Work Tractor Collides with Monorail Lime

[dstrawn9889]

and without going through tons of rigmarole (through this switch then back and around another... i cannot come up with a permutation that gets 1 to nose into the bay instead of 6. since the whole monorail should fit into the booth to paint then it does not matter the orientation (especially since they cannot run the trains segmented.)

 

[asianway]

and without going through tons of rigmarole (through this switch then back and around another... i cannot come up with a permutation that gets 1 to nose into the bay instead of 6. since the whole monorail should fit into the booth to paint then it does not matter the orientation (especially since they cannot run the trains segmented.)

It cant. You cannot turn a train around without a crane

 

[dstrawn9889]

that is what i thought, i drew all the switches out, and they all "switch"(fixed beam section the same place vs. direction or travel) the same way...

 

[orky8]

I couldn't say ... not sure about deltas ... it looked more lime than green...who knows. I do know that I counted 10 different monorails that day.

This is monorail lime (note the white "delta" under the window between the passenger doors):

This is monorail green (limey color, but no deltas):

Color wise, they are very hard to distinguish unless you see them next to each other like this, unless you look for the deltas.

 

[Tom]

This is monorail lime (note the white "delta" under the window between the passenger doors):

This is monorail green (limey color, but no deltas):

Color wise, they are very hard to distinguish unless you see them next to each other like this, unless you look for the deltas.

The way I remember it is that the "normal" colors (primary, secondary and metallic) are solid, while the non-standard colors (coral, teal, lime) have the deltas. The only exception is peach, which has no deltas. But it could only be mistaken for yellow, and there's a stark difference.

 

[Figment2005]

I'm pretty sure monorails can only go into shop driving cab 6, no? There's no reversing loop on the beamway-you can only go one way

The train was pulled by the tractor by cab 1 (damaged end) past the switch. From there it was then pushed onto the spur line therefor technically being backed in. That is all that I meant.

 

[Figment2005]

I'm sorry guys, I was in a hurry to reply and forgot to realize how the orientation of the train never actually changes. My fingers typed faster than my brain.

 

[flynnibus]

Check this page in the next month. IF this incident occurred, and IF there were injuries caused, there will be a report here.

https://www.osha.gov/pls/imis/estab...tyear=2009&endmonth=03&endday=21&endyear=2014


Everyone else is just wildly speculating and sniping at each other.

Not really. OSHA standards require employers keep RECORDS for worker injuries (see OSHA 300 log information), they only have to report incidents to OSHA directly when it results in fatalities or multiple (3 or more) hospitalizations from the incident.

Here's a primer brochure if you need to know more..

But the short of it is.. based on what has been reported, there is no reason Disney will be required to report this incident to OSHA. The NTSB's interpretation about the monorail system after the last accident still leaves some things murky tho.

 

[Glasgow]

The title makes me think of that Powerman 5000 song When Worlds Collide .. Argh!

 

[ford91exploder]

Breaking News: According to Don Lemon at CNN, Lime may have been swallowed by a black hole.

Go CROW!

Love the MST3K Avatar!

 

[ford91exploder]

It cant. You cannot turn a train around without a crane

You could if you had an old school Turntable or Wye track, That being said that's why the monorails are double ended so one does not need to turn them around.

 

[asianway]

You could if you had an old school Turntable or Wye track, That being said that's why the monorails are double ended so one does not need to turn them around.

Or a reversing loop. The WDW monorail system has none of the 3.

 

[Monorail_Red]

You could if you had an old school Turntable or Wye track, That being said that's why the monorails are double ended so one does not need to turn them around.

Or a reversing loop. The WDW monorail system has none of the 3.

Keep in mind too the trains are electric with buss bars on either side of the beamway. If you switch a train's orientation around, it would be just like switching the positive and negative terminals on your car battery. The car wouldn't work. But doing this to a Monorail will probably cause some significant damage to the train because of the amount of power in the wrong spot after reversing polarity.

 

[ford91exploder]

Or a reversing loop. The WDW monorail system has none of the 3.

Forgot that one - Thanks

 

[CDavid]

Or a reversing loop. The WDW monorail system has none of the 3.

All that would be necessary is to construct a switch (crossover) somewhere along the dual-beam portion of the Epcot line, effectively using the curve through Future World as your reversing loop.

 

[Monorail_Red]

All that would be necessary is to construct a switch (crossover) somewhere along the dual-beam portion of the Epcot line, effectively using the curve through Future World as your reversing loop.

Still not doable because reversing a train's orientation would reverse the polarity of the buss bar/power shoes.

 

[ford91exploder]

Keep in mind too the trains are electric with buss bars on either side of the beamway. If you switch a train's orientation around, it would be just like switching the positive and negative terminals on your car battery. The car wouldn't work. But doing this to a Monorail will probably cause some significant damage to the train because of the amount of power in the wrong spot after reversing polarity.

DC systems have Polarity requirements, AC systems do not.

And that's why Wye tracks, Turntables are used for DC systems the polarity can be corrected at each point, Reversing loops are trickier they require dead spots and very large and expensive contactors to handle polarity changes.

AC systems are easier, all you need to deal with is phase polarity is irrelevant (other than keeping phases synchronized in polyphase systems), leading phase AC is going into the distribution system, lagging phase power is being drawn from power distribution system. AC is why Lionel uses a 3 rail system

Until recently DC motors were preferred as control systems were simple and reliable, now that AC power semiconductors are available in almost unlimited power handling capacity the inherent advantages of AC polyphase motors are showing up in transit systems, Things like regenerative braking where the traction motor is switched to being a generator and power is sent back into the grid. Instant reverse where motors can be reversed simply by switching two phases while motor is running.

 

[Monorail_Red]

This will be my last post on the reversing orientation thing. It is still not doable in this scenario - yes you can engineer a track to accomplish this. But going back to the WDW Monorails as the original example, the trains will not be able to compensate for the reversed polarity.

 

[ford91exploder]

This will be my last post on the reversing orientation thing. It is still not doable in this scenario - yes you can engineer a track to accomplish this. But going back to the WDW Monorails as the original example, the trains will not be able to compensate for the reversed polarity.

The TRAINS don't need to, All that is required is the beamway provide the correct polarity at all times which is not rocket science for a civil engineer (or anyone who has had HO or N model trains which also pick up DC from the track).

OR if you want the TRAIN to do it all that is required is to run the DC through a bridge rectifier which is 4 diodes connected in a ring which will ensure the correct polarity at the output irrespective of DC input polarity.

 

[flynnibus]

The TRAINS don't need to, All that is required is the beamway provide the correct polarity at all times which is not rocket science for a civil engineer (or anyone who has had HO or N model trains which also pick up DC from the track).

well.. you also have the physical location of the pickups to deal with.. and if both rails are equally capable, etc. In model trains we don't have those problems