Slope Controlled Superelevation

When using Slope Controlled Superelevation PT codes, the same slopes are maintained during the entire superelevation transition.  In figure 1, PT Codes –2, -17, -18 and –19 are used to designate the superelevation limits. You can also use –13, -14, -15 and –16 (or any combination thereof) to accomplish the same thing.