may overlap each other. In these cases, the designer should coordinate the transitions
to provide a smooth and uniform change from the full superelevation of the first curve
to the full superelevation of the second curve. Figure 2.10 shows two diagrams suggesting
ways in which this may be accomplished. In both diagrams each curve has its
own L value (L1, L2) depending on the degree of curvature, and the superelevation is
revolved about the centerline.