Where does “turtle curb” come from?

turtle curb (English) comes from English Turtle, from French tortue, from Middle French tortue, from Old Occitan tortuga, from Late Latin tartarucha, from Latin tartarūchus, from Ancient Greek ταρταροῦχος, from Ancient Greek ἔχω — to hold; to overpower.

turtle curb (English): A type of curb and speed bump found on motor racing tracks, having an oblong shape and elevated profile of a turtleshell, used for path and areal denial to delimit track limits, and launch vehicles into the air, blow-out suspensions, rip-out undercarriages, of those who choose to run over it