Suburban Station wrote:ThirdRail7 wrote:
Why? There are 24 available hours in a day, but that doesn't mean there is demand 24 hours a day. So, why have a train operating at times when the demand is not there? Harrisburg rolls up the sidewalk at a certain point of the day and most keystones sets make at least a trip and a half between NYP-HAR (while a few make two round trips between their originating points.) It is not a dense corridor like the NYP-WAS route.
this is how you calculate utilization that's why. It's true, you want to operate where marginal revenue=marginal cost but that's a separate argument entirely unless you are claiming that Amtrak loses money on every trip on both the NEC and the HAR line during the day. you are making a distinction between NYP-HAR and the rest of the system that is not useful, we're talking about equipment utilization not corridor frequency.
You're the one who brought corridor frequency into the conversation by saying every Keystone set should make a minimum of two round trips between NYP-HAR. Currently, that would result in a corridor frequency increase which leads to additional costs. Is it worth the costs of running everything associated with moving the additional trains? I suspect Pennsylvania doesn't think so.
Suburban Station wrote:
ThirdRail7 wrote:
I'm not sure where you're getting this from, but they are indeed interchangeable. The swap with each other all the time. Indeed, the current procedure for the 90-89 turn is if 90 is operating late, they take the AM1 equipment from 656's equipment to make up 89. When 90 comes in, they take the AM1 equipment and make up 643 for the next day. The only car that isn't entire flexible is the cab car and in a pinch, they will use those too.
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take a closer look at the consist information, what I said is in fact how it operates...especially during the day when it is most important. 180, for example, arrives at 8:44 AM and turns for 127 at 4:05 PM. that's great that the late palmetto will rob the keystone to protect 89 but that's not an example of why Amtrak has poor equipment utilization (to protect late trains) rather than an argument that it does not. do planes set for 7 hours at the airport during the day?
First of all, 180 doesn't turn for 127 unless there is an equipment problem or disruption, so it is you that needs take a closer look at the consist information. It hasn't in quite some time. Secondly, there are reasons that trains are manipulated because optimization of equipment also requires optimization of facilities. Once the train turns, where does it go on its next trip? What type of facilitie does that place have? Where will the calendar day inspection be performed?
Equally important is some trains are deliberatly held in certain locations to facilitate inspections for their future runs. You can't perform every single inspection on every train in the middle of the night. That is why some of them are done in the middle of the day.. Why do you need extra trains running out of NYP during the middle of the day when the trains that started their day off corridor and east of NYP are now on the corridor at the times these trains are sitting around? It's the perfect time to perform the necessary inspections so you have equipment to manipulate and when they end up in facilities without full services, they can "turn and burn." Furthermore, your rush hour trains are protected from most of the off-corridor hijinx.
Suburban Station wrote: that's great that the late palmetto will rob the keystone to protect 89 but that's not an example of why Amtrak has poor equipment utilization (to protect late trains) rather than an argument that it does not. do planes set for 7 hours at the airport during the day?
This was an example of equipment being interchangeable, which you previously stated it wasn't. It was not a pro or con point for optimization. An AM-1 is an AM-1. We've sent keystones (minus a cab car) to Albany (minus a split club.) Albany trains have been sent out as a Keystone to Philadelphia (minus the split club) with four cars to pick up a cab car to go to Harrisburg.
So, they are interchangeable. It happens day in and day out. You just don't see it.
Suburban Station wrote:[ ThirdRail7 wrote:
As you stated, trains that sit in a yard do not make money, but trains that are operating also represent costs. The state of Pennsylvania is involved with the plan for the Keystones. They have a set pool and the utilization and schedules are based upon their request. They could have more service if they wanted it, but they declined to pay for it.
equipment that is available for train operation also has costs regardless of whether it operates or not. the majority of the equipment expense has been incurred by the time the equipment is available for service.
That's the key word...expense. Who eats it? Amtrak? The state sponsor? I'd bet real money that Amtrak bills the state for everything that is associated with the preparation and movement of the equipment. I'd also bet there are mileage and wear and tear provisions. Add the costs for the crews and I'm not sure I'd say the majority of expense has been incurred. So, if Amtrak is billing the state for every move associated with the service, it would be up to them to decide if they think it is worth it.
Suburban Station wrote:[your comments on the keystone are not relevant to issues of utilization and are also not correct. the state has asked for estimates for more service but Amtrak so far has been incapable of providing them
Actually, the state has received plenty of cost estimates which is how they arrived at the current service plan. Additionally, I wouldn't normally bring this up, but they are on their second proposal for the second Pennsylvanian. If you have access, you should be able to see the three previous Keystone plans or request them, since they exist.
As for Keystones being irrelevent to utilization, you are correct since this is a thread about the Pennsylvanian...not fleet management or Keystones. I was merely responding to your comments regarding why it may not make sense to have every set of Keystone equipment in the Pennsylvanian pool make two round trips.
You are, as always entitled to your opinion.