@Madockawando posted:It's 2.5 edge to edge, roadbed to roadbed.
That's what I suspected. The image I shared is how close the two lines would be on the far side of the plan @SteveH shared - 048 inner loop & effective 058 outer loop with 6" center-to-center on the near side means 4" center-to-center on the far side. Without some additional straight or a switch to 060 curves on the outer loop, I think you're going to have issues.