Thank you for the clarification, it is much appreciated. I wish I could learn the coding and the like to help you guys as I love to see these improvements, but I do live a busy non-SimCity 4 life as a paramedic, often dealing with another form of "coding". Speaking of bugs, I notice that the following FTLs have no slope tolerance and might be already among the bugs you guys are attempting to remedy: OWR type 020 and, AV type 020.
1) I'll be waiting lol eagerly but very patiently, inaddition I had forgotten about differing heights (already aware that higher than L0 tends to be more difficult to model)...
2) I needed to fire up SC4 in order to get the name of the FlexRamp that looks most visually similar to my proposal - the "FlexRamp Type D1-Dual Shift Inside". It could even work similar to such ramp. A sort of very lazy line drawing overlay of an existing area of potential rebuild is depicted below, and as shown in the image, it would allow a line of tiles to be saved by shifting one of the MISs to the west:
3) With the way the OWR/REW had been going I figured. In fact, I had wondered about REW C & F type ramps and that was answered by another post.