Maintenance Issues, long time coming
The monorails have long been a favorite for me. Personally, I liked the MK IV's better then the current box cars ( MK VI ) that run the beam.
I am familiar with electrical items, and that is some of the MONORAILS concerns.
When the monorails were new, with shiney copper bars for the 600vdc and those red insulators against a background of white cement, the whole rail looked clean and operable. One point of concern I had was that those nice red insulators were rated for 480v, not 600v. Over time I watched the red insulators turn from bright red to dull grey as they weathered. I might mention, those insulators are supposed to be inside, not in the weather. Insulators used in the weather are usually ceramic or glass.
As those nice red insulators weather, they turn a rough grey color and are subject to shorting or flash overs. If you have glanced up and noticed that amongst the many now greying insulators you see a bright red one, its because the insulator that was replaced failed or flashed over because the weather has broken down the media used for insulation.
That brings us up to today. The Copper bars don't usually wear, maybe needing to be polished but it is highly likely that all those little red insulators need to be replaced on all the beams.
Comment was made as to why they did not just close down one beam and run the other. the simple answer is, SAFETY. Those copper bars have 600vdc in them and workers would be very close to them. It just is not a safe working environment.
The trains are getting old as well. DisneyLand just went through the problem of Monorails ( MK V ) breaking down all the time and now have the new MK VII monorails. ( no air con )... the MK VI at WDW are starting to show age and beginning to break down like the MK V's did.
though I don't agree with the schedule change the DISNEY bean counters have come up with, I do agree the maintenance is long over due, what ever the cause.
the recent article in Mice Chat 08/30/2011, talks about the Monorails being shut down early and the terribly long lines waiting for an hour or longer for the ferry , irritated guests ( with actual heated encounters ) and little if any Disney Security to keep the peace. After an hour waiting, they walked off to to the Grand Floridian dock to wait another hour for the ferry.
Guests that had planned to take the monorail to the hotel were angry and agitated.
If you want the full scoop, you should see the article.
As for permanent or temporary... I am not an employee but it sounds like it will be permanent until the Monorails are eventually replaced. If this may be so, we can no longer plan on using the Monorail for transportation after the park closes.
Quote from Mice Chat article.......
I guess the moral of the story is:
1. Don't pay for a room on the Monorail, until it is running normally again.
2. Don't stay until park close for fear you might be stuck for hours on end.
3. If you are stuck, just wait until almost everyone else has been ferried across, before you go, so that you can avoid angry guests.