Phil in SF quoted Nothing to Lose by Lee Child (Jack Reacher, #12)
Two lonely towns in Colorado: Hope and Despair. Between them, twelve miles of empty road. …
The shoulders were straight and the camber was good.
— Nothing to Lose by Lee Child (Jack Reacher, #12) (Page 475)
New word: camber
The slightly convex or arched shape of a road or other horizontal surface