect detectors and car inspections after East Palestine. But their preventative measures are already in place - inadequate as they were in this particular case. We don't know what caused the derailment at Springfield yet. If it's another failed bearing, you can be sure that there will be orders to inspect, etc. If it was something unrelated, you can chalk it up to another of the 1,000 derailments that occur each year. I mentioned before that one measure for components in a number of industries is the MTBF, or mean time between failure. Someone mentioned earlier that the bearing in question was basically designed to outlive the axle it's mounted on. That's why it's call MEAN time - it's the average. Some fail earlier, some fail later.
Hard to say. Sometimes it's one event - Chatsworth led to an emergency order banning cell phone from locomotive cabs (now codified in RR rulebooks). Lac Megantic led to an EO about securing trains, also now codified in rulebooks.
I'm sure that all the railroads (and car owners) are looking at their defect detectors and car inspections after East Palestine. But their preventative measures are already in place - inadequate as they were in this particular case.
We don't know what caused the derailment at Springfield yet. If it's another failed bearing, you can be sure that there will be orders to inspect, etc. If it was something unrelated, you can chalk it up to another of the 1,000 derailments that occur each year.
I mentioned before that one measure for components in a number of industries is the MTBF, or mean time between failure. Someone mentioned earlier that the bearing in question was basically designed to outlive the axle it's mounted on. That's why it's call MEAN time - it's the average. Some fail earlier, some fail later.
C'mon! We need a knee-jerk reaction and we need it now or we're going to lose our phoney-baloney jobs here gentlemen! Cue Blazing Saddles harumph scene...
zugmann charlie hebdo One can see some pretty nifty spins, even on here. I also saw a lot of people promoting PSR back in the day, even on here.
I also saw a lot of people promoting PSR back in the day, even on here.
Yes, but they have no influence.
The GOP Senator Sullivan from Alaska said," "Well, I want to hear some of the issues that Sen. [Sherrod] Brown raised, and in particular some of the issues that related to the laying off of workers," Sullivan said. "It's not just going to be him. It's going to be government officials as well on what is happening."
While government might be slow, without its pressure, NS ain't gonna do diddly.
If you go back to that video and expand it to full screen, then hit "stop", you can advance the video almost frame by frame by clicking on the bar of the video with the red progress dot.
It definitely looks like those white coil cars were on the ground already, but the rear truck of the tank car in front of the centerbeam flat car looks weird as it enters the crossing and the centerbeam is "out of square" with the car behind it as it comes across the crossing also.
At 00:35 the second and third white coil cars are definitely on the ground before they hit the crossing.
Take a look and see what you think.
tree68 JayBee 215 car trains with empty centerbeams in the middle is a recipe for problems. There are a couple of videos shot at the crossing on-line now. One starts after the whole thing started, but the other, from the other side of the train, appears to show a rolled steel car derailed as it went across the crossing.
JayBee 215 car trains with empty centerbeams in the middle is a recipe for problems.
215 car trains with empty centerbeams in the middle is a recipe for problems.
There are a couple of videos shot at the crossing on-line now. One starts after the whole thing started, but the other, from the other side of the train, appears to show a rolled steel car derailed as it went across the crossing.
I wonder if that covered steel car was empty. It seemed to buck up as it hit the asphalt.
One wonders if it was not derailed prior to that and was being dragged and then the wheels really bucked up when it hit the asphalt.
charlie hebdoOne can see some pretty nifty spins, even on here.
Convicted One Euclid I would say that the narrative involves monster trains, ECP brakes, and other safety technology, particularly hotbox detectors. The acrobats contorting to insist that the railroad did nothing wrong, how in the name of common sense can you have a train showering sparks for over 20 miles (the other accident) , and pretend nothing is wrong with that picture? "Fire hazard"?....hello? And I'm not saying that from the perspective that the railroad should be punished. I'm just pointing out there should be little difficulty in finding a place to start with needed improvements to the status quo.
Euclid I would say that the narrative involves monster trains, ECP brakes, and other safety technology, particularly hotbox detectors.
The acrobats contorting to insist that the railroad did nothing wrong, how in the name of common sense can you have a train showering sparks for over 20 miles (the other accident) , and pretend nothing is wrong with that picture? "Fire hazard"?....hello?
And I'm not saying that from the perspective that the railroad should be punished. I'm just pointing out there should be little difficulty in finding a place to start with needed improvements to the status quo.
One can see some pretty nifty spins, even on here.
Convicted OneThe acrobats contorting to insist that the railroad did nothing wrong, how in the name of common sense can you have a train showering sparks for over 20 miles (the other accident) , and pretend nothing is wrong with that picture? "Fire hazard"?....hello?
What acrobats?
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