To make the Horseshoe Line in Trainz there is alot of technical detail and trackcharts needed. I am happy to provide you, and anyone else, with detailed information on all locations.
All the "curves" of tracks have names: ie: McGarveys, McGinnleys, Alligripis, Bennington:
http://www.billspennsyphotos.com/apps/photos/photo?photoid=78124254
Salpino Curve-in honor of Oscar Salpino-Deceased-PRR Track Foreman.
To make a route without exact gradients, and true to life scenes, would be nit-picked apart by railfans that know the area. Several persons in MSTS have created a Horseshoe that looks nothing like the actual area, with giant Redwood Seqouias, and other unprototypical topograpic scenes.
In my decades of railfanning (trespassing) I have traveled to virtually all the inacessable "curves" and remote locations. I will be happy to give you details on each location. Where curves and straight segments are, and more information why there are the 2 grade separations at Bennington & Rt 53 Bridge.
The gradients varry greatly from Altoona to Cresson. Pretty much of the East Slope from Altoona to Tunnel Hill is @ 1.75%
See:
http://i525.photobucket.com/albums/cc339/cascaderailroad/AltoonaCresson.jpg
The one red arrow shows that the Portage bore is at a higher elevation, than the less steep Allegheny & Gallitzin bore.
The other two red arrows point to the track gradient, and degree of curve radius.
When people picture the Horseshoe Curve line, they usually only see only the "Curve" itself ... when in fact the East Slope & West Slope is a 37 mile long gradient up and over the Allegheny Front Range.
I am really liking this Marz thing. Can you create a
Saturn IV rocket in Trainz ? :mop: :udrool: :mop: (I watched each and every Cape (Canaveral) Kennedy rocket launch take-off when I was a child).