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Why is the monorail system not as widespread?

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Posted by vsmith on Friday, November 28, 2014 12:19 AM
If back in the Middle of last century a single system like the Alweg model had been established as a defacto standard for all manufacturers to build to monorails might have had a serious chance to be a major player but two rail light transit systems today are just as versatile and better load carriers than the most advanced monorails, plus two rail transit is far more adaptable and versatile as they can also accommodate freight traffic if need be.

   Have fun with your trains

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Posted by zugmann on Friday, November 28, 2014 10:31 PM

northamericanexpress

One of the main reasons that monorail technology has not found widespread appeal in the US is that many individuals still view it as appropriate for amusement parks, zoos and in some cases airports (Newark comes to mind).  Unfortunately, we don't have visionaries like the late Walt Disney (firmly believed that monorails were the wave of the future) to guide us at the moment.

 

Disney may have wanted us to think it was the wave of the future, but by making the monorail such an ubiquitous part of the theme park, he only reenforced the stereotype that monorails are for amusement only.  He probably caused more damage to his own cause than anything else.

 

 

 

 

It's been fun.  But it isn't much fun anymore.   Signing off for now. 


  

The opinions expressed here represent my own and not those of my employer, any other railroad, company, or person.t fun any

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Posted by 54light15 on Sunday, November 30, 2014 6:59 PM

I was so, so disappointed when I rode the Disney monorail in Florida in 1986. After seeing the system at Anaheim on the Disney TV show, "The Wonderful World of Color" (on our black and white TV set, oh the irony) and being so fascinated by the way of the future, I finally got to ride a monorail. It rode like a bus on a rough road! I thought it would glide "as softly as a cloud" as Lyle Lanley said. But no.

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Posted by blue streak 1 on Monday, December 1, 2014 12:46 PM

54light15

I finally got to ride a monorail. It rode like a bus on a rough road! I thought it would glide "as softly as a cloud" as Lyle Lanley said. But no.

 
This brings up something not considered before. How do you surface a monorail ?  We know EWR airport has had to close its monorail  for 6 months +.  The ride had become rough and items like switches probably are being repaired or replaced especially the high use end of track switches.  The Port Authority has unlimited funds but it still has taken way too long. 
That kind of shut down is completely not acceptable for main line trains.
Any one in the highway repair business can testify to the difficulty of adjusting the surface of bridges back to smooth.  The 26 mile I-10 causeway over the Atchafalya river basin has many closures to smooth the road. 
A RR sufacing machine ( tamper ) can surface a track much quicker usually only in hours. 
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Posted by BaltACD on Monday, December 1, 2014 3:53 PM

While we view terra fima as being stable, from a heavy duty construction vantage point it is anything but stable, at least until you get down and anchored to bedrock - however far down beneath the surface that may be.

I doubt most monorail systems will anchor their piers to bedrock and as such, the ground is subject to various forms of movment; thus changing the alignment of the piers with their neighbors and affecting the ride characteristics of the line.

Never too old to have a happy childhood!

              

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Posted by gardendance on Monday, December 1, 2014 4:00 PM

I bet 54light15 and blue streak 1 were talking about the railhead, not the trackbed, surface.

blue streak 1, when you say "RR sufacing machine" do you mean "rail grinder"? I too wonder what monorails, hanging or overrunning, steel or concrete, use to keep the rail smooth.

Patrick Boylan

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Posted by blue streak 1 on Monday, December 1, 2014 4:37 PM

gardendance

blue streak 1, when you say "RR sufacing machine" do you mean "rail grinder"? I too wonder what monorails, hanging or overrunning, steel or concrete, use to keep the rail smooth.

 
No  --   a tamper which aligns and levels the track by adjusting the cross ties and compacting the ballast.  Any one with a picture ?
 
Around here rail grinding is always done after track is surfaced.  High end surfacing uses a laser and mirror system to get rails level and straight.
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Posted by gardendance on Monday, December 1, 2014 5:17 PM

Thanks for clearing up my ambiguous interpretation. I know what a tamper is, that one word has saved me needing 999 more from you, so I don't need a picture.

I now have to think what elevated railways use for their trackbed. I can't think of any off the top of my head that have ballast anymore, but I think some of the ones in Philadelphia did once upon a time.

Patrick Boylan

Free yacht rides, 27' sailboat, zip code 19114 Delaware River, get great Delair bridge photos from the river. Send me a private message

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Posted by blue streak 1 on Monday, December 1, 2014 5:58 PM

Actually Amtrak is on a campaign to replace open deck bridges ( cross ties on support beams ) to a ballast deck bridge.  You will note most conversions have a higher MAS.  Of course some bridges such a portal are open deck but the replacement(s) are planned to be ballasted.

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Posted by NorthWest on Monday, December 1, 2014 9:05 PM

The beam is concrete, and I suspect that it would have similar surface issues with wear as highways, both using rubber tires.

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Posted by erikem on Monday, December 1, 2014 10:32 PM

BaltACD

While we view terra fima as being stable, from a heavy duty construction vantage point it is anything but stable, at least until you get down and anchored to bedrock - however far down beneath the surface that may be.

In many parts of the country, even the bedrock isn't stable, especially when crossing a fault line.

On a similar vein, I've wondered what was involved in resurfacing a maglev line.

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Posted by CSSHEGEWISCH on Tuesday, December 2, 2014 7:15 AM

gardendance

I now have to think what elevated railways use for their trackbed. I can't think of any off the top of my head that have ballast anymore, but I think some of the ones in Philadelphia did once upon a time.

The Midway L (Orange Line) is on ballasted track for much of its route, even on the elevated sections.

The daily commute is part of everyday life but I get two rides a day out of it. Paul

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