Question:

What is a typical regression workflow?

Answer:

1. Import existing rail points. (Watch video here).

   • When working with OpenRail Designer, always start in 2D. The 3D model is generated automatically.

2. Sort the points via a set of values to create the existing rails. (Watch video here).

3. Convert the existing rails to generate the Regression Line. (Watch video here).

4. Create a Curvature Diagram to create the alignment or use horizontal regression tools for single or quick method. (Watch video here).

5. Regress the horizontal alignment.

   1. Understand the tool
   2. Step 1
   3. Step 2

6. Report the slews.

7. Create profile using Profile from Rails to begin the Vertical Regression.

8. Create vertical alignment.

9. Report the lifts and lowers.