Railroad Curve

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VANCE
Posts: 197
Joined: Wed Jun 18, 2008 2:01 pm
Location: redwood valley

Railroad Curve

Post by VANCE »

Don't know why I am such a problem calculating the these curves.
I am just missing something

Any help would be appreciated

The tracks are Northwest Pacific Rail Road, just North of Ukiah

Thank You

Vance
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tmack
Posts: 12
Joined: Mon Dec 22, 2003 6:50 am
Location: Bakersfield, CA

Re: Railroad Curve

Post by tmack »

These are Taper curves. you need to have the Taper Curve Tables to calculate.
VANCE
Posts: 197
Joined: Wed Jun 18, 2008 2:01 pm
Location: redwood valley

Re: Railroad Curve

Post by VANCE »

with a 1 1/2 taper and 3d45' degree
90 foot, use the table to turn defections at 30 feet as show?
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tmack
Posts: 12
Joined: Mon Dec 22, 2003 6:50 am
Location: Bakersfield, CA

Re: Railroad Curve

Post by tmack »

Vance I private messaged you.
mbstanton
Posts: 61
Joined: Sun Sep 08, 2002 9:44 am

Re: Railroad Curve

Post by mbstanton »

Generally the track is calculated as spiral tapers according the UPRR taper tables and track maps. The railroad right-of-ways are circular curves with that curve data available from the taper tables. I took me 20 years to figure this out. The attached PDF shows the calcs for both. The green lines are the tapers and the red lines are the R/W lines.

Michael Stanton, PLS
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VANCE
Posts: 197
Joined: Wed Jun 18, 2008 2:01 pm
Location: redwood valley

Re: Railroad Curve

Post by VANCE »

Thank you
I'm going to try that tomorrow
Vance
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