First, I appreciate your more sincere attempt to engage in this conversation. Thank you.
Having said that, Maintenance costs are not determined by mileage of beam / track and None of those articles you site suggest that.
There honestly is nothing to suggest that the Walt Disney World monorail system will age out because of the deterioration of the track or that track maintenance is particularly expensive.
The Walt Disney World system And I totally different type of monorail system compared to Jacksonville. You cannot extrapolate the cost of maintenance to the beams at Walt Disney World by comparing the cost of maintenance divided by the beam mileage at Jacksonville.
They're totally different systems with totally different types of trains , beams/track and different types of maintenance needs.
The trains of the Walt Disney World resort are far more elaborate, much larger and certainly much longer. The beam/tracks are also completely different. Disney's fleet of trains are much more complex and larger.
Extrapolating costs based on a set value is standard practice in most construction and expenditures. Anyone who has built a home, with a cost-per-square-foot ratio, is well acquainted with the concept. UPS calculates its costs based on its total mileage of all drivers divided by its expenses. It's an averaging, not a hard number.
I did say that each monorail system is unique. They will have their own special costs associated that is inherent to them.
It's not a stretch to say that 14+ miles of track is going to cost far more than 2.5 miles of track. It's obvious.
Weren't there problems with beams sinking at one point? This is what happens when you build on a swamp...
We are lucky that Disney built the monorail when it did; I don't see them doing it now. Certainly I don't see them having extended the EPCOT line if that park was built even 10 years later. That's opinion, not fact, but based on what information we have. The future is the Skyliner, with its cheaper costs and cost-per-mile to maintain.
Ultimately, only Disney knows the hard numbers, and they aren't talking. As usual.