

WARPING OF SHOULDERS OR TIESLOPES UTILIZING PROFILES

This help sheet describes the procedure when the warping or
variable slopes are required.  Although the examples are
shown with shoulders and tieslopes, the process can be
expanded to any criteria which requires warping.


1.  Determine criteria which needs to warping feature.

2.  Standard criteria currently available includes:
         tieslope3d.*
         shldpav3.*


         Procedure:


1.  Determine the station ranges where warping is needed.  
In the areas where standard slopes are utilized, nothing
needs to be done.  In the areas where warping is done, a 
profile needs to be created.


2.  Create a profile whose extent covers the warping.  NOTE:
THE PROFILE IS NOT ELEVATIONS, BUT IS THE SLOPE. 

For example, let's say that from 10+00 to 12+00, we want a
slope of -4% as we emanate from centerline, which is the 
default I have set up in my criteria.

Then, from 12+00 to 14+00, I want to warp from -4 to -2.
From 14+00 to 16+00, I want to stay at -2.
From 16+00 to 18+00 I want to warp from -2 back to -4.
From 18+00 on, I want to utilize the default.

My profile would be:

s pro SPECIAL
vpi 1 s 12+00 e -4
vpi 2 s 14+00 e -2
vpi 3 s 16+00 e -2
vpi 4 s 18+00 e -4
end pro


3.  Add the include shldpav3 or tieslope3d as usual in the
input file.  For the profile, include the name of the profile 
created in step 2.

 
