The "Gravity Cavity" and "The Hump" have taken their fair shair of transport truck victims -- the Cavity is a sudden deep dip with a sharp right hand turn, the Hump follows immediately afterwards - it, as its' name implies, is a rise in road with a shallow drop off on the other side. It's a riot on a motorcycle, but heavily loaded transport trucks end up with the rear tires in the Cavity and the cab on the other side of the hump. Needless to say, they get stuck, as the bottom of the trailer gets stuck on the hump.
To be honest, 26' RV's with amateur (aka Joe Public) drivers have extreme difficulty on the Dragon - have seen several crossing lines etc first hand.